HomeMy WebLinkAbout2025-12-17; Planning Commission; 01; Costco Fuel Expansion Project Meeting Date: Dec.17, 2025 1
To: Planning Commission
Staff Contact: Mike Strong, Asst. Director of Community Development 442-339-2721,
mike.strong@carlsbadca.gov
Subject: Costco Fuel Expansion Project
Location: APN 211-040-36-00 / District 3
Case Numbers: AMEND 2022-0020 / AMEND 2022-0021 / AMEND 2022-0022
Applicant/Representative: Applicant: Julie Anderson, Barghausen Consulting Engineers, Inc.
(425) 656-7403, janderson@barghausen.com
CEQA Determination: ☐ Not a Project ☒ Exempt ☐ IS/ND or IS/MND ☐ EIR ☐ Other:
Permit Type(s): ☒ SDP ☒ CUP ☒ CDP ☐ TM ☐ GPA ☐ REZ ☐ LCPA
☐ Other:
CEQA Status: ☐ Not a Project ☐ Exempt ☐ IS/ND or IS/MND ☐ EIR
☒ Other: Streamlined Exemption, CEQA Guidelines §§ 15183 / 15168
Commission Action: ☒ Decision ☐ Recommendation to City Council ☐ Informational (No Action)
Recommended Actions
That the Planning Commission ADOPT the Planning Commission Resolution (Exhibit 1) APPROVING of a CEQA
exemption determination; and amendments to a Site Development Plan (AMEND2022-0020), Conditional Use
Permit (AMEND2022-0021), and Coastal Development Permit (AMEND2022-0022), based upon the findings and
subject to the conditions contained therein.
Existing Conditions & Project Description
Existing Setting
The 14.8-acre project site is located at 951
Palomar Airport Rd., which consists of a Costco
Wholesale discount store, tire center, gas fueling
station, and associated parking, landscaping, and
facilities. The existing gas station is located on the
eastern portion of the project site, near the main
entrance to the COSTCO warehouse off of Palomar
Airport Road. There is a retail building that
includes fast-food and small retail shops located
just north of the fueling facility before reaching
Palomar Airport Road. East and south of the
Costco site are open space areas and west of the
site are developed with office, retail, and
restaurant uses. Please see Exhibit 2, Approximate
Project Site Boundaries Map, for the project
location.
Site Map
Dec. 17, 2025 Item #1 1 of 174
The site is located south of Palomar Airport Road, between Armada Drive and Paseo del Norte. The site is also
within the City's Coastal Zone and within the boundaries of the Commercial/Visitor-Serving Overlay Zone. The
Costco Wholesale site is designated Regional Commercial (R) on the city's General Plan Land Use Map and is
zoned General Commercial with a Qualified Development Overlay (C-2-Q). The property is also located within a
Commercial Visitor Serving Overlay Zone. Table “A” below includes the General Plan designations, zoning and
current land uses of the subject site and surrounding properties.
TABLE A – SITE AND SURROUNDING LAND USE
Location General Plan
Designation Zoning Current Land Use
Site
Regional (R) General Commercial –
Qualified Zone (C-2-Q)
and Commercial Visitor
Serving Overlay Zone
(CVS Overlay Zone)
Regional Commercial/Retail
North
Open Space (OS) and
Visitor Commercial
(VC)
Open Space (OS) and
Commercial Tourist
Qualified Zone (C-T-Q)
Open Space/Agriculture (Flower Fields),
Regional Commercial/Retail, and Hotel
South OS OS Open Space
East OS OS and CVS Overlay
Zone
Open Space
West Residential-30 (R-30,
General Commercial
(GC), Office (O), and
VC
Residential Density-
Multiple Zone (RD-M),
C-2, Office, and C-T-Q
Storage, Mixed Commercial, Office, and
Hotel
General Plan Designation
Zoning Map Designation
Proposed Project
The Costco site has been reviewed by the Planning Commission/City Council at different times throughout the
years (Exhibit 3). The Costco Wholesale project was first approved in 1991 (Planning Case No. SDP 90-05) and
completed in October 1992. At time the business was called the Price Club. Price Club changed its name to
Costco Wholesale in 1993. A member-only, automated fueling station with three pump islands (six dispensers)
and an overhead canopy was approved in Oct. 1997 (CUP 90-03(A)/SDP 90-05(C)/CDP 97-05). Since then, there
have been several requests to expand the gas fueling station and its operations. The Conditional Use Permit, Site
Development Permit, and Coastal Development Permit were amended in Sept. 2000 and July 2014, to add
additional pump islands and fuel dispensers and to expand the canopy. As of this writing, the gas fueling station
consists of eleven (11) pumps, twenty-two (22) vehicle fueling positions, and a 5,216 square foot canopy.
Dec. 17, 2025 Item #1 2 of 174
The applicant proposes to add four new fuel pumps, one underground storage tank, relocate a retaining wall,
and canopy area expansion to an existing gas station facility (“Project”). The Project would maintain the existing
gas station location and expand the facility to a total of fifteen (15) pumps and thirty (30) vehicle fueling
positions to better serve peak period demand and reduce peak period queuing, wait times, and idling. The
existing canopy area would increase from 5,874 to 9,553 square feet. The Project includes construction of all
necessary improvements on-site, including any needed utility connections as well as any pedestrian, bicycle, and
landscaping improvements. A Site Development Plan Amendment is required because of the Q Overlay zoning
designation. A Conditional Use Permit Amendment is required for the gas station use. A Coastal Development
Permit Amendment is needed for development in the city's Coastal Zone.
Access to the gas station facility is proposed to be taken from the existing driveways along Palomar Airport Road
(the intersection of Palomar Airport Road / Armada Drive as well as from the driveway access off of Costco
Access / Palomar Place Shopping Center access, which is shared with the rest of the shopping center. (The access
to the property would remain unchanged and the gas station would be primarily accessed off the main entrance
drive.) Kittelson & Associates, Inc. prepared a transportation study for the Project to forecast, describe, and
analyze the effect of the expansion on existing and future circulation infrastructure. The study concluded that
the intersection of Palomar Airport Road / Armada Drive – Costco access would continue to operate similar to
existing conditions. However, the Project would be required to extend the westbound left-turn movement
storage length at the intersection. The modification would be funded, designed and constructed by the
applicant. For site access and circulation, it is estimated that the average vehicle queues in the gas station area
would be contained within the queue area. Kittelson’s report reviewed before and after data from other
comparable Costco fuel station expansion sites to determine a representative relationship between queues and
the addition of fueling positions to an existing fuel station While there is an anticipated increase in trips
expected with the fuel station expansion Project, other similar expansion projects showed that increase in
fueling capacity is greatly outweighed by the benefits of providing more pumps to expedite the processing of
vehicles during peak times. All prior Costco expansion locations were found to have more efficient processing of
vehicles, shorter wait times, shorter queues, and less idling after expansion. A proposed queue management
plan has been developed for the Carlsbad Costco fuel station to implement as needed.
Public Outreach & Comment
The Applicant completed the Early Public Notice procedures pursuant to City Council Policy No. 84
(Development Project Public Involvement Policy). A notice of project application was mailed on Jan. 13, 2023, to
all owners of property located within a 600-foot radius, and all occupants of property located within a 100-foot
radius of the Project site. A two-foot-tall by three-foot-wide yellow sign was posted at the Project site on Jan.
12, 2023, notifying all pass-by traffic of the Project, which provides the project name, application numbers,
description, as well as both applicant and city staff contact information.
In response to community concerns about a proposed mixed use development project, the City Council on Sept.
24, 2024, directed staff to return to discuss possible options to strengthen Policy 84 requirements. Amendments
were made, effective Monday, Dec. 9, 2024, to enhance public engagement for projects requiring Planning
Commission or City Council review. All projects in review prior to Dec. 9, 2024 were allowed to continue under
the pre-existing notification requirements (previous version of Policy No. 84) until completion of the project,
provided that the design remains unchanged. Therefore, a public outreach meeting and project website was an
option but not required for this Project.
Environmental Review
Prior to final action by the decision-making body on the project, an environmental determination shall be made
by the appropriate decision-makers as part of the approval action to ensure agency compliance with the California
Environmental Quality Act (CEQA).
Staff has reviewed the scope of the Project and applicable studies provided by the applicant and finds that the
Project belongs to a class of projects that the State Secretary for Resources has found do not have a significant
Dec. 17, 2025 Item #1 3 of 174
impact on the environment, and it is therefore categorically exempt from the requirement for the preparation of
environmental documents pursuant to CEQA in accordance with CEQA Guidelines Section 15301 – “Existing
Facilities.” Section 15301 exempts a wide range of activities concerning existing structures and facilities, including
subdivision (e) which allows additions to existing structures provided that the addition will not result in an increase
of more than 50 percent of the floor area of the structures before the addition, or 2,500 square feet, whichever
is less; or 10,000 square feet if the project is in an area where all public services and facilities are available to allow
for maximum development permissible in the General Plan and the area in which the project is located is not
environmentally sensitive. Note that the latter is whichever is less" and that 50 percent means 1/2 of the existing
structure's floor area -- the building may not be doubled in size.
A draft Notice of Exemption is included as Exhibit 7. This must be reviewed and considered prior to approval of
the project. The draft Notice of Exemption demonstrates that the project qualifies for the exemption – and that
none of the exceptions to categorical exemptions listed in the CEQA Guidelines Section 15300.2 or CMC Chapter
19.04 have been triggered. As part of an additional and optional public disclosure, the draft Notice of Exemption
was posted on the city’s website on Oct. 14, 2025, and an email was sent to parties signed up to receive
environmental notices.
Conclusion
Considering the information above and in the referenced attachments, staff found that the proposed Project can
be found consistent with all applicable policies of the General Plan and the provisions of the Municipal Code and
Local Facility Management Zone 5. All required public improvements and utilities are available to serve the
proposed development. In addition, there are no environmental issues associated with the Project.
The attached Resolution includes specific conditions of approval applicable to the proposed gas fueling station
expansion and its operations. The Project site is developed with a Costco warehouse and an existing commercial
fuel dispensing station use, with twenty-two (22) vehicle fueling positions located on the east side of the
property. There is a retail building that includes fast-food and small retail shops located just north of the Costco
before reaching Palomar Airport Road. The on-site expansion would maintain the existing fuel station location
and expand the facility to a total of thirty (30) vehicle fueling positions to better serve peak period demand and
reduce peak period queuing, wait times, and idling. The Project would be required to comply with all applicable
California Building Standards Codes and engineering standards through the standard building permit and civil
improvement plan cheohcking process. Staff recommend the Planning Commission adopt the resolution and
approve the proposed Project described in this staff report.
Exhibits
1. Planning Commission Resolution
2. Location Map
3. Costco Project History
4. Project Analysis
5. Transportation Impact Study, Dated Aug. 14, 2025
6. Disclosure Statement
7. CEQA Section 15301 Determination
8. Reduced Project Exhibits (Full Size Project Exhibits “A” – “G” date Nov. 24, 2025 on file in the Planning
Division)
9. List of Acronyms and Abbreviations
Dec. 17, 2025 Item #1 4 of 174
Exhibit 1
A RESOLUTION OF THE PLANNING COMMISSION OF THE CITY OF CARLSBAD,
CALIFORNIA, APPROVING AMENDMENTS TO A SITE DEVELOPMENT PLAN,
CONDITIONAL USE PERMIT, AND COASTAL DEVELOPMENT PERMIT TO ADD
4 FUEL PUMPS, ONE UNDERGROUND STORAGE TANK, THE RELOCATION OF
A RETAINING WALL, A 3,719-SQUARE-FOOT CANOPY EXPANSION, AND
OTHER SITE IMPROVEMENTS ON PROPERTY LOCATED AT 951 PALOMAR
AIRPORT ROAD (ASSESSOR PARCEL NUMBER 211-040-36-00) IN THE
SOUTHWEST QUADRANT OF THE CITY, THE GENERAL COMMERCIAL ZONE –
QUALIFIED DEVELOPMENT OVERLAY ZONE (C-2-Q) AND THE
COMMERCIAL/VISITOR-SERVING OVERLAY ZONE, AND LCOAL FACILTIIES
MANAGEMENT ZONE 5.
CASE NAME: COSTCO FUEL EXPANSION PROJECT
CASE NO.: AMEND 2022-0020 / AMEND 2022-0021 / AMEND 2022-
0022
WHEREAS, Julie Anderson, Barghausen Consulting Engineers, Inc., “Developer,” has filed a
verified application with the City of Carlsbad regarding property owned by Costco Wholesale
Corporation, “Owner,” described as
PARCEL 2 OF PARCEL MAP NO. 17542, IN THE CITY OF CARLSBAD, COUNTY
OF SAN DIEGO STATE OF CALIFORNIA, FILED IN THE OFFICE OF THE COUNTY
RECORDER OF SAN DIEGO COUNTY, JUNE 27, 1995.
(“the Property”); and
WHEREAS, said verified application constitutes a request for an amendment to a Site
Development Plan, Conditional Use Permit, and Coastal Development Permit as shown on Exhibit(s) “A” -
“G” dated Nov. 24, 2025, on file in the Planning Division, AMEND 2022-0020, AMEND 2022-0021, AMEND
2022-0022 – COSTCO WHOLESALE CORPORATION as provided by Chapters 21.06, 21.42, 21.201, and
21.208 of the Carlsbad Municipal Code; and
WHEREAS, pursuant to the California Environmental Quality Act (CEQA, Public Resources Code
section 21000 et. seq.) and its implementing regulations (the State CEQA Guidelines), Article 14 of the
California Code of Regulations section 15000 et. seq., the city is the Lead Agency for the project, as the
public agency with the principal responsibility for approving the proposed project; and
PLANNING COMMISSI ON RESOLUTION NO. 7562
Dec. 17, 2025 Item #1 5 of 174
WHEREAS, the Planning Commission did, on Dec. 17, 2025, hold a duly noticed public hearing as
prescribed by law to consider said request to add four (4) fuel pumps, one underground storage tank, the
relocation of a retaining wall, a 3,719-square-foot canopy expansion, and other site improvements on
property located at 951 Palomar Airport Road; and
WHEREAS, at said public hearing, upon hearing and considering all testimony and arguments, if
any, of all persons desiring to be heard, said Commission considered all factors relating to the
amendments to the Conditional Use Permit, Site Development Plan, and Coastal Development Permit;
and
WHEREAS, at said public hearing, upon hearing and considering all testimony and arguments, if
any, of all persons desiring to be heard, said Commission considered all factors relating to the Site
Development Plan, Conditional Use Permit, and Coastal Development Permit.
NOW, THEREFORE, BE IT HEREBY RESOLVED by the Planning Commission of the City of Carlsbad
as follows:
A) That the foregoing recitations are true and correct.
B) Compliance with CEQA. The proposed action is categorically exempt from environmental
review under CEQA Guidelines section 15301(e) (Class 1 – Existing Facilities) because the
scope of the project consists of an addition to an existing structure provided that the
addition will not result in an increase of more than 50 percent of the floor area of the
structures before the addition, or 2,500 square feet, whichever is less. No exceptions to
the categorical exemption as set forth in CEQA Guidelines Section 15300.2 or Carlsbad
Municipal Code Section 19.04.070(C) apply. The notice of exemption will be filed with the
Recorder/County Clerk within five days after project approval by the decision-making
body.
C) The amendments to the Site Development Plan (AMEND2022-0020), Conditional Use
Permit (AMEND2022-0021), and Coastal Development Permit (AMEND2022-0022),
amend CUP90-03(e), SDP90-05(I), and CDP97-05(B) respectively.
D) That based on the evidence presented at the public hearing, the Planning Commission
APPROVES AMEND 2022-0020 / AMEND 2022-0021 / AMEND 2022-0022 – COSTCO
FUEL EXPANSION PROJECT, based on the following findings and subject to the following
conditions:
Dec. 17, 2025 Item #1 6 of 174
Findings:
Site Development Plan, AMEND 2022-0020
1. That the proposed development or use is consistent with the General Plan and any applicable
master plan or specific plan, complies with all applicable provisions of Chapter 21.06 of the
Carlsbad Municipal Code, and all other applicable provisions of this code, in that the General Plan
Land Use designation of the site allows for shopping centers with anchor and secondary tenants
that are region-serving, as well as mixed use. This includes full-line department stores (2 or
more), factory outlet center, “power center” of several high-volume retail uses, including
general merchandise, automobile sales, apparel, furniture, home furnishings, etc. and a full
range of secondary tenants such as specialty retail, restaurants, entertainment, convenience
stores, service facilities, business and professional offices. The project site is developed with a
Costco warehouse, and an existing commercial fuel dispensing station use, with twenty-two
(22) vehicle fueling positions located on the east side of the property.
The Costco warehouse will continue to provide convenient and safe access to goods desired by
the community, and the proposed fuel pumps and canopy additions are components of a retail
use that is permitted. The on-site expansion would maintain the existing fuel station location
and expand the facility to a total of thirty (30) vehicle fueling positions to better serve peak
period demand and reduce peak period queuing, wait times, and idling. The project is consistent
with the various elements and objectives of the Reginal (R) General Plan Land Use designation,
and the intent and purpose of the Qualified Development Overlay Zone (Q Zone) as discussed
in the findings below and in the project staff report dated Dec. 17, 2025, incorporated herein by reference as though fully set forth herein.
2. That the requested development or use is properly related to the site, surroundings and
environmental settings, will not be detrimental to existing development or uses or to
development or uses specifically permitted in the area in which the proposed development or use
is to be located, and will not adversely impact the site, surroundings or traffic circulation, in that
the operating characteristics will be similar to the prior approved gas fueling station, with the
exception of the addition of four new fuel pumps, one underground storage tank, relocation of
a retaining wall, and expanded canopy area.
The Costco warehouse will continue to provide convenient and safe access to goods desired by
the community, and the proposed fuel pumps and canopy additions are components of a retail
use that is permitted in the C-2-Q Zone. The architecture of the addition is the same as the
existing fueling station. The location of the addition will not disrupt the existing vehicular
circulation on the site in that it is in-line with existing driveways. Additional queuing is provided
east of the existing and proposed fuel pumps. Additional vehicle fueling positions would better
serve peak period demand and reduce peak period queuing, wait times, and idling.
The project also proposes to remove and replace asphalt pavement, concrete curbs, and
landscaping to accommodate the fuel dispensing station. The site circulation has been
redesigned so that vehicles accessing the gas fueling station area are less likely to queue or stack
to the circulation aisle (connecting to the easterly driveway) and would not conflict with
vehicles entering the site from Palomar Airport Road. Elimination of a landscape median along
the eastern access aisle to the property helps distribute vehicle queue stacking more freely in
order to avoid conflicts between vehicles entering the gas fueling station and those entering
Dec. 17, 2025 Item #1 7 of 174
the Costco Wholesale shopping center or the adjacent commercial businesses. The amended
Project proposes a revised site layout designed to ease navigation throughout the gas fueling
station area.
3. That the site for the intended development or use is adequate in size and shape to accommodate
the use, in that the project proposes the addition of four new fuel pumps, one underground
storage tank, relocation of a retaining wall, expanded canopy area, and landscaping
modifications.
The addition is located entirely within or adjacent to a constructed building footprint previously
established by the existing Costco gas fueling station.
For site access and circulation, the operating characteristics will be similar to the prior approved
gas fueling station. The amended project design will increase the functionality and flow of the
site. Before and after data were evaluated from other comparable Costco fuel station expansion
sites to determine a representative relationship between queues and the addition of fueling
positions to an existing fuel station. While there is an anticipated increase in trips expected with
the fuel station expansion Project, other similar expansion projects showed that increase in
fueling capacity is greatly outweighed by the benefits of providing more pumps to expedite the
processing of vehicles during peak times. All prior Costco expansion locations were found to
have more efficient processing of vehicles, shorter wait times, shorter queues, and less idling
after expansion. The average gas queues, and the weekday AM and Saturday peak hour 95th
percentile queues will be contained within the queue area. During the PM peak hour, the 95th
percentile queue may spill outside the gas queue area. A proposed queue management plan
has been developed for the Carlsbad Costco fuel station to implement as needed.
4. That all yards, setbacks, walls, fences, landscaping, and other features necessary to adjust the
requested development or use to existing or permitted future development or use in the
neighborhood will be provided and maintained, in that the project complies with all applicable
development standards (i.e. setbacks, lot coverage, and height restrictions) of the General
Commercial – Qualified Zone (C-2-Q) and Commercial Visitor Serving Overlay. Landscaping
would be provided consistent with the requirements of the city’s Landscape Manual. A total of
570 square feet of new landscape bed is to be created, not including demolished or remodeled
landscaping.
5. That the street systems serving the proposed development or use is adequate to properly handle
all traffic generated by the proposed use, in that the on-site expansion would maintain the
existing fuel station location and expand from twenty-two (22) to thirty (30) vehicle fueling
positions to better serve peak period demand and reduce peak period queuing, wait times, and
idling. The average gas queues, and the weekday AM and Saturday peak hour 95th percentile queues will be contained within the queue area. During the PM peak hour the 95th percentile
queue may spill outside the gas queue area. A proposed queue management plan has been
developed for the Carlsbad Costco fuel station to implement as needed.
The project would add more than 11 peak hour trips and 110 daily trips to Palomar Airport
Road, which is an “exempt road segment” in the City of Carlsbad Geneal Plan Mobility Element.
Per the City’s Mobility Element Policy 3-P.11, the project would be subject to implementing a
TDM plan and TSM strategies, as conditioned. The intersection of Palomar Airport Road /
Dec. 17, 2025 Item #1 8 of 174
Armada Drive-Costco Access would continue to operate similar to existing conditions. The
average queue lengths at this intersection would be within the available storage. The
westbound left-turn movement 95th percentile queue currently exceeds the storage length and
would increase up to 60 feet during weekday PM and Saturday midday peak times. The left-
turn lane could be extended by 110 feet by modifying the raised median to capture existing and
anticipated increases in 95th percentile left-turn queue lengths, which are estimated to need
400 feet of storage.
Transit MMLOS along the project frontage on Palomar Airport Road was found to be below LOS
standard for transit users. Therefore, the project would be responsible for the implementation
of benches at the following bus stops: 1) Palomar Airport Road eastbound direction between
Paseo del Norte and Armada Drive (by Carl’s Junior); and 2) Palomar Airport Road westbound
direction east of Armada Drive (NE corner of the intersection).
Conditional Use Permit, AMEND 2022-0021
6. That the requested use is necessary or desirable for the development of the community, is in
harmony with the various elements and objectives of the general plan, in that the amended
project design will increase the functionality and flow of the site by better serving peak period
demand and reducing peak period queuing, wait times, and idling. The average gas queues, and
the weekday AM and Saturday peak hour 95th percentile queues will be contained within the
queue area. During the PM peak hour the 95th percentile queue may spill outside the gas queue
area. A proposed queue management plan has been developed for the Carlsbad Costco fuel
station to implement as needed.
The Costco warehouse will continue to provide convenient and safe access to goods desired by
the community, and that the proposed fuel pumps and canopy additions are consistent with
the General Plan, C-2-Q Zone, Commercial Visitor Serving Overlay Zone, and Local Coastal
Program.
7. That the requested use is not detrimental to existing uses or to uses specifically permitted in the
zone in which the proposed use is to be located in that the General Commercial – Qualified Zone
(C-2-Q Zone) allows for shopping centers with anchor and secondary tenants that are region-
serving, as well as mixed use, including uses similar to those existing and proposed. The project
site is developed with a Costco warehouse, and an existing commercial fuel dispensing station
use, with twenty-two (22) vehicle fueling positions located on the east side of the property.
The Costco warehouse will continue to provide convenient and safe access to goods desired by
the community, and the proposed fuel pumps and canopy additions are components of a retail
use that is permitted in the C-2-Zone.
The surrounding properties are also located within the C-2-Q Zone, Open Space (OS Zone), Residential Density Multiple Zone (RD-M Zone), Office Zone (O Zone), and Commercial Tourist
Qualified Zone (C-T-Q Zone). There is a retail building that includes fast-food and small retail
shops located just north of the fueling facility before reaching Palomar Airport Road. East and
south of the Costco site are open space areas and west of the site are developed with office,
retail, and restaurant uses. The on-site expansion of the gas fueling station would maintain the
existing fuel station location and expand the facility to a total of thirty (30) vehicle fueling
Dec. 17, 2025 Item #1 9 of 174
positions to better serve peak period demand and reduce peak period queuing, wait times, and
idling. The proposed project would not be detrimental to the existing uses or uses specifically
permitted in the various zones because the use is existing, membership based, and would not
significantly change the number of users accessing the property. The project would be
conditioned to utilize transportation demand management strategies. Given the variety of the
surrounding land uses and the conditions of approval included in this resolution, the operation
of the project would not be detrimental to existing uses or uses permitted in the various zones.
8. That the site for the proposed conditional use is adequate in size and shape to accommodate the
yards, setbacks, walls, fences, parking, loading facilities, buffer areas, landscaping and other
development features prescribed in this code and required by the City Planner, planning
commission or City Council, in order to integrate the use with other uses in the neighborhood, in
that the project can be fit within the proposed development area without the need for any
development standard modifications. The project complies with all applicable development
standards (i.e. setbacks, lot coverage, and height restrictions) of the General Commercial –
Qualified Zone (C-2-Q) and Commercial Visitor Serving Overlay Zone. Landscaping would be
provided consistent with the requirements of the city’s Landscape Manual. A total of 570 square
feet of new landscape bed is to be created, not including demolished or remodeled landscaping.
The proposed use is located entirely within or adjacent to a disturbed and constructed building
footprint previously established by the existing fueling station, all required fencing, landscape
trees, and parking will remain in place and the proposed improvements are adequately
screened from public view in that they are located internal to the site near the main Costco
entrance and the Costco property is separated by 650 feet from the nearest residential use.
9. That the street system serving the proposed use is adequate to properly handle all traffic
generated by the proposed use, in that the on-site expansion would maintain the existing fuel
station location and expand from twenty-two (22) to thirty (30) vehicle fueling positions to
better serve peak period demand and reduce peak period queuing, wait times, and idling. The average gas queues, and the weekday AM and Saturday peak hour 95th percentile queues will
be contained within the queue area. During the PM peak hour the 95th percentile queue may
spill outside the gas queue area. A proposed queue management plan has been developed for
the Carlsbad Costco fuel station to implement as needed.
The project would add more than 11 peak hour trips and 110 daily trips to Palomar Airport
Road, which is an “exempt road segment” in the City of Carlsbad Geneal Plan Mobility Element.
Per the City’s Mobility Element Policy 3-P.11, the project would be subject to implementing a
TDM plan and TSM strategies, as conditioned. The intersection of Palomar Airport Road /
Armada Drive-Costco Access would continue to operate similar to existing conditions. The
average queue lengths at this intersection would be within the available storage. The
westbound left-turn movement 95th percentile queue currently exceeds the storage length and
would increase up to 60 feet during weekday PM and Saturday midday peak times. The left-
turn lane could be extended by 110 feet by modifying the raised median to capture existing and
anticipated increases in 95th percentile left-turn queue lengths, which are estimated to need
400 feet of storage.
Transit MMLOS along the project frontage on Palomar Airport Road was found to be below LOS
standard for transit users. Therefore, the project would be responsible for the implementation
Dec. 17, 2025 Item #1 10 of 174
of benches at the following bus stops: 1) Palomar Airport Road eastbound direction between
Paseo del Norte and Armada Drive (by Carl’s Junior); and 2) Palomar Airport Road westbound
direction east of Armada Drive (NE corner of the intersection).
Coastal Development Permit, AMEND 2022-0022
10. That the proposed development is in conformance with the Mello II Certified Local Coastal
Program (LCP) and all applicable policies, in that the Local Coastal Program (LCP) Land Use
designation for the property is Reginal (R), which is consistent with both the city’s General Plan
Land Use designation. The C-2-Q Zone implements the R Land Use designation, which allows for
shopping centers with anchor and secondary tenants that are region-serving, as well as mixed
use. This includes full-line department stores (2 or more), factory outlet center, “power center”
of several high-volume retail uses, including general merchandise, automobile sales, apparel,
furniture, home furnishings, etc. and a full range of secondary tenants such as specialty retail,
restaurants, entertainment, convenience stores, service facilities, business and professional
offices. The project site is developed with a Costco warehouse, and an existing commercial fuel
dispensing station use, with twenty-two (22) vehicle fueling positions located on the east side of the property. There is a retail building that includes fast-food and small retail shops located
just north of the Costco before reaching Palomar Airport Road.
11. The proposal is in conformity with the public access and recreation policies of Chapter 3 of the
Coastal Act in that the property is not located adjacent to the shoreline. Therefore, the gas fuel
station expansion project would not interfere with the public’s right to physical access to the
ocean and, furthermore, the site is not suited for water-oriented recreation activities.
12. That the project is consistent with the provisions of the Coastal Resource Protection Overlay Zone
(Chapter 21.203 of the Zoning Ordinance) in that the gas fuel station expansion project would
adhere to the city's Master Drainage Plan, Grading Ordinance, Storm Water Ordinance, BMP
Design Manual and Jurisdictional Runoff Management Program (JRMP) to avoid increased
urban runoff, pollutants, and soil erosion. No undevelopable steep slopes and the previously
graded site is not located in an area prone to landslides, or susceptible to accelerated erosion,
floods, or liquefaction. The is no riparian habitat within the site. Therefore, there will be no
impact to native habitat.
Commercial Visitor Serving Overlay Zone
13. The proposed project is adequately designed to accommodate the high percentage of visitor,
tourist and shuttle bus/alternative transportation users anticipated given the proposed use and
site location within the overlay zone. The project site is developed with a Costco warehouse, and
an existing commercial fuel dispensing station use, with twenty-two (22) vehicle fueling
positions located on the east side of the property. The location of the addition will not disrupt
the existing vehicular circulation on the site in that it is in-line with existing driveways.
Additional queuing is provided east of the existing and proposed fuel pumps. Additional vehicle
fueling positions would better serve peak period demand and reduce peak period queuing, wait
times, and idling.
14. That the building forms, building colors and building materials combine to provide an architectural
style of development that will add to the objective of high-quality architecture and building design
Dec. 17, 2025 Item #1 11 of 174
within the overlay zone. The architecture of the addition is the same as the existing fueling
station.
15. That the project complies with all development and design criteria of the overlay zone. The
General Commercial – Qualified Zone (C-2-Q Zone) and Commercial Visitor Overlay Zone allows
for shopping centers with anchor and secondary tenants that are region-serving, as well as
mixed use, including uses similar to those existing and proposed. The project site is developed
with a Costco warehouse, and an existing commercial fuel dispensing station use, with twenty-
two (22) vehicle fueling positions located on the east side of the property. The analysis provided
in Exhibit 4 of the Planning Commission Staff Report dated Dec. 17, 2025 demonstrates
compliance with each respective zone, including the overlay zone.
16. For gas fueling stations, motel, hotel or restaurant uses on a planned industrial zoned property:
That the proposed use is commercial in nature and therefore subject to the overlay zone;
however, the proposed use shall be consistent with the intent and purpose of the P-M zone. The
Costco warehouse will continue to provide convenient and safe access to goods desired by the
community, and the proposed fuel pumps and canopy additions are components of a retail use
that is conditionally permitted. The on-site expansion would maintain the existing fuel station
location and expand the facility to a total of thirty (30) vehicle fueling positions to better serve
peak period demand and reduce peak period queuing, wait times, and idling. The proposed use
is located entirely within or adjacent to a disturbed and constructed building footprint
previously established by the existing fueling station, all required fencing, landscape trees, and
parking will remain in place and the proposed improvements are adequately screened from
public view.
General
17. The Planning Commission finds that the project, as conditioned herein, is in conformance with
the Elements of the city’s General Plan, based on the facts set forth in the staff report dated Nov. 17, 2025, including, but not limited to the following:
a. Land Use & Community Design, Goal 2-G.2 – The proposed project includes a request to
expand an existing gas fueling station. The site can be adequately served by existing utilities
and is convenient to public transit including bus stops, which have been conditioned with
the approval.
b. Land Use & Community Design, Goal 2-G.3 – This commercial project is proposed on a
developed site in an area of urban development. The project will provide the city and region
with new/expanded opportunities to access retail, restaurant, and other commercial
services. Properties within the vicinity of the project site consist of a mixture of residential,
commercial, public, and quasi-public uses as permitted. There is a retail building that
includes fast-food and small retail shops located just north of the fueling facility before
reaching Palomar Airport Road. East and south of the Costco site are open space areas and west of the site are developed with office, retail, and restaurant uses.
c. Land Use & Community Design, Goal 2-G.17 – The proposed project is an expansion of an
existing gas fueling station. The site is surrounded on all sides by urban development and
uses, excepting to the south and east which are dedicated open space areas.
Dec. 17, 2025 Item #1 12 of 174
The proposed project, an addition to a gas fueling station (retail component of an existing
retail use. Costco warehouse provides regional commercial services, draws customers from
outside the city, generates tax revenue and jobs, and provides goods and services to
residents in the city.
d. Mobility, Goal 3-G.3 – The proposed project has been designed to meet circulation
requirements, which include maintaining or enhancing frontage improvements consisting
of new curb, gutter, sidewalks, and landscaping. The project would add more than 11 peak
hour trips and 110 daily trips to Palomar Airport Road, which is an “exempt road segment”
in the City of Carlsbad Geneal Plan Mobility Element. Per the City’s Mobility Element Policy
3-P.11, the project would be subject to implementing a TDM plan and TSM strategies, as
conditioned. The intersection of Palomar Airport Road / Armada Drive-Costco Access would
continue to operate similar to existing conditions. The average queue lengths at this
intersection would be within the available storage. The westbound left-turn movement
95th percentile queue currently exceeds the storage length and would increase up to 60
feet during weekday PM and Saturday midday peak times. The left-turn lane could be
extended by 110 feet by modifying the raised median to capture existing and anticipated
increases in 95th percentile left-turn queue lengths, which are estimated to need 400 feet
of storage.
The site circulation has been redesigned so that vehicles accessing the gas fueling station
area do not have car queuing or stacking that blocks the circulation aisle (connecting to the
easterly driveway) and would not conflict with vehicles entering the site from Palomar Airport Road. Furthermore, the amended Project proposes a revised site layout designed to
ease navigation throughout the gas fueling station area.
Transit MMLOS along the project frontage on Palomar Airport Road was found to be below
LOS standard for transit users. Therefore, the project would be responsible for the
implementation of benches at the following bus stops: 1) Palomar Airport Road eastbound
direction between Paseo del Norte and Armada Drive (by Carl’s Junior); and 2) Palomar
Airport Road westbound direction east of Armada Drive (NE corner of the intersection).
e. Public Safety, Goal 6-G.1 – The proposed project is not located in any Very High Fire Severity
Zone, Flood Zones, or Earthquake Fault Zones. The proposed structural improvements
would be required to meet all seismic design standards at the time of building permit in
accordance with the California Building and Fire Codes. Therefore, the proposed project is
consistent with the applicable fire safety requirements.
f. Public Safety, Policy 6-P.6 – The project has been conditioned to develop and implement a
program of “best management practices” for the elimination and reduction of pollutants
which enter and/or are transported within storm drainage facilities.
g. Public Safety, Policy 6-P.34 – The project is required to comply with all Building and Fire
Codes to ensure that fire protection standards are met by the proposed structures.
Therefore, the proposed project is consistent with the applicable fire safety requirements.
h. Public Safety, Policy 6-P.39 – The project is required to construct or pay applicable fees for
necessary improvements, public utilities, and facilities in accordance with Growth
Dec. 17, 2025 Item #1 13 of 174
Management requirements; and the project will not affect the city’s ability to implement
its Emergency Operations Plan.
i. Sustainability, Policy 9-P.1 – At the building permit stage, the project will also be reviewed
for compliance with the CAP ordinances.
18. The project is consistent with the Citywide Facilities and Improvements Plan, the Local Facilities
Management Plan for Zone 5 and all city public facility policies and ordinances. The project
includes elements or has been conditioned to construct or provide funding to ensure that all
facilities and improvements regarding sewer collection and treatment; water; drainage;
circulation; fire; schools; parks and other recreational facilities; libraries; government
administrative facilities; and open space, related to the project will be installed to serve new
development prior to or concurrent with need. Specifically,
a. The Public Facility fee is required to be paid by Council Policy No. 17 and will be collected prior
to the issuance of building permit.
b. The Local Facilities Management fee for Zone 5 is required by Carlsbad Municipal Code
Section 21.90.050 and will be collected prior to issuance of building permit.
19. The project has been conditioned to pay any increase in public facility fee, or new construction
tax, or development fees, and has agreed to abide by any additional requirements established by
a Local Facilities Management Plan prepared pursuant to Chapter 21.90 of the Carlsbad Municipal
Code. This will ensure continued availability of public facilities and will mitigate any cumulative
impacts created by the project.
20. This project has been conditioned to comply with any requirement approved as part of the Local
Facilities Management Plan for Zone 5.
21. That all necessary public facilities required by the Growth Management Ordinance will be
constructed or are guaranteed to be constructed concurrently with the need for them created by
this project and in compliance with adopted city standards.
22. That the project is consistent with the city’s Landscape Manual and Water Efficient Landscape
Ordinance (Carlsbad Municipal Code Chapter 18.50).
23. The Planning Commission has reviewed each of the exactions imposed on the Developer
contained in this resolution, and hereby finds, in this case, that the exactions are imposed to
mitigate impacts caused by or reasonably related to the project, and the extent and the degree
of the exaction is in rough proportionality to the impact caused by the project.
Conditions:
NOTE: A grading permit, improvement plan, landscaping permit, building permit must all be obtained
and secured following discretionary permit approval, but prior to construction and prior to occupancy. Unless specifically stated in the condition, all of the following conditions, upon the
approval of this proposed development, must be met prior to approval of the building or grading
permit whichever occurs first. All references to the “Site Plan” reference the project plans dated
Nov. 24, 225, attached as Exhibit 7 of the Planning Commission Staff Report dated Dec. 17, 2025.
Dec. 17, 2025 Item #1 14 of 174
1. If any of the following conditions fail to occur, or if they are, by their terms, to be implemented
and maintained over time, if any of such conditions fail to be so implemented and maintained
according to their terms, the city shall have the right to revoke or modify all approvals herein
granted; deny or further condition issuance of all future building permits; deny, revoke, or further
condition all certificates of occupancy issued under the authority of approvals herein granted;
record a notice of violation on the property title; institute and prosecute litigation to compel their
compliance with said conditions or seek damages for their violation. No vested rights are gained
by Developer or a successor in interest by the city’s approval of this Conditional Use Permit, Site
Development Plan, and Coastal Development Permit.
2. Staff is authorized and directed to make, or require the Developer to make, all corrections and
modifications to the Conditional Use Permit, Site Development Plan, and Coastal Development
Permit documents, as necessary to make them internally consistent and in conformity with the
final action on the project. Development shall occur substantially as shown on the approved
Exhibits. Any proposed development, different from this approval, shall require an amendment
to this approval.
3. Developer shall comply with all applicable provisions of federal, state, and local laws and
regulations in effect at the time of building permit issuance.
4. If any condition for construction of any public improvements or facilities, or the payment of any
fees in-lieu thereof, imposed by this approval or imposed by law on this project are challenged,
this approval shall be suspended as provided in Government Code §66020. If any such condition
is determined to be invalid, this approval shall be invalid unless the City Council determines that
the project without the condition complies with all requirements of law.
5. Developer/Operator shall and does hereby agree to indemnify, protect, defend, and hold
harmless the City of Carlsbad, its Council members, officers, employees, agents, and
representatives, from and against any and all liabilities, losses, damages, demands, claims and
costs, including court costs and attorney’s fees incurred by the city arising, directly or indirectly,
from (a) city’s approval and issuance of this Conditional Use Permit, Site Development Plan, and
Coastal Development Permit, (b) city’s approval or issuance of any permit or action, whether
discretionary or nondiscretionary, in connection with the use contemplated herein, and (c)
Developer/Operator’s installation and operation of the facility permitted hereby, including
without limitation, any and all liabilities arising from the emission by the facility of
electromagnetic fields or other energy waves or emissions. This obligation survives until all legal
proceedings have been concluded and continues even if the city’s approval is not validated.
6. Prior to submitting the building plans, improvement plans, grading plans, or final map, whichever
occurs first, Developer shall submit to the City Planner, a 24" x 36" copy of the (Project Site Plan
or other), conceptual grading plan and preliminary utility plan reflecting the conditions approved
by the final decision making body. The copy shall be submitted to the City Planner, reviewed and,
if found acceptable, signed by the city's project planner and project engineer. If no changes were
required, the approved exhibits shall fulfill this condition.
7. This project shall comply with all conditions and mitigation measures which are required as part
of the Zone 5 Local Facilities Management Plan and any amendments made to that Plan prior to
the issuance of building permits.
Dec. 17, 2025 Item #1 15 of 174
8. This approval shall become null and void if building or grading permits are not issued for this
project within 36 months from the date of project approval.
9. Building permits will not be issued for this project unless the local agency providing water and
sewer services to the project provides written certification to the city that adequate water service
and sewer facilities, respectively, are available to the project at the time of the application for the
building permit, and that water and sewer capacity and facilities will continue to be available until
the time of occupancy.
10. Developer shall pay the Citywide Public Facilities Fee imposed by City Council Policy #17, the
License Tax on new construction imposed by Carlsbad Municipal Code Section 5.09.030, and CFD
#1 special tax (if applicable), subject to any credits authorized by Carlsbad Municipal Code Section
5.09.040. Developer shall also pay any applicable Local Facilities Management Plan fee for Zone 5
pursuant to Chapter 21.90. All such taxes/fees shall be paid at issuance of building permit. If the
taxes/fees are not paid, this approval will not be consistent with the General Plan and shall
become void.
11. Prior to issuance of the Building Permit, Developer shall submit to the city a Notice of Restriction
executed by the owner of the real property to be developed. Said notice is to be filed in the office
of the County Recorder, subject to the satisfaction of the City Planner, notifying all interested
parties and successors in interest that the City of Carlsbad has issued a Conditional Use Permit,
Site Development Plan, and Coastal Development Permit on the property. Said Notice of
Restriction shall note the property description, location of the file containing complete project
details and all conditions of approval as well as any conditions or restrictions specified for
inclusion in the Notice of Restriction. The City Planner has the authority to execute and record an
amendment to the notice which modifies or terminates said notice upon a showing of good cause
by the Developer or successor in interest.
12. Prior to issuance of grading permit(s), Developer shall make a separate formal landscape
construction drawing plan check submittal to the Planning Division and obtain City Planner
approval of a Final Landscape and Irrigation Plan showing conformance with the approved
Preliminary Landscape Plan and the city’s Landscape Manual. Developer shall construct and install
all landscaping and irrigation as shown on the approved Final Plans. All landscaping shall be
maintained in a healthy and thriving condition, free from weeds, trash, and debris. All irrigation
systems shall be maintained to provide the optimum amount of water to the landscape for plant
growth without causing soil erosion and runoff.
13. The first submittal of Final Landscape and Irrigation Plans shall be pursuant to the landscape plan
check process on file in the Planning Division and accompanied by the project’s building,
improvement, and grading plans.
14. Prior to issuance of grading and building permits, Developer shall list the following condition on
all grading and building permit construction plans. Construction activities shall take place during
the permitted time and day per Carlsbad Municipal Code Chapter 8.48. Developer shall ensure
that construction activities for the proposed project are limited to the hours from 7:00 a.m. to
6:00 p.m. Monday through Friday, and 8:00 a.m. to 6:00 p.m. on Saturdays; no work shall be
conducted on Sundays or on federal holidays.
Dec. 17, 2025 Item #1 16 of 174
15. All roof appurtenances, including air conditioners, shall be architecturally integrated and
concealed from view and the sound buffered from adjacent properties and streets, in substance
as provided in Building Department Policy No. 80-6, to the satisfaction of the City Planner and
Building Official.
16. No outdoor storage of materials shall occur onsite unless required by the Fire Chief. When so
required, the Developer shall submit and obtain approval of the Fire Chief and the City Planner of
an Outdoor Storage Plan, and thereafter comply with the approved plan.
17. Developer shall submit and obtain City Planner approval of an exterior lighting plan including
parking areas. All lighting shall be designed to reflect downward and avoid any impacts on
adjacent homes or property. Canopy lighting shall be recessed so that the luminaire does not
extend below the surface of the underside of the canopy. For the purposes of this condition, a
photometric plan for the canopy, fueling area, and the fuel facility queue area (located from the
pumps entrance to the internal driveway along the eastern boundary of the site) shall be
submitted to show that any light spillover onto adjacent residential properties is less than one-
half foot candle.
18. Owners and operators of underground storage tanks (USTs) at gas fueling stations are subject
to environmental rules and requirements designed to prevent underground petroleum releases
to surface and ground waters.
A. A “New Equipment Permit” or a “Modification to Permit or Application” must be filed
with the San Diego Air Pollution Control District (SDAPCD) and the Developer must obtain and secure the Authority to Construct and Permit to Operate.
• The specific SDAPCD rules that apply to the project are Rules 61.3, 61.3.1,
61.4, and 61.4.1, as it exists now or may be amended or supplemented.
• Gas fueling station operations are subject to the following National Emission
Standards for Hazardous Air Pollutants (NESHAP) and Air Toxic Control
Measures (ATCM): 1) National Emissions Standards for Hazardous Air
Pollutants for Source Category: Gasoline Dispensing Facilities; and 2) ATCM for
Retail Gasoline Dispensing Facilities.
B. The project is subject to California Code of Regulations (CCR) Title 22, Division 4.5,
Chapter 32 – General Standards for Tank Systems. The existing on-site USTs and
primary piping shall be managed as hazardous waste upon removal, unless such
facilities are cleaned on-site and certified by the appropriate County and/or State
representative as non-hazardous in accordance with hazardous waste regulations.
C. The Developer shall obtain any required permits and licenses from the County Health
Department prior to commencement of the use. The Developer shall maintain said
permits at all times while the use is operating.
D. Copies of all permits and licenses required by this condition shall be submitted to the
Community Development Department prior to commencement of the use.
19. The developer must install, monitor, operate, and calibrate all equipment in accordance with
all regulatory requirements.
Dec. 17, 2025 Item #1 17 of 174
20. If on-site soil excavation result in UST or UST piping removal and replacement and removal and
replacement will result in the need to export the excavated soil for disposal at an off-site
location, the Developer shall retain a qualified environmental professional to characterize the
excavated soil as a waste to determine an appropriate disposal facility and obtain their
acceptance of the soil. The qualified environmental professional shall oversee the loading,
transportation, and disposal of the soil including retaining copies of transportation and disposal
documentation (i.e., waste manifests and landfill weigh tickets, respectively). The qualified
environmental professional shall also prepare a report summarizing the methodology of soil
waste characterization, results of the characterization, and describing the loading,
transportation, and disposal of the soil. The report shall be submitted to the County Health
Department and City Planner for review and approval.
21. The Developer shall prepare an improvement plan and shall identify on the plans all
improvements necessary to implement the project and its conditions. The improvement plan
will be reviewed for compliance with the Carlsbad Municipal Code and any applicable
engineering standards, including but not limited to the on- and off-site improvements and
storm water control plan, to ensure the design conforms to all requirements of the relevant
regulations and codes. Approval of an improvement plan must be obtained and secured prior
to the issuance of a building permit to implement the project. In approving the improvement
plan, the City Engineer or designee may impose such conditions as may be reasonably necessary
to enable the City Engineer or designee to make the required determinations and to prevent
creation of a nuisance or unreasonable hazard to persons or to public or private property.
22. The following improvements must be shown in any improvement plan submitted and be
completed to the satisfaction of the City Engineer or designee prior to building permit final
inspection.
A. At the intersection of Palomar Airport Rd / Armada Dr / Costco Access the westbound
left-turn lane will be extended to accommodate the anticipated 95th percentile queue
lengths of up to 400 feet during the peak hours.
B. The implementation of bus stop benches, installed and maintained in accordance with
NCTD standards for new bench placement, design, and construction.
• Palomar Airport Road eastbound direction between Paseo del Norte and
Armada Drive (by Carl’s Junior); and
• Palomar Airport Road westbound direction east of Armada Drive (NE corner of
the intersection).
23. All improvements within the public right-of-way, including curb, gutter, sidewalks, driveways,
paving and utilities, shall be constructed in accordance with approved standards and/or plans
and shall comply with the standard plans and specifications of the City Engineer. Any damage
to street improvements done during construction on or adjacent to the subject property, shall
be repaired to the satisfaction of the City Engineer at the full expense of the Developer. This
shall include sidewalk repair, slurry seal, street reconstruction or others, as may be required by
the City Engineer or designee.
Dec. 17, 2025 Item #1 18 of 174
24. Operating Hours. There is no restriction on the hours of operation for gas fueling. To the
greatest extent possible, the delivery of fuel shall not be scheduled during weekday or weekend
peak demand periods to reduce onsite congestion.
Weekday and weekend peak demand periods are between 7:00 am and 9:00 am AND between
4:00 pm and 6:00 pm on weekdays, and between 11:00 am and 1:00 pm on Saturdays and
Sundays.
25. Air and water services are required pursuant to Section 13651 of the California Business and
Professions Code. The Property Owner shall install signage at a conspicuous place on, at, or near
the gas fuel dispensing apparatus, at lease on clearly visible sign to director motorists to free
air and water. Signage displayed to satisfy Section 13651 shall not count towards the overall
signage requirements for the gas fueling station.
26. Any signs proposed for this development shall at a minimum be designed in conformance with
the city’s Sign Ordinance and shall require review and approval of the City Planner prior to
installation of such signs.
27. A proposed queue management plan has been developed for the Carlsbad Costco fuel station
to implement as needed. The purpose of the queue management plan is to have a pre-approved
plan where Costco employees direct and monitor vehicle queues when queues extend beyond
the designated fuel station queue area and have the potential to impede other traffic flow.
A. Queue management is expected to involve up to three Costco fuel station employees, depending on the preference of the operator, to manage the location where members
line up to wait for an available fueling position and manage the space between vehicles.
During a typical workday, there are typically two trained employees onsite at all times.
If a queue management plan is fully implemented, additional staff from the warehouse
can assist.
B. At all times, during all hours the gas fueling station is open, a trained employee staffs
the fuel facility to manage incoming vehicles and direct members either to vacant
pumps or to the shortest individual queue behind the pumps.
C. When activity at the fuel facility is busier, typically between 3:30 pm and 6:30 pm on
weekdays, and between 10:30 am and 1:30 pm on weekends, when site conditions
warrant, a second trained employee staffs the fuel facility to provide more targeted
management of the queues. This person guides members to move forward and keep
vehicles closely spaced end-to-end, thereby maximizing the use of the queue storage
area. (The fuel facility queue area is located from the pumps entrance to the internal
driveway along the eastern boundary of the site.)
D. If the number of members arriving to purchase fuel causes queues behind the pumps is
nearing its capacity to exceed the queue storage area (30 or more vehicles in the gas
fueling station queue area), Costco shall implement a temporary queue management
plan to maintain queues on-site without impacting other businesses or public street
operations. The temporary queue management plan is depicted in Appendix F to Exhibit
5 of the Dec. 17, 2025, Planning Commission Staff Report, which is incorporated herein
Dec. 17, 2025 Item #1 19 of 174
by this reference as though fully set forth herein. A third employee must assist with
directing traffic to the relocated queue.
When queues at the internal intersection of Costco Access / Palomar Place Shopping
Center Access are excessive and affect other driveways such as north-south driveways,
one Costco gas attendant may be located at the gas fueling station egress point to
encourage vehicles to exit to the south and away from the Palomar Place Shopping
Center roadway.
28. If, at any time, the City Council, Planning Commission or City Planner determines that there has
been, or may be, a violation of the findings or conditions of this conditional use permit, or of
the Carlsbad Municipal Code regulations, a public hearing may be held before the City Council
to review this permit. At said hearing, the City Council may add additional conditions,
recommend additional enforcement actions, or revoke the permit entirely, as necessary to
ensure compliance with the Carlsbad Municipal Code and the intent and purposes of the
Commercial/Visitor-Serving Overlay Zone, and to provide for the health, safety and general
welfare of the city.
Engineering:
NOTE: Unless specifically stated in the condition, all of the following conditions, upon the approval
of this proposed development, must be met prior to approval of a building or grading permit whichever
occurs first.
General
29. Prior to hauling dirt or construction materials to or from any proposed construction site within
this project, developer shall apply for and obtain approval from, the city engineer for the proposed
haul route.
30. This project is approved upon the express condition that building permits will not be issued for
the development of the subject property, unless the district engineer has determined that
adequate water and sewer facilities are available at the time of permit issuance and will continue
to be available until time of occupancy.
31. Developer shall submit to the city engineer written approval from North County Transit District
(NCTD) demonstrating mass-transit improvement requirements for this project have been
satisfied. (Refer to condition no. 22.B for a list of the requirements.)
32. The project is conditioned to submit a Final TDM plan to the satisfaction of the City Engineer and
subject to implementing the TDM plan prior to final inspection. Prior to building permit issuance
developer shall show all transportation demand management infrastructure measures on the
building plans.
Dec. 17, 2025 Item #1 20 of 174
Fees/Agreements
33. Developer shall cause property owner to execute and submit to the city engineer for recordation,
the city’s standard form Geologic Failure Hold Harmless Agreement.
34. Developer shall cause property owner to execute and submit to the city engineer for recordation
the city’s standard form Drainage Hold Harmless Agreement.
35. Developer shall cause property owner to submit an executed copy to the city engineer for
recordation a city standard Permanent Stormwater Quality Best Management Practice
Maintenance Agreement.
36. Developer shall cause property owner to apply for, execute, and submit, to the city engineer for
recordation, an Encroachment Agreement covering private storm drain located over existing
easements as shown on the site plan. Developer shall pay processing fees per the city’s latest fee
schedule.
37. Developer shall implement all Transportation Demand Management strategies per the project’s
Transportation Demand Management Plan.
38. Prior to building permit issuance, the Developer shall have a consultation with city staff regarding
submittal of the final Transportation Demand Management Plan.
39. Prior to occupancy, the Developer shall submit a final Transportation Demand Management Plan
to the satisfaction of the City Engineer.
40. Prior to occupancy, the developer shall install transportation demand management infrastructure
measures, in accordance with the project’s Transportation Demand Management Plan, as shown
on the site plan, to the satisfaction of the City Engineer.
Grading
41. Based upon a review of the proposed grading and the grading quantities shown on the site plan,
a grading permit for this project is required. Developer shall prepare and submit plans and
technical studies/reports as required by city engineer, post security and pay all applicable grading
plan review and permit fees per the city’s latest fee schedule.
Storm Water Quality
42. Developer shall comply with the city's Stormwater Regulations, latest version, and shall
implement best management practices at all times. Best management practices include but are
not limited to pollution control practices or devices, erosion control to prevent silt runoff during
construction, general housekeeping practices, pollution prevention and educational practices,
maintenance procedures, and other management practices or devices to prevent or reduce the
discharge of pollutants to stormwater, receiving water or stormwater conveyance system to the
maximum extent practicable. Developer shall notify prospective owners and tenants of the above
requirements.
Dec. 17, 2025 Item #1 21 of 174
43.Developer shall submit for city approval a Tier 3 Storm Water Pollution Prevention Plan (TIER 3
SWPPP). The TIER 3 SWPPP shall comply with current requirements and provisions established
by the San Diego Regional Water Quality Control Board and City of Carlsbad Requirements. The
TIER 3 SWPPP shall identify and incorporate measures to reduce storm water pollutant runoff
during construction of the project to the maximum extent practicable. Developer shall pay all
applicable SWPPP plan review and inspection fees per the city’s latest fee schedule.
44.This project is subject to ‘Priority Development Project’ requirements and trash capture
requirements. Developer shall prepare an addendum to the Existing Storm Water Quality
Management Plan (SWQMP) for the Costco Carlsbad Gas Expansion prepared by Fuscoe
Engineering, subject to city engineer approval, to comply with the Carlsbad BMP Design Manual
latest version. The final SWQMP required by this condition shall be reviewed and approved by the
city engineer with final grading plans. Developer shall pay all applicable SWQMP plan review and
inspection fees per the city’s latest fee schedule.
45.Developer is responsible to ensure that all final design plans (grading plans, improvement plans,
landscape plans, building plans, etc) incorporate all source control, site design, pollutant control
BMP and applicable hydromodification measures.
Dedications/Improvements
46.Developer shall design the private drainage systems, as shown on the site plan to the satisfaction
of the city engineer. All private drainage systems (12” diameter storm drain and larger) shall be
inspected by the city. Developer shall pay the standard improvement plan check and inspection
fees for private drainage systems.
47.Prior to any work in city right-of-way or public easements, Developer shall apply for and obtain a
right-of-way permit to the satisfaction of the city engineer.
Utilities
48.Developer shall meet with the fire marshal to determine if fire protection measures (fire flows,
fire hydrant locations, building sprinklers) are required to serve the project
Dec. 17, 2025 Item #1 22 of 174
Exhibit 2
Dec. 17, 2025 Item #1 24 of 174
Exhibit 3
Costco Wholesale Project History
The Costco Wholesale center site has been reviewed by the Planning Commission/City Council at
different times throughout the years to expand or revise the current Costco Wholesale commercial
development.
First was the original approval in May 1991, which included the 121,000 square foot Price Club building
and associated parking and loading areas, a graded pad on Paseo del Norte for a future 15,000 square
foot office building, and a graded pad on Palomar Airport Road for a future 5,000 square foot retail
building (Planning Commission Resolution No. 3209, City Council Resolution No. 91-153).
In April 1996, the Costco Wholesale received a Site Development Plan Amendment to add 12,200 square
feet of interior space to the existing warehouse for meat and deli preparation, bakery, and additional
sales display areas (Planning Commission Resolution No. 3913).
In March 1997, the Planning Commission approved a boundary adjustment to the western portion of
the site to facilitate the design of the adjacent Carl's Jr. project (Planning Commission Resolution No.
4062).
In October 1997, the City Council approved amendments to allow the construction of a member-only,
automated fueling station with three pump islands with six dispensers and an overhead canopy in the
northeastern portion of the existing parking lot (Planning Commission Resolution No. 4143, City Council
Resolution No. 97-648).
Shortly after that approval, in Jan. 1998, the City Council approved an amendment to the Costco
Conditional Use Permit to allow the placement of up to 30 outdoor tables for use by food service
patrons (Planning Commission Resolution No. 4209, City Council Resolution No. 98-8).
In Sept. 2000, the City Council approved a 19,371-square-foot expansion to the existing warehouse,
including expanded retail and food service areas, and a new receiving area; and an expansion of the gas
station through the addition of another pump island with two dispensers and an extension of the
overhead canopy over the new island (Planning Commission Resolution No. 4792, City Council
Resolution No. 2000-289). At this point, the approvals allowed eight fuel pumps, 16 vehicle fueling
positions, and a 3,136 square foot canopy.
As noted previously, at the time that SDP 90-05 was approved for the center, it was anticipated that a
1.75-acre site at the northeast corner would be developed with a 5,000 square foot retail building.
Construction of an Oscar's restaurant on a 1.75-acre pad within the Costco center was approved in June
2000, by Planning Commission Resolution No. 4781 and City Council Resolution No 2000-245. The
approvals allowed a 5,250 square foot restaurant with 1,800 square feet of outdoor dining.
In Dec. 2012, the City Council approved a Conditional Use Permit and Coastal Development Permit to
allow for a 2,816-square-foot expansion to an existing 5,264-square-foot commercial building formerly
occupied by Pat & Oscar’s and allow the construction of a new freestanding commercial building (7,621
square feet) located within the Costco Wholesale center (Planning Commission No. 6921, City Council
Resolution No. 2012-265).
Dec. 17, 2025 Item #1 25 of 174
Exhibit 3
In 2013, Costco Wholesale received approval to demolish 1,240 square feet of existing cooler area, add
2,324 square feet of new cooler area, and 1,813 square feet of new receiving area to the existing 148,231-
square-foot Costco Wholesale warehouse (Planning Commission Resolution No. 7015, City Council
Resolution No. 2013-270).
In July 2014, the City Council approved a request to add three new fuel pumps, six new dispensers, and a
2,080-squre-foot gas station canopy addition (Planning Commission No. 7049, City Council Resolution No.
2014-191). With the approvals, the gas station was permitted to have eleven (11) pumps, 22 vehicle
fueling positions, and a 5,216 square foot canopy.
Dec. 17, 2025 Item #1 26 of 174
PROJECT ANALYSIS Exhibit 4
(GENERAL PLAN, MUNICIPAL CODE, AND OTHER REGULATIONS)
PROJECT ANALYSIS
Costco Wholesale, Inc. is requesting approval of a Conditional Use Permit Amendment, Site
Development Plan Amendment, and Coastal Development Permit Amendment to allow the construction
(expansion) and continued operation of an automated gasoline station at their existing site on Palomar
Airport Road and Armada Drive.
The project is subject to the following regulations:
A. Site Development Plan (CMC Chapter 21.06).
B. General Commercial Zone (C-2, CMC Chapter 21.28) and Commercial Visitor Serving Overlay Zone
(CMC 21.208)
C. Conditional Use Permits (CMC Chapter 21.42).
D. Coastal Development Procedures of the Local Coastal Program (CMC Chapter 21.201); and Coastal
Resource Protection Overlay Zone (CMC Chapter 21.203).
E. Growth Management Ordinance (CMC Chapter 21.90) and Local Facilities Management Plan Zone 5.
The recommendation for approval of this project was developed by analyzing the project’s consistency
with the applicable regulations and policies. The project’s compliance with each of the above regulations
is discussed in detail within the sections below.
A. Site Development Plan (CMC Chapter 21.06)
The project site is located within a Qualified Development Overlay (Q) Zone and no building permit or
other entitlement shall be issued for any use in the Q zone unless there is a valid site development plan
approved for the property. The Qualified Development Overlay zone does not contain any specific
development standards but does allow the Planning Commission to increase any standards or impose
special conditions that may be deemed necessary. The Costco warehouse site has been reviewed by the
Planning Commission/City Council at different times throughout the years (Exhibit 3 to the Dec. 17, 2025
Planning Commission Staff Report). The existing gas fueling station was approved by SDP 90- 05(C).
There have been several subsequent amendments to the SDP and the amended SDP, the latest
occurring in July 2014, when the City Council approved a request to add three new fuel pumps, six new
dispensers, and a 2,080-squre-foot gas station canopy addition (Planning Commission No. 7049, City
Council Resolution No. 2014-191). With the approvals, the gas station has eleven (11) pumps, twenty-
two (22) vehicle fueling positions, and a 5,216 square foot canopy. The details of the request include the
on-site expansion of the facility to a total of thirty (30) vehicle fueling positions and add 3,719 square
feet to a 5,874-square-foot canopy. The approval of the subject application will reconcile and correct the
discrepancy of the existing canopy’s size (5,216 square feet approved versus 5,874 square feet shown on
the application).
Earthwork would consist of 70 cubic yards of cut, 640 yards of fill, 500 yards for tank excavation, 140 yards
for storm drain tank excavation, and 50 yards of export materials.
The gas fueling station was conditionally approved to provide additional landscaping upon completion of
the canopy if necessary to augment the existing screening of the landscaped berm and parking lot
landscaping. The location of the addition will not disrupt the existing vehicular circulation on the site in
that it is in-line with existing driveways. Additional queuing is provided east of the existing and proposed
Dec. 17, 2025 Item #1 27 of 174
PROJECT ANALYSIS
(GENERAL PLAN, MUNICIPAL CODE, AND OTHER REGULATIONS)
fuel pumps. Additional vehicle fueling positions would better serve peak period demand and reduce
peak period queuing, wait times, and idling. The gas fueling stations remains in the northeast corner the
property so as to not produce any on-site parking or circulation impacts ancillary to the regional
commercial use of the Costco warehouse, is adequately screened from public views and does not
produce excessive light, noise, or dust that would impact residences. The Costco property is separated
by 650 feet from the nearest residential use.
The Costco warehouse will continue to provide convenient and safe access to goods desired by the
community, and the proposed fuel pumps and canopy additions are components of a retail use that is
permitted in the C-2-Q Zone. The architecture of the addition is the same as the existing fueling station.
Kittelson & Associates, Inc. prepared a transportation study for the project to forecast, describe, and
analyze the effect of the expansion on existing and future circulation infrastructure. The study
concluded that the intersection of Palomar Airport Road / Armada Drive – Costco access would continue
to operate similar to existing conditions. However, the project would be required to extend the
westbound left-turn movement storage length at the intersection. The modification would be funded,
designed and constructed by the applicant. For site access and circulation, it is estimated that the
average vehicle queues in the gas station area would be contained within the queue area. Kittelson’s
report reviewed before and after data from other comparable Costco fuel station expansion sites to
determine a representative relationship between queues and the addition of fueling positions to an
existing fuel station While there is an anticipated increase in trips expected with the fuel station
expansion project, other similar expansion projects showed that increase in fueling capacity is greatly
outweighed by the benefits of providing more pumps to expedite the processing of vehicles during peak
times. All prior Costco expansion locations were found to have more efficient processing of vehicles,
shorter wait times, shorter queues, and less idling after expansion. A proposed queue management plan
has been developed for the Carlsbad Costco fuel station to implement as needed.
B. General Commercial Zone (C-2, CMC Chapter 21.28) Commercial Visitor Serving Overlay Zone (CMC
Chapter 21.208)
The Costco Warehouse property is zoned C-2-Q and therefore subject to the provision of those
zoning designations. The restrictions contained in the C-2 General Commercial Zone deal mostly
with uses, however there are standards regarding building height and placement on the lot. The
maximum building height allowed in the C-2 Zone is 35 feet to the peak of the roof while the
proposed gas station canopy measures only 17.5 feet to the top of the roof. The building
placement standards in the C-2 Zone apply only when the property is adjacent to residential
property, which is not the case for the proposed gas fueling station expansion. Costco entrance
and the Costco property is separated by 650 feet from the nearest residential use.
Pursuant to CMC Section 21.28.020 – Limitations on Permitted Uses – All uses shall be conducted
wholly within a building except such uses as gasoline stations, electrical transformer substations,
horticultural nurseries and other enterprises customarily conducted in the open. Therefore, the
project complies with the limitations on permitted uses of the C-2 Zone.
The existing Costco Warehouse was built prior to the adoption of the Commercial Visitor Serving
Overlay Zone in 1999 (gas fueling station was built in 1997). Pursuant to code, “new gas stations”
or “gas stations/mini marts” are only permitted at intersections where at least one of the streets is
Dec. 17, 2025 Item #1 28 of 174
PROJECT ANALYSIS
(GENERAL PLAN, MUNICIPAL CODE, AND OTHER REGULATIONS)
classified as a prime, major or secondary arterial on the general plan. Because the gas fueling
station is an existing facility, it is not subject to this standard. Commercial/visitor-serving uses
which require a conditional use permit in the underlying zone may be permitted within the overlay
zone by approval of a minor conditional use permit pursuant Chapter CMC 21.208. The project
complies with all applicable Commercial/Visitor-Serving Overlay development and design
standards as shown in the table.
Table 1: General Commercial Zone Compliance
Standard Maximum/Minimum Provided Compliance
Building Height 35 feet Canopy: 17.5 feet Yes
Setbacks None Required N/A N/A
Table 2: Commercial Visitor Serving Overlay Zone Compliance
Standard Maximum/Minimum Provided Compliance
Building Height 35 feet maximum Canopy: 17.5 feet Yes
Parking:
Existing warehouse
(152,433 square feet)
and 5,216-square-foot
canopy
Canopy expansion
507 spaces for existing
use
+ 15 spaces for the
project3
745 spaces
Yes
Palomar Airport Road
Setback2
50 feet minimum 330 feet Yes
Side setback
Rear setback
10 feet minimum 130 feet
195 feet Yes
Building Materials per
Discretionary Approval
TBD The canopy addition
uses the same
materials and color as
existing canopy.
Yes
1 A minimum of one space/two hundred square feet of gross center is required for shopping center use.
Gas fueling stations are one space/three hundred square feet of gross floor area plus three additional
employee parking spaces.
2 All setback areas shall be exclusive of parking spaces, parking overhang, circulation aisles and trash
enclosures.
3 The amount of parking required by the Parking Ordinance (Chapter 21.44 of the Zoning Ordinance) for
the entire Costco operation, including warehouse, retail, food service and office was 507 spaces
according to the latest site analysis (approved by City Council Resolution No. 2014-191). The project
proposes a 3,719-square-foot canopy expansion and reconciling 658 square feet of existing canopy from
Dec. 17, 2025 Item #1 29 of 174
PROJECT ANALYSIS
(GENERAL PLAN, MUNICIPAL CODE, AND OTHER REGULATIONS)
prior approvals. (The details of the request include a 3,719-square-foot expansion to a 5,874-square-
foot canopy; however, only 5,216 square feet were approved.) Given all of these factors, the project is
required to accommodate an additional 14.59 parking spaces (15 rounded up). A total of 745 spaces are
provided.
The addition is desirable for the community since the additional fuel pumps will provide better access to
fuel. In addition, the 3,719-square-foot canopy addition is located entirely within or adjacent to a
disturbed and constructed footprint established by the existing gas fueling station and will not create
significant impacts that would be detrimental to existing or other uses permitted in the vicinity. The gas
station facility and Costco warehouse were designed to accommodate a large volume of customers
including surplus parking.
C. Conditional Use Permit (CMC 21.42)
The approval of a conditional use permit is not a change of a zoning district, but rather a project-specific
change in the uses allowed on a specific property. Conditional use permits do not involve the
establishment of new codes, regulations, or policies. Instead, a conditional use permit applies to the
provisions of the zoning ordinance and its standards to the specific set of circumstances which
characterize the proposed land use.
As a rule, conditional use permits do not authorize uses that the zoning ordinance does not authorize,
nor uses not expressly authorized by the permit. In accordance with the CMC, permitted uses and
conditionally permitted uses in the C-2-Q Zone are the commercial/visitor-serving uses authorized as
permitted uses or conditionally permitted uses by the underlying zone. Those uses shall be developed
subject to the development standards and entitlement process required by the underlying zoning.
Written "findings of fact" are required in order to support the decision of the hearing body to approve
or deny a conditional use permit.
1. That the requested use is necessary or desirable for the development of the community, is in
harmony with the various elements and objectives of the general plan, in that the amended
project design will increase the functionality and flow of the site by better serving peak period
demand and reducing peak period queuing, wait times, and idling. The average gas queues, and
the weekday AM and Saturday peak hour 95th percentile queues will be contained within the
queue area. During the PM peak hour the 95th percentile queue may spill outside the gas queue
area. A proposed queue management plan has been developed for the Carlsbad Costco fuel
station to implement as needed.
The Costco warehouse will continue to provide convenient and safe access to goods desired by
the community, and that the proposed fuel pumps and canopy additions are consistent with the
General Plan, C-2-Q Zone, Commercial Visitor Serving Overlay Zone, and Local Coastal Program.
2. That the requested use is not detrimental to existing uses or to uses specifically permitted in the
zone in which the proposed use is to be located in that the General Commercial – Qualified Zone
(C-2-Q Zone) allows for shopping centers with anchor and secondary tenants that are region-
serving, as well as mixed use, including uses similar to those existing and proposed. The project
site is developed with a Costco warehouse, and an existing commercial fuel dispensing station
Dec. 17, 2025 Item #1 30 of 174
PROJECT ANALYSIS
(GENERAL PLAN, MUNICIPAL CODE, AND OTHER REGULATIONS)
use, with twenty-two (22) vehicle fueling positions located on the east side of the property.
The Costco warehouse will continue to provide convenient and safe access to goods desired by
the community, and the proposed fuel pumps and canopy additions are components of a retail
use that is permitted in the C-2-Zone.
The surrounding properties are also located within the C-2-Q Zone, Open Space (OS Zone),
Residential Density Multiple Zone (RD-M Zone), Office Zone (O Zone), and Commercial Tourist
Qualified Zone (C-T-Q Zone). There is a retail building that includes fast-food and small retail shops
located just north of the fueling facility before reaching Palomar Airport Road. East and south of
the Costco site are open space areas and west of the site are developed with office, retail, and
restaurant uses. The on-site expansion of the gas fueling station would maintain the existing fuel
station location and expand the facility to a total of thirty (30) vehicle fueling positions to better
serve peak period demand and reduce peak period queuing, wait times, and idling. The proposed
project would not be detrimental to the existing uses or uses specifically permitted in the various
zones because the use is existing, membership based, and would not significantly change the
number of users accessing the property. The project would be conditioned to utilize
transportation demand management strategies. Given the variety of the surrounding land uses
and the conditions of approval included in this resolution, the operation of the project would not
be detrimental to existing uses or uses permitted in the various zones.
3. That the site for the proposed conditional use is adequate in size and shape to accommodate the
yards, setbacks, walls, fences, parking, loading facilities, buffer areas, landscaping and other
development features prescribed in this code and required by the City Planner, planning
commission or City Council, in order to integrate the use with other uses in the neighborhood, in
that the project can be fit within the proposed development area without the need for any
development standard modifications. The project complies with all applicable development
standards (i.e. setbacks, lot coverage, and height restrictions) of the General Commercial –
Qualified Zone (C-2-Q) and Commercial Visitor Serving Overlay Zone. Landscaping would be
provided consistent with the requirements of the city’s Landscape Manual and the Village & Barrio
Master Plan. A total of 570 square feet of new landscape bed is to be created, not including
demolished or remodeled landscaping.
The proposed use is located entirely within or adjacent to a disturbed and constructed building
footprint previously established by the existing fueling station, all required fencing, landscape
trees, and parking will remain in place and the proposed improvements are adequately screened
from public view in that they are located internal to the site near the main Costco entrance and
the Costco property is separated by 650 feet from the nearest residential use.
4. That the street system serving the proposed use is adequate to properly handle all traffic
generated by the proposed use, in that the on-site expansion would maintain the existing fuel
station location and expand from twenty-two (22) to thirty (30) vehicle fueling positions to better
serve peak period demand and reduce peak period queuing, wait times, and idling. The average
gas queues, and the weekday AM and Saturday peak hour 95th percentile queues will be
contained within the queue area. During the PM peak hour the 95th percentile queue may spill
outside the gas queue area. A proposed queue management plan has been developed for the
Dec. 17, 2025 Item #1 31 of 174
PROJECT ANALYSIS
(GENERAL PLAN, MUNICIPAL CODE, AND OTHER REGULATIONS)
Carlsbad Costco fuel station to implement as needed.
The project would add more than 11 peak hour trips and 110 daily trips to Palomar Airport Road,
which is an “exempt road segment” in the City of Carlsbad Geneal Plan Mobility Element. Per the
City’s Mobility Element Policy 3-P.11, the project would be subject to implementing a TDM plan
and TSM strategies, as conditioned. The intersection of Palomar Airport Road / Armada Drive-
Costco Access would continue to operate similar to existing conditions. The average queue
lengths at this intersection would be within the available storage. The westbound left-turn
movement 95th percentile queue currently exceeds the storage length and would increase up to
60 feet during weekday PM and Saturday midday peak times. The left-turn lane could be extended
by 110 feet by modifying the raised median to capture existing and anticipated increases in 95th
percentile left-turn queue lengths, which are estimated to need 400 feet of storage.
Transit MMLOS along the project frontage on Palomar Airport Road was found to be below LOS
standard for transit users. Therefore, the project would be responsible for the implementation of
benches at the following bus stops: 1) Palomar Airport Road eastbound direction between Paseo
del Norte and Armada Drive (by Carl’s Junior); and 2) Palomar Airport Road westbound direction
east of Armada Drive (NE corner of the intersection).
D. Coastal Development Procedures for the Mello II Segment of the Local Coastal Program (CMC
Chapter 21.201); and Coastal Resource Protection Overlay Zone (CMC Chapter 21.203).
The project site is not located within the Mello II Segment of the Coastal Zone of the Local Coastal
Program (LCP). The site is located within and subject to the Coastal Resources Protection Overlay Zone
(Chapter 21.203). The project’s compliance with each of these programs and ordinances is discussed
below:
1. Mello II Segment of the Certified Local Coastal Program and all applicable policies.
The Costco warehouse site lies within the Mello II segment of the city's Coastal Zone and is subject to
the corresponding land use policies and implementing ordinances. These policies and ordinances
emphasize topics such as preservation of agriculture and scenic resources, protection of
environmentally sensitive resources, provision of shoreline access, and prevention of geologic instability
and erosion. The project site has an LCP Land Use designation of Regional Commercial (R) and Zoning of
C-2-Q and Commercial Visitor Serving Overlay Zone which are consistent with the city's General Plan and
Zoning. The proposed project, which includes an addition to the existing gas fueling station, is consistent
with the relevant policies of the Mello II Segment of the Local Coastal Program, the Coastal Program
implementing ordinance (Zoning Ordinance), and the Coastal Resource Protection Overlay Zone. The
project is consistent with the surrounding development, which includes commercial uses and open
space uses. The proposed addition will not obstruct views of the coastline as seen from public lands or
the public right-of-way nor otherwise damage the visual beauty of the coastal zone. No agricultural uses
currently exist on the developed site, nor are there any sensitive resources located in the area of the
proposed addition. In addition, the proposed addition is not located in an area of known geologic
instability or flood hazards. Since the site does not have frontage along the coastline, no public
Dec. 17, 2025 Item #1 32 of 174
PROJECT ANALYSIS
(GENERAL PLAN, MUNICIPAL CODE, AND OTHER REGULATIONS)
opportunities for coastal shoreline access are available from the subject site. Furthermore, the
commercially-designated site is not suited for water-oriented recreation activities. No scenic resources
exist on or near the topographically depressed site. Therefore, the gas fueling expansion project is
consistent with the Mello II land use policies and the applicable implementing ordinances.
2. Coastal Resource Protection Overlay Zone
The Project is consistent with the provisions of the Coastal Resource Protection Overlay Zone (CMC
Chapter 21.203 of the Zoning Ordinance) in that it will adhere to the city’s Master Drainage Plan,
Grading Ordinance, Storm Water Ordinance, BMP Design Manual and Jurisdictional Runoff Management
Program (JRMP) to avoid increased urban run-off, pollutants, and soil erosion. The project site also does
not include steep slopes (equal to or greater than 25% gradient) or native vegetation; and, is not located
in an area prone to landslides, or susceptible to accelerated erosion, floods, or liquefaction.
A. GROWTH MANAGEMENT
The proposed project is located within Local Facilities Management Zone (LFMZ) 5 in the Southwest
Quadrant of the city. LFMZ 5 was adopted in Jan. 1987. Since this Zone plan is a regulatory document,
each facility section also contains conditions to ensure that public facilities will conform to the adopted
performance standards, regulating future development within the zone. It should be noted that some of
the performance standards for public facilities in the Citywide Growth Management Program are based
on residential population and are not applicable to Zone 5, so the LFMZ identifies it as excluded from the
analysis (noted as “Not applicable”).
The impacts on public facilities created by the project, and its compliance with the adopted performance
standards, are summarized in Table “3” below.
TABLE 3 – GROWTH MANAGEMENT COMPLIANCE
Standard Impacts/Demand
City Administration Not applicable per the LFMZ.
Library Not applicable per the LFMZ.
Wastewater Treatment Not applicable – existing facilities meet the adopted performance
standard per the LFMZ.
Parks Not applicable - Zone 5 does not impact the adopted performance
standard because it is based upon residential development.
Drainage
Not applicable - Zone 5 complies with the adopted performance
standard. The drainage section does highlight items in sub-basins 11 and
13 which will be required when individual projects are proposed in those
areas of the Zone. This project is not located in sub-basins 11 and 13.
Circulation
At the time the LFMZ was prepared, all intersections and road segments
within Zone 5, or impacted by Zone 5 traffic meet the adopted
performance standard. With the existing plus committed traffic impacts,
seven intersections and two road segments were noted to fall below the
adopted performance standard. At buildout, nine intersections were
projected to fall below the city's adopted performance standard unless
mitigating improvements beyond those required under the current
Dec. 17, 2025 Item #1 33 of 174
PROJECT ANALYSIS
(GENERAL PLAN, MUNICIPAL CODE, AND OTHER REGULATIONS)
Standard Impacts/Demand
circulation element were installed. Since then, all build-out conditions
have been satisfied.
The project would add more than 11 peak hour trips and 110 daily trips
to Palomar Airport Road, which is an “exempt road segment” in the City
of Carlsbad Geneal Plan Mobility Element. Per the City’s Mobility
Element Policy 3-P.11, the project would be subject to implementing a
TDM plan and TSM strategies, as conditioned.
Fire Not applicable – Fire Station No. 5 was constructed.
Open Space
Not applicable - The Citywide Facilities and Improvements Plan as
adopted by the City Council in September 1981 indicated this Zone did
not have to address Open space in the local plan.
Schools Not applicable - Existing school facilities currently have the capacity to
meet the anticipated demand generated by Zone 5,
Sewer Collection System
Not applicable - At the time the LFMZ was prepared, sewer service met
the performance standard. Since then, short- and long-term capacity
was developed to accommodate additional growth. The project does not
contribute additional EDUs to the system.
Water Not applicable - water service to Zone 5 meets the adopted performance
standards to the buildout of the Zone.
Dec. 17, 2025 Item #1 34 of 174
CARLSBAD COSTCO
FUEL STATION EXPANSION
TRANSPORTATION IMPACT STUDY
August 14, 2025
951 PALOMAR AIRPORT ROAD, CARLSBAD, CA
Exhibit 5
Dec. 17, 2025 Item #1 35 of 174
Orange, California
Inside front cover
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Dec. 17, 2025 Item #1 36 of 174
Carlsbad Costco
Fuel Station Expansion Project
Transportation Impact Study
951 Palomar Airport Road, City of
Carlsbad
Prepared for:
Costco Wholesale
999 Lake Drive
Issaquah, WA 98027
Prepared by:
Kittelson & Associates, Inc.
750 The City Drive, Suite 410
Orange, CA 92868
714.468.1997
Fernando Sotelo, TE
Principal Engineer
Mychal Loomis, PE, TE, PTOE, RSP
Principal Engineer
Chris Brehmer
Senior Principal
Karen Phan, AICP
Becca Hoffman
Transportation Analysts
Project Number 27538
August 14, 2025
Dec. 17, 2025 Item #1 37 of 174
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Dec. 17, 2025 Item #1 38 of 174
CONTENTS
Executive Summary ................................................................................................................ ii
Introduction ............................................................................................................................. 2
Purpose and Objectives ..................................................................................................... 2
Project Description .............................................................................................................. 2
Existing Transportation Network ............................................................................................. 6
Roadway Network .............................................................................................................. 6
Existing Bicycle Facilities ...................................................................................................... 7
Existing Pedestrian Conditions............................................................................................ 7
Existing Transit Service ......................................................................................................... 7
Study Area ........................................................................................................................... 8
Existing Traffic Volumes ....................................................................................................... 8
Analysis Methodology & Evaluation Criteria ...................................................................... 11
Traffic Operations Analysis ................................................................................................... 15
Existing Conditions ............................................................................................................. 15
Project Trip Generation, Distribution, and Assignment .................................................. 16
Trip Distribution Pattern & Trip Assignment ...................................................................... 23
Existing Plus Project Conditions ........................................................................................ 31
Transit MMLOS Evaluation .................................................................................................... 36
Site Access and Circulation ................................................................................................. 38
Site Access ......................................................................................................................... 38
Fuel Station Queues .......................................................................................................... 38
Queue Management Plan ............................................................................................... 41
Findings & Recommendations ............................................................................................ 47
Dec. 17, 2025 Item #1 39 of 174
Carlsbad Costco Fuel Station Expansion Transportation Impact Study List of Tables
August 14, 2025
Kittelson & Associates, Inc. Page 6
LIST OF TABLES
Table 1 – Existing Transit Service .................................................................................................................................. 7
Table 2 – General Level of Service Definitions ........................................................................................................ 11
Table 3 – Level of Service Definition for Intersections ............................................................................................. 12
Table 4 – Level of Service Definition for MMLOS ..................................................................................................... 13
Table 5 – Existing Conditions Intersection Operations ............................................................................................ 15
Table 6 – Existing Queuing at Intersections ............................................................................................................. 16
Table 7 – Weekday AM Peak Hour Trip Growth ...................................................................................................... 17
Table 8 – Weekday PM Peak Hour Trip Growth ...................................................................................................... 18
Table 9 – Saturday Midday Peak Hour Trip Growth ................................................................................................ 18
Table 10 – Weekday Daily Trip Growth .................................................................................................................... 18
Table 11 – Saturday Daily Trip Growth ..................................................................................................................... 18
Table 12 – Carlsbad Costco Fuel Expansion Trip Generation Estimate - Peak Hours .......................................... 21
Table 13 – Carlsbad Costco Fuel Expansion Trip Generation Estimate - Daily .................................................... 22
Table 14 – Existing Plus Project Intersection Operations ......................................................................................... 31
Table 15 – Existing Plus Project Queuing at Intersections ....................................................................................... 33
Table 16 – Existing Peak Hour Carlsbad Costco Fuel Station Queuing ................................................................. 39
Table 17 – Weekday AM Peak Hour Observed Queue - Before & After Data Summary ................................... 39
Table 18 – Weekday PM Peak Hour Observed Queue - Before & After Data Summary .................................... 40
Table 19 – Saturday Midday Peak Hour Observed Queue - Before & After Data Summary ............................. 40
Table 20 – Proposed Peak Hour Carlsbad Costco Fuel Station Queuing............................................................. 40
Dec. 17, 2025 Item #1 40 of 174
Carlsbad Costco Fuel Station Expansion Transportation Impact Study List of Figures
August 14, 2025
Kittelson & Associates, Inc. Page 7
LIST OF FIGURES
Figure 1 – Project Location.......................................................................................................................................... 3
Figure 2 – Proposed Site Plan ...................................................................................................................................... 4
Figure 3 – Study Intersections – Existing Lane Configurations, Traffic Control Devices, and Traffic Volumes ..... 9
Figure 4 – Trip Distribution: Inbound Traffic Patterns ............................................................................................... 24
Figure 5 – Trip Distribution: Outbound Traffic Patterns ............................................................................................ 25
Figure 6 – Net New Trip Ends – Peak Hours .............................................................................................................. 26
Figure 7 – Pass-By Trips – Peak Hours ........................................................................................................................ 27
Figure 8 – Site Generated Trip Assignment by Intersection – Peak Hours ............................................................. 28
Figure 9 – Site Generated Trip Assignment by Roadway Segment – Peak Hours ............................................... 29
Figure 10 – Site Generated Trip Assignment by Roadway Segment – Daily ........................................................ 30
Figure 11 – Existing Plus Project Traffic Volumes ...................................................................................................... 34
Figure 12 – Existing Weekday PM Peak Hour 95th Percentile Queue ..................................................................... 42
Figure 13 – Existing Saturday Midday Peak Hour 95th Percentile Queue .............................................................. 43
Figure 14 – Proposed Weekday PM Peak Hour 95th Percentile Queue ................................................................ 44
Figure 15 – Proposed Saturday Midday Peak Hour 95th Percentile Queue .......................................................... 45
Dec. 17, 2025 Item #1 41 of 174
Carlsbad Costco Fuel Station Expansion Transportation Impact Study Appendices
August 14, 2025
Kittelson & Associates, Inc. Page 8
APPENDICES
Appendix A: Scoping Agreement
Appendix B: Traffic Count Data
Appendix C: Existing Traffic Operations Worksheets
Appendix D: Existing Plus Project Traffic Operations Worksheets
Appendix E: Transit MMLOS Worksheets
Appendix F: Queue Management Plan
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Section 1 — Executive Summary
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Carlsbad Costco Fuel Station Expansion Transportation Impact Study Executive Summary
August 14, 2025
Kittelson & Associates, Inc. Page ii
EXECUTIVE SUMMARY
The Project proposes the expansion of an existing fuel station located within the Costco Warehouse
shopping area, located at 951 Palomar Airport Road in Carlsbad, California. The on-site expansion would
maintain the existing fuel station location and expand from twenty-two (22) to thirty (30) vehicle fueling
positions to better serve peak period demand and reduce peak period queuing, wait times, and idling.
STUDY COMPONENTS
This study evaluates the transportation system associated with the Project and has the following objectives:
Evaluation of vehicle delays and queues for intersections near the Project;
Evaluation of multi-modal level of service for transit along the Project frontage;
Assessment of the project site access, internal circulation, and queue lengths;
Review of Project compliance with existing City programs, plans, ordinances, and policies; and
Recommendations for changes to the circulation network associated with Project development.
The study includes the following evaluations to complete these objectives:
Intersection delay and queuing at the signalized Palomar Airport Road / Armada Drive-Costco
Access intersection and the stop-controlled Costco Access / Palomar Place Shopping Center
Access intersection for existing and existing plus project conditions. Weekday AM, weekday PM,
and Saturday midday peak times were analyzed using Synchro software.
Transit MMLOS for the project frontage along Palomar Airport Road.
Fuel station queue lengths for existing and existing plus project conditions
Site access and circulation.
FINDINGS
The following conclusions were made based on the evaluations performed in the study:
The intersection of Palomar Airport Road / Armada Drive-Costco Access will continue to operate
similar to existing conditions. The average queue lengths at this intersection would be within the
available storage. The westbound left-turn movement 95th percentile queue currently exceeds the
storage length and would increase up to 60 feet during weekday PM and Saturday midday peak
times. The left-turn lane could be extended by 110 feet by modifying the raised median to capture
existing and anticipated increases in 95th percentile left-turn queue lengths, which are estimated to
need 400 feet of storage.
The intersection of Costco Access / Palomar Place Shopping Center Access will experience longer
eastbound queues with the addition of the Project.
The average gas queues, and the weekday AM and Saturday peak hour 95th percentile queues
will be contained within the queue area. During the PM peak hour the 95th percentile queue may
spill outside the gas queue area. A proposed queue management plan has been developed for
the Carlsbad Costco fuel station to implement as needed.
Transit MMLOS along the project frontage on Palomar Airport Road was found to be below LOS
standard for transit users. Therefore, the project would be responsible for the implementation of
benches at the following bus stops:
o Palomar Airport Road eastbound direction between Paseo del Norte and Armada Drive
(by Carl’s Junior)
o Palomar Airport Road westbound direction east of Armada Drive (NE corner of the
intersection)
The project would add more than 11 peak hour trips and 110 daily trips to Palomar Airport Road,
which is an “exempt road segment” in the City of Carlsbad Geneal Plan Mobility Element. Per the
City’s Mobility Element Policy 3-P.11, the project will be subject to implementing a TDM plan and
TSM strategies:
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Carlsbad Costco Fuel Station Expansion Transportation Impact Study Executive Summary
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Kittelson & Associates, Inc. Page iii
o The TDM plan was prepared to encourage employees and patrons to shift from driving
alone to traveling by sustainable modes. The TDM plan for the project was prepared on
July 22, 2024 and approved by the City’s Community Development Department.
o The project will also extend the westbound left-turn movement storage length at the
intersection of Palomar Airport Rd / Armada Dr / Costco Access. The modification will be
funded, designed and constructed by the applicant in consultation with City of Carlsbad
Public Works and consistent with City’s requirements. This improvement will satisfy the TSM
requirement.
RECOMMENDATIONS
The following recommendations are made to improve circulation near the Project:
When queues at the internal intersection of Costco Access / Palomar Place Shopping Center
Access are excessive and affect other driveways such as north-south driveways, Costco gas
attendants can be located at the gas egress to encourage vehicles to exit to the south and away
from the Palomar Place Shopping Center roadway.
A queue management plan has been developed to address instances where abnormally long
queues form from the fuel station to reduce the impact on site circulation.
At the intersection of Palomar Airport Rd / Armada Dr / Costco Access the westbound left-turn
lane will be extended to accommodate the anticipated 95th percentile queue lengths of up to 400
feet during the peak hours. The modification will be funded, designed and constructed by the
applicant in consultation with City of Carlsbad Public Works and consistent with City’s
requirements.
Dec. 17, 2025 Item #1 45 of 174
Section 2 — Introduction
Dec. 17, 2025 Item #1 46 of 174
Carlsbad Costco Fuel Station Expansion Transportation Impact Study Introduction
August 14, 2025
Kittelson & Associates, Inc. Page 2
INTRODUCTION
PURPOSE AND OBJECTIVES
Kittelson & Associates, Inc. (Kittelson) prepared this transportation study for the Costco fuel station on-site
expansion project (“Project”) at the existing Costco warehouse on Palomar Airport Road in Carlsbad,
California. The purpose of the study is to forecast, describe, and analyze the effect of the expansion on
existing and future circulation infrastructure. This study was prepared in consultation with City of Carlsbad
(City) staff and consistent with the Carlsbad Transportation Impact Analysis Guidelines (“TIA Guidelines”)
dated April 2018 based on a scoping agreement documenting requirements for this specific Project. The
scope for this transportation analysis was developed based on the Project characteristics, location, and in
consultation with City of Carlsbad staff. A copy of the scoping agreement is included in Appendix A.
This study evaluates the transportation system associated with the Project and has the following objectives:
Evaluation of vehicle delays and queues for intersections near the Project;
Evaluation of multi-modal level of service for transit along the Project frontage;
Assessment of the project site access, internal circulation, and queue lengths;
Review of Project compliance with existing City programs, plans, ordinances, and policies; and
Recommendations for changes to the circulation network associated with Project development.
PROJECT DESCRIPTION
The Project proposes the expansion of an existing fuel station located within the Costco Warehouse
shopping area, located at 951 Palomar Airport Road in Carlsbad, California. The property is currently
developed with a Costco warehouse on the southwest corner and a twenty-two (22) vehicle fueling
position Costco Gasoline fuel station located on the east side of the property. There is a retail building that
includes fast-food and small retail shops located just north of the Costco before reaching Palomar Airport
Road. The on-site expansion would maintain the existing fuel station location and expand to a total of thirty
(30) vehicle fueling positions to better serve peak period demand and reduce peak period queuing, wait
times, and idling.
Figure 1 shows the Costco warehouse and fuel station location in the vicinity of Carlsbad, and Figure 2
depicts the Project site plan.
Dec. 17, 2025 Item #1 47 of 174
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PALOMAR AIRPORT ROAD
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Site Vicinity Map
Carlsbad, California 1
Carlsbad Costco Fuel Station Expansion October 2023
Figure
SITE
SAN DIEGO COUNTY
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Proposed Detailed Site Plan
Carlsbad, California 2
Carlsbad Costco Fuel Station Expansion October 2023
Figure
Received from Barghausen Consulting Engineers, Inc. on behalf of Costco: Sept 2023
Dec. 17, 2025 Item #1 49 of 174
Section 3 — Existing
Transportation Network
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Carlsbad Costco Fuel Station Expansion Transportation Impact Study Existing Transportation Network
August 14, 2025
Kittelson & Associates, Inc. Page 6
EXISTING TRANSPORTATION NETWORK
ROADWAY NETWORK
The existing roadway network descriptions are organized by the street typologies identified in the TIA
Guidelines and the City’s Mobility Element1.
ARTERIAL STREETS
Palomar Airport Road is an east-west arterial that runs from Carlsbad Boulevard to the eastern end of the
City and continuing into the City of San Marcos. Within the vicinity of the Project, Palomar Airport Road has:
a speed limit of 45 miles per hour;
three eastbound travel lanes and three or four westbound travel plus turn lanes at signalized
intersections;
No on-street parking;
Bicycle lanes;
Sidewalks and marked crosswalks at signalized intersections.
The section between Interstate 5 and College Boulevard, which includes the Project frontage, is exempt
from vehicle LOS standards as described in Mobility Element Policy 3-P.10. The main access point for the
Project is the signalized intersection with Armada Drive. There is also a right-in, right-out only access about
halfway between Paseo del Norte and Armada Drive that is on the western side of the Costco property
that also serves adjacent retail.
INDUSTRIAL STREETS
Armada Drive is a north-south industrial street that connects Legoland Drive to the north with Palomar
Airport Road to the south, terminating to the south within the Project site as the main access to the Project.
Within the vicinity of the Project, Armada Drive has:
a speed limit of 40 miles per hour;
two northbound and southbound travel lanes plus turn lanes at the signalized intersection with
Palomar Airport Road;
No on-street parking;
Bicycle lanes;
Sidewalks and marked crosswalks.
The main access point for the Project from Armada Drive is the signalized intersection with Palomar Airport
Drive.
NEIGHBORHOOD CONNECTOR STREETS
Paseo del Norte is a four-lane north-south neighborhood connector street that connects Cannon Road to
the north with Poinsettia Lane to the south. There is no access to the Project site from Paseo del Norte. The
signalized intersection with Palomar Airport Road is at the western edge of the Project frontage considered
for the transit MMLOS analysis in this study.
1 City of Carlsbad General Plan Mobility Element, September 22, 2015.
https://www.carlsbadca.gov/home/showpublisheddocument/3422/637434861095100000
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Carlsbad Costco Fuel Station Expansion Transportation Impact Study Existing Transportation Network
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INTERNAL SITE ROADWAYS
Internal to the Project site, there is a two-lane east-west roadway just north of the fuel station that serves the
Costco warehouse parking lot and retail shops to the north. The southern leg of the Palomar Airport Road /
Armada Drive intersection continues south to access the entrance to the Costco fuel station and the
Costco warehouse parking lot. These two internal roadways intersect as a T-intersection just northeast of the
Project site, with the eastbound direction having a stop control and north-south movements running free.
The southbound direction has a dedicated right-turn lane that has cones delineating the right-turn
movement and preventing vehicles from continuing straight from that lane. There is a dedicated
southbound through lane.
EXISTING BICYCLE FACILITIES
The following bicycle facilities are present near the Project site:
Bicycle Lanes – Class II
o Palomar Airport Road, east of Interstate 5
o Armada Drive, between Palomar Airport Road and Legoland Drive
There are no dedicated bike facilities on the internal Project site streets.
EXISTING PEDESTRIAN CONDITIONS
Sidewalks are provided along both sides of Palomar Airport Road and Armada Drive near the Project site.
There are marked crosswalks for all four legs of the signalized intersections of Palomar Airport Road / Paseo
del Norte (high visibility crosswalks) and Palomar Airport Road / Armada Drive. Sidewalk continues along
the west side of Armada Drive south of Paseo del Norte until the internal east-west shopping center
roadway. Similarly, sidewalk is provided on the east side of the western driveway to the shopping center
until the internal east-west shopping center roadway.
EXISTING TRANSIT SERVICE
Transit service in the area is provided by North County Transit District (NCTD). Table 1 presents the two bus
routes that serve the Project area.
Table 1 – Existing Transit Service
Agency Transit Line Description
North County Transit
District (NCTD)
Route 444
Carlsbad Poinsettia COASTER Connection via
Faraday Avenue and Rutherford Road, opearting
during peak weekday AM and PM commute hours
Route 445
Carlsbad Poinsettia COASTER Connection to
Palmoar College, opearting during peak weekday
AM and PM commute hours
Note: Information reflects transit service as of September 22, 2022.
The following three bus stops located near the Project site, all along Palomar Airport Road:
Eastbound on Palomar Airport Road, just east of Paseo del Norte
Eastbound on Palomar Airport Road, just east of Armada Drive
Westbound on Palomar Airport Road, just east of Armada Drive
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Carlsbad Costco Fuel Station Expansion Transportation Impact Study Existing Transportation Network
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Kittelson & Associates, Inc. Page 8
STUDY AREA
The intersections included in the study area are listed below and their existing lane configurations and
control type are shown in Figure 3.
Palomar Airport Road / Armada Drive-Costco Access (signal)
Costco Access / Palomar Place Shopping Center Access (stop-control)
No segments are included in the study as the project adds less than 50 peak hour trips to the network.
EXISTING TRAFFIC VOLUMES
Turning movement counts at the study intersections were collected for weekday morning, weekday
afternoon, and Saturday mid-day times in March 2022. The data worksheets are included in Appendix B.
Figure 3 also shows the existing traffic volumes for the study intersections during each of the peak periods.
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Existing Year 2022 Lane Configurations,
Traffic Control Devices and Traffic Volumes
AM & PM Peak Hours, Saturday Midday Peak Hour 3
Carlsbad Costco Fuel Station Expansion October 2023
Figure
1
- Study Intersections#
- Stop Sign
- Traffic Signal
Palomar Airport Road / Armada Drive / Costco Access
Armada Drive / Costco Access / Palomar Place Shopping Center Access
LANE CONFIG AM VOLUME PM VOLUME SAT VOLUME
2 LANE CONFIG AM VOLUME PM VOLUME SAT VOLUME
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Section 4 — Analysis
Methodology & Evaluation
Criteria
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ANALYSIS METHODOLOGY &
EVALUATION CRITERIA
This section describes the methodology used to evaluate the existing and with Project traffic operating
conditions of the Project study area.
METHODOLOGY
Intersection Level of Service Analysis
“Level of service” describes the operating conditions experienced by users of a facility. Level of service
(LOS) is a qualitative measure of the effect of several factors, including speed, travel time, traffic
interruptions, freedom to maneuver, driving comfort, and convenience. Levels of service are designated
“A” through “F,” from best to worst, which cover the entire range of traffic operations that might occur. LOS
A through E generally represent traffic volumes at less than roadway capacity while LOS F represents over
capacity or forced flow conditions. In general, LOS D or better is considered acceptable while LOS E and
LOS F are not. These conditions are generally described in Table 2.
Table 2 – General Level of Service Definitions
LOS Description
A
Free Flow or Insignificant Delays: Vehicles are completely unimpeded in their
ability to maneuver within the traffic stream. Control delay at signalized
intersections is minimal.
B
Stable Operation or Minimal Delays: The ability to maneuver within the traffic
stream is only slightly restricted, and control delay at signalized intersections are
not significant.
C
Stable Operation or Acceptable Delays: The ability to maneuver and change
lanes is somewhat restricted, and average travel speeds may be about 5 percent
of the free flow speed.
D Approaching Unstable or Tolerable Delays: Small increases in flow may cause
substantial increases in delay and decreases in travel speed.
E Unstable Operation or Significant Delays: Significant delays may occur, and
average travel speeds may be 33 percent or less of the free flow speed.
F
Forced Flow or Excessive Delays: Congestion, high delays, and extensive queuing
occur at critical signalized intersections with urban street flow at extremely low
speeds.
Source: Highway Capacity Manual, Transportation Research Board, Washington D.C., 2016
Intersection analyses for the study intersections were conducted using the operational methodologies
outlined in the 6th Edition of the Highway Capacity Manual (HCM) methodology (Transportation Research
Board, Washington, D.C., 2016), calculated with Synchro 11 software. The HCM procedure calculates a
weighted average stop delay in seconds per vehicle at an intersection and assigns a level of service
designation based on the delay.
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All intersection level-of-service evaluations used the peak 15-minute flow rate during the weekday AM,
weekday PM, and Saturday peak hours. The peak hours were identified as the worse four consecutive 15-
minute periods between 7 and 9 AM and 4 and 6 PM on weekdays, and between 11 AM and 1 PM on
Saturdays. These represent the critical time periods for evaluation based on peak demand on the
surrounding transportation system and the peak demand at the Costco fuel station. Using the peak 15-
minute flow rate ensures that this analysis is based on a reasonable worst-case scenario. For this reason, the
analysis reflects conditions that are only likely to occur for 15 minutes out of each average peak hour.
During all other periods, the transportation system likely will operate under conditions better than the
conditions described in this report.
Table 3 presents the relationship of average delay to level of service for both signalized and unsignalized
intersections.
Table 3 – Level of Service Definition for Intersections
Level of Service Delay Per Vehicle (Seconds)
Signalized Intersection Unsignalized Intersection
A < 10.0 < 10.0
B > 10.0 to 20.0 > 10.0 to 15.0
C > 20.0 to 35.0 > 15.0 to 25.0
D > 35.0 to 55.0 > 25.0 to 35.0
E > 55.0 to 80.0 > 35.0 to 50.0
F > 80.0 > 50.0
Source: Transportation Research Board, Highway Capacity Manual, Washington, D.C., 2016
Signalized Intersections
The HCM procedure calculates a weighted average control delay in seconds per vehicle at a signalized
intersection and assigns a level of service designation based upon the delay. The latest signal timings for
the signalized intersection were obtained from the City of Carlsbad in April 2022 to assist with modeling the
intersection operations.
Unsignalized Intersections
The HCM methodology calculates a weighted average control delay in seconds per vehicle for each
controlled intersection leg and for the intersection. For two-way stop-controlled intersections, the LOS for
the worst approach is used as the LOS performance measure.
Intersection Queuing Analysis
Intersection queuing analysis was conducted for the study intersections. Expected intersection queues and
how they compare to intersection geometry and available queue storage influence traffic operations. The
average and 95th percentile queues, as reported by Synchro 11 HCM methodology, were used to assess
queuing at all study intersections. The queue storage was estimated based on the striped queue storage
shown in Google Earth and field verification.
Transit MMLOS Analysis
Transit multimodal level of service analysis was conducted for the project frontage along Palomar Airport
Road using the MMLOS tool developed by the City of Carlsbad and Fehr & Peers, dated March 2020. The
tool allows each travel mode (pedestrian, bicycle, and transit) to receive its own LOS score and
corresponding letter grade based on the point score shown in Table 4.
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Table 4 – Level of Service Definition for MMLOS
Point Score Level of Service
90-100 A
80-89 B
70-79 C
60-69 D
50-59 E
0-49 F
Source: City of Carlsbad MMLOS Tool, March 2020
EVALUATION CRITERIA
Intersection performance measures reported in this study include LOS and queuing. The internal intersection
of Costco Access / Palomar Place Shopping Center Access is not a City-owned intersection but operations
and queuing may affect the adjacent Palomar Airport Road / Armada Drive intersection so will be
evaluated using the City’s criteria.
Intersection Operations Evaluation Criteria
The City of Carlsbad Growth Management Plan strives to maintain LOS D or better for vehicle operations.
The segment of Palomar Airport Road at Armada Drive is exempt from this requirement.
Intersection Queuing Evaluation Criteria
Queuing conditions would be considered substantial if left and right turning movement queues exceed the
capacity of available storage.
At signalized intersections, if the left turn volume exceeds 250 vehicles per hour, a second left turn lane is
recommended, and if right turn volume exceeds 150 vehicles per hour, a dedicated right turn lane is
recommended.
STUDY SCENARIOS
Based on the Project’s trip generation and consistency with the General Plan, traffic operations and queue
lengths were analyzed for the following scenarios:
Existing (weekday AM, weekday PM, Saturday midday)
Existing Plus Project (weekday AM, weekday PM, Saturday midday)
Dec. 17, 2025 Item #1 58 of 174
Section 5 — Traffic Operations
Analysis
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TRAFFIC OPERATIONS ANALYSIS
EXISTING CONDITIONS
The operational intersection analysis was conducted using the HCM methodology and reflecting the
weekday morning, weekday evening, and Saturday peak hour conditions. Appendix C contains the year
2022 existing conditions Synchro worksheets.
Existing Intersection Operation Analysis
Table 5 summarizes existing traffic operations. As shown in Table 5, the intersection of Palomar Airport
road/Armada Drive/Costco Access road operates at or below LOS D, which is acceptable. Intersection #2
is an internal intersection not relevant to city street operations and therefore LOS criteria does not apply.
Intersection #2 is analyzed to access internal circulation and queues.
Table 5 – Existing Conditions Intersection Operations
ID Intersection Weekday AM Weekday PM Saturday Peak
Delay LOS Delay LOS Delay LOS
1 Palomar Airport Rd / Armada
Dr / Costco Access (Signal) 29.8 C 39.9 D 47.0 D
2 Palomar Place Shopping
Center / Costco Access
(TWSC)
N/A
Source: Kittelson & Associates, Inc. 2024
Notes: TWSC = Two-way Stop Control
1Intersection #2 is an internal intersection and therefore LOS criteria does not apply. Intersection 2 is evaluated for
queues, as shown in Table 6.
Existing Intersection Queuing Analysis
Queue lengths and turn pocket storage lengths at the intersections are summarized in Table 6.
As shown in the table, the average queue lengths at the Palomar Airport Rd / Armada Dr / Costco Access
interesection would not exceed any of the existing storage lengths. The 95th percentile queues exceed
storage at the Palomar Airport Rd / Armada Dr / Costco Access interesection for the following movements
and times:
Westbound left-turn movement 95th percentile queue is over storage by up to 45 feet during
weekday PM and Saturday midday peak times. This would extend into through lane traffic.
Northbound left-turn movement 95th percentile queue is over storage by 9 feet during Saturday
midday. This small overage adjacent to an intersection would not block other movements.
The 95th percentile eastbound queue at the Palomar Place Shopping Center / Costco Access intersection
extends beyond the first driveway but does not reach the second driveway during the weekday PM and
Saturday midday peak times. Existing queue lengths are shown in Table 6 for comparison purposes.
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Table 6 – Existing Queuing at Intersections
ID Intersection Movement Available
Storage (ft)
Average | 95th Percentile Queue (ft)
Weekday AM Weekday PM Saturday Midday
1
Palomar
Airport Rd /
Armada Dr
/ Costco
Access
EBL 360 58 | 91 101 | 141 131 | 180
EBR 950 0 | 24 0 | 36 0 | 38
WBL 290 135 | 250 238 | 330 253 | 335
WBR 260 0 | 19 0 | 31 0 | 29
NBL 230 61 | 95 175 | 223 189 | 239
NBR 160 0 | 61 0 | 63 0 | 65
SBL 360 24 | 46 65 | 99 19 | 39
SBR 390 0 | 10 0 | 64 0 | 48
2
Palomar
Place
Shopping
Center /
Costco
Access
EB 1001 / 2802 n/a | 30 n/a | 108 n/a | 193
Source: Kittelson & Associates, Inc. 2024
Notes: Queue lengths for the unsignalized intersection assumed 25 feet per vehicle.
1 Length between intersection and first shopping center driveway to the west.
2 Length between intersection and second shopping center driveway to the west.
bold correspond to queue lengths beyond the existing storage
PROJECT TRIP GENERATION, DISTRIBUTION, AND
ASSIGNMENT
Costco Trip Generation Database
For the past 20 years, Kittelson has maintained a database of traffic data and travel characteristics for
Costco Wholesale, include fuel stations. The database contains transportation information such as trip
rates, trip type percentages, and parking demand for Costco locations throughout the United States as
well as Canada and Mexico. The database is updated periodically each time new Costco traffic counts or
information become available to Kittelson. To best evaluate the anticipated transportation characteristics
of the Carlsbad fuel station expansion, database data collected on site was used.
The Costco transportation database contains a large quantity of data related to Costco Gasoline fuel
stations. Trip generation rates and trip type information for over 35 Costco Gasoline facilities located
throughout the US are included. Costco has invested significant effort into developing this use-specific trip
generation database for both their warehouses and their fuel stations because of the unique
characteristics of Costco member travel that exist due to membership requirements and the nature of
Costco sales. These unique elements apply to the trip generation for Costco warehouses, Costco Gasoline
fuel stations, and the interaction of trips between the two.
The Costco-specific trip generation data presented follows nationally accepted practices for trip
generation data collection as recommended by the Institute of Transportation Engineers (ITE) and presents
a robust data set upon which to predict the trip generation of the expansion of the fuel station confidently
and accurately.
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Carlsbad Fuel Station Expansion Trip Generation Estimate
In developing a trip generation estimate for fuel station expansion, it is important to recognize that the fuel
station exists today, and the project is an expansion to this existing use, not the addition of a new use.
Furthermore, the market area of the Carlsbad Costco is already defined through existing membership and
operations. As such, the change in fuel station trip generation would not increase directly in proportion to
the increased number of fueling positions. Rather, the additional fueling positions will serve to process the
current peak demand at the fuel station more efficiently and effectively, thus reducing wait times, vehicle
queuing, and vehicle idling. Additionally, given the established market in Carlsbad, the fuel station
expansion does not anticipate any new Costco member enrollment or additional warehouse trips to result
from the expansion.
To best evaluate the anticipated transportation characteristics of the fuel station expansion, data from the
Costco trip generation database as well as data collected on-site were used. Kittelson reviewed before
and after data from other comparable Costco fuel station expansion sites to determine a representative
relationship between trip generation and the addition of fueling positions to an existing fuel station.
Before and After Fuel Expansion Data
Kittelson conducted trip generation counts at 11 other Costco fuel station locations that have expanded in
size. These locations include sites where fuel stations have expanded from 16 or 20 fueling positions to 24 or
32 fueling positions. Of these 11 locations, the comparable expansion sites identified were:
Santee, CA – expansion from 16 to 32 fueling positions
Sunnyvale, CA – expansion from 20 to 30 fueling positions
South San Francisco (SFO Airport), CA – expansion from 20 to 32 fueling positions
South San Francisco (El Camino), CA – expansion from 16 to 32 fueling positions
These sites were selected due to their comparable number of trips prior to their fuel station expansions, as
well as their similar expansion sizing.
To work with a representative sample size, trip generation data were collected before and after the
expansion at each of these locations. Only data collected during similar months of the year before and
after the expansion were included in this summary (for example, trip generation data for the months of
March and April before the expansion were compared to trip generation data for the months of March
and April after the expansion).
The total number of weekday PM peak hour and Saturday midday peak hour trip ends counted for the four
listed sites are provided in Table 7, Table 8, and Table 9, respectively. Note the total number of trip ends
does not reflect any reductions due to internal capture (i.e., trips shared with the warehouse), pass-by, or
diverted trips.
Table 7 – Weekday AM Peak Hour Trip Growth
Location
Weekday AM Peak Hour Trips Generated
Before Expansion After Expansion Percent
Difference
Santee, CA N/A 454 N/A
Sunnyvale, CA 530 634 19.6%
South San Francisco (SFO Airport), CA N/A 610 N/A
South San Francisco (El Camino), CA N/A 608 N/A
Average 19.6%
Source: Kittelson & Associates, Inc. 2024
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Table 8 – Weekday PM Peak Hour Trip Growth
Location
Weekday PM Peak Hour Trips Generated
Before Expansion After Expansion Percent
Difference
Santee, CA 480 758 57.9%
Sunnyvale, CA 612 846 38.2%
South San Francisco (SFO Airport), CA 688 894 29.9%
South San Francisco (El Camino), CA 550 856 55.6%
Average 45.4%
Source: Kittelson & Associates, Inc. 2024
Table 9 – Saturday Midday Peak Hour Trip Growth
Location
Saturday Peak Hour Trips Generated
Before Expansion After Expansion Percent
Difference
Santee, CA 460 924 100.9%
Sunnyvale, CA 646 982 52.0%
South San Francisco (SFO Airport), CA 680 1,022 50.3%
South San Francisco (El Camino), CA 496 880 77.4%
Average 70.1%
Source: Kittelson & Associates, Inc. 2024
Each of the sites demonstrated an increase in the number of peak hour trips. However, the increase is
substantively less than what would be calculated from a direct linear relationship to the number of vehicle
fueling positions. Using a linear relationship, expanding the fuel station from 22 to 30 fueling positions would
equate to an increase in activity or trip generation of 36%. However, the actual before and after data
show an average increase of 19.6%, 45.4%, and 70.1% during the weekday AM, PM, and Saturday midday
peak hours, respectively.
Table 10 and Table 11 show the daily increase in trips, which range from an average of 72.1% on weekdays
to 102.3% on Saturday. It should be noted the project proposes to expand the number of fueling positions
by 8, while the % change in trips is based on higher increases in fueling positions ranging from 10 to 16.
Therefore, our analysis is conservative as the % trip increase is based on data observed at projects that
proportionally had higher expansion in capacity compared to this project.
Table 10 – Weekday Daily Trip Growth
Location
Weekday Daily Trips Generated
Before Expansion After Expansion Percent
Difference
Santee, CA 4,553 9,235 102.8%
Sunnyvale, CA 7,381 10,366 40.4%
South San Francisco (SFO Airport), CA N/A 10,430 N/A
South San Francisco (El Camino), CA N/A 9,230 N/A
Average 72.1%
Source: Kittelson & Associates, Inc. 2024
Table 11 – Saturday Daily Trip Growth
Location
Saturday Daily Trips Generated
Before Expansion After Expansion Percent
Difference
Santee, CA 4,061 10,155 150.1%
Sunnyvale, CA 7,187 11,105 54.5%
South San Francisco (SFO Airport), CA N/A 11,307 N/A
South San Francisco (El Camino), CA N/A 9,696 N/A
Average 102.3%
Source: Kittelson & Associates, Inc. 2024
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These data demonstrate that increasing the number of fueling positions at the Carlsbad Costco fuel station
will not result in a direct linear increase in trip generation. The before and after data capture the change in
demand that results from reducing peak hour queues and wait times at the fuel stations due to latent
demand and more efficient operations during peak periods. In all cases, peak queues and wait times are
significantly reduced. Those members who previously chose not to purchase fuel because of the wait times
will likely do so once the operations are improved.
Trip Type
The data collected at existing Costco Gasoline fuel stations indicate the trip generation characteristics
described below for internal trip capture between the fuel station and the warehouse, as well as pass-by
trips and diverted capture from the surrounding street system2. The unique nature of Costco operations and
its membership requirements result in different trip characteristics than those observed at typical fuel
stations summarized in the standard reference Trip Generation Manual, published by the Institute of
Transportation Engineers (ITE). The percentages of pass-by or diverted trips at Costco fuel stations is
considerably lower than those quoted in the ITE Trip Generation Manual for typical fuel stations.
Correspondingly, membership requirements also have a significant effect on trip internalization (or sharing
of trips) between the warehouse and the fuel station. Fewer people exclusively visit a Costco fuel station (in
comparison to a typical standalone fuel station) because they have another primary purpose for visiting
the site (that being a trip to the warehouse).
Internal Trips
A key finding from the studies conducted at Costco facilities is the fact that approximately 35% of the PM
peak hour trips to and from Costco fuel stations and 40% of the Saturday midday trips are internal capture
trips. Internal capture trips account for those members who patronize both the warehouse and the gasoline
pumps during a single visit to the Costco site. As such, although they account for a trip to both the
warehouse and the fuel station, they only account for one overall vehicle trip to the site and on the
surrounding transportation system. Based on studies including surveys at Costco fuel stations and
membership card transaction data, on average 35% and 40% of the members buying gas during the
weekday PM peak hour and Saturday midday peak hour, respectively, are members whose main purpose
to the site is to visit the Costco warehouse. At some sites this number ranges as high as 75%. However, to
remain conservative, the average rates are applied to this analysis. Since Costco warehouses do not
typically open until after the AM peak hour, there is no internalized trips during the AM peak hour and thus
no rate is applied.
Pass-By Trips
Pass-by trips represent members (and trips) that are currently traveling on the surrounding street network for
some other primary purpose (such as a trip from work to home) and stop into the site en route during their
normal travel. As such, pass-by trips do not result in a net increase in traffic on the surrounding
transportation system and their only effect occurs at the immediate intersections and site access driveways
where they become turning movements. Based on studies of customer surveys at Costco Gasoline fuel
stations, on average 36% and 31% of the members buying gas during the weekday AM and PM peak hours,
respectively, and 30% during the Saturday midday peak hour can be classified as pass-by trip capture from
the surrounding street system. This is lower than the average pass-by rate quoted in the ITE Trip Generation
Manual for typical service stations (45%) and is attributed to the unique travel characteristics that result
from Costco’s membership requirements.
2 Trip type data is based on member surveys conducted at Costco fuel stations during the weekday AM peak hour at 3
sites in 2018 as well as surveys conducted during the weekday PM and Saturday midday peak hours at a total of 26
Costco sites in 2021.
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Diverted Trips
Diverted trips are similar to pass-by trips in that they represent members (and trips) that are currently
traveling on the surrounding street network for some other primary purpose and stop into the site en route
during their normal travel. However, as the name indicates, diverted trips divert from the normal roadways
that would be traveling on the go to the Costco site. Based on studies of customer surveys at Costco
Gasoline fuel stations, on average 40% of the members buying gas during the weekday AM and PM peak
hours, and 35% during the Saturday midday peak hour can be classified as diverted trip capture from the
surrounding street system.
For the purposes of this study, the diverted trips will be treated as net new trips to the two study intersections
recognizing the diversion occurs further away from the Costco site.
Fuel Station Expansion Trip Generation Estimate
At the existing Carlsbad Costco Gasoline fuel station arrival data was collected between 7:00 AM and 9:00
AM and between 4:00 PM and 6:00 PM on a typical weekday in March 2022. Data was also collected
between 11:00 AM and 2:00 PM on a typical Saturday in March 2022. Under existing conditions, the
Carlsbad Gasoline fuel station generates approximately 612 total trip ends (or 306 vehicles) during the
traditional AM peak hour, 594 total trip ends (or 297 vehicles) during the traditional PM peak hour, and 598
total trip ends (or 299 vehicles) during the traditional Saturday midday peak hour. Note, intersection peak
hours for both study intersections are assumed to correspond with the weekday AM, weekday PM, and
Saturday midday peak hours of the surrounding network and have been determined based on the peak
hours of the Armada Drive / Costco Access / Palomar Airport Road intersection. Volume development
figures are included in Appendix B.
Applying this data to historical data summarized from comparable trips in the Costco Database (Tables 7
through 11), the observed increase in activity from other Costco Gasoline expansion sites to the existing trip
generation provides an estimate of the expected number of additional fuel station total trips that will result
from the Carlsbad fuel expansion from 22 fueling positions to 30 fueling positions. Table 12 summarizes the
trip generation estimates of the fuel station for the weekday AM and PM peak hours and Saturday midday
peak hour excluding diverted trips. At the request of the City of Carlsbad this study anticipates performing
analysis of the traditional AM (7 AM – 9 AM), traditional PM (4 PM – 7 PM), and traditional Saturday midday
(11 AM – 2 PM) peak hours. The trip generation and all study intersection volumes are derived from the
same time during each period, corresponding to the highest 1-hour traffic volumes of the surrounding
network within each peak period.
As can be seen from Table 12, the additional fueling positions are estimated to generate approximately
120 additional weekday AM peak hour new gas trip ends, 176 additional weekday PM peak hour new gas
trip ends, and 251 additional Saturday midday peak hour new gas trip ends.
Table 13 summarizes the trip generation estimates of the fuel station for the weekday and Saturday daily
time periods for the purpose of determining study roadway segments. As can be seen from Table 13, the
additional fueling positions are estimated to generate approximately 1,938 additional external weekday
daily new gas trip ends and 2,357 additional external Saturday daily new gas trip ends. External gas trip
ends consist of driveway trips including pass-by trips. The project would generate a total of net new daily
trips (excluding pass-bys) of 1,337 on weekdays and 1,650 on Saturdays.
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Table 12 – Carlsbad Costco Fuel Expansion Trip Generation Estimate - Peak Hours
Trip Generation Estimate: Fuel Expansion from 22 Fueling Positions to 30 Fueling Positions
Trip Type Weekday AM Peak
Hour Trip Ends
Weekday PM Peak
Hour Trip Ends
Saturday Midday
Peak Hour Trip Ends
Existing Gas Facility Trip Ends 612 594 598
Gas Facility Expansion % Change 19.6% 45.4% 70.1%
Total In Out Total In Out Total In Out
Unadjusted Gas Expansion Trip Ends1 120 60 60 270 135 135 419 210 209
Internal Trips2
(0% AM, 35% PM, 40% Sat)
0 0 0 (94) (47) (47) (168) (84) (84)
Gas Expansion Trip Ends3 120 60 60 176 88 88 251 126 125
Pass-By Trips4,5
(36% AM, 31% PM, 30% Sat)
(42) (21) (21) (54) (27) (27) (74) (37) (37)
Net New Trip Ends6 78 39 39 122 61 61 177 89 88
Source: Kittelson & Associates, Inc. 2024
Notes: 1 Unadjusted trip ends are new trips occurring at the fuel facility without adjustments for internal capture with the
warehouse
2 Internalization percentages derived by averaging the analysis results of transaction data collected in 2021 from Costco
at 22 sites with existing fuel stations.
3 Gas Expansion Trip Ends are trips occurring outside the area between the fuel facility and the warehouse, which
exclude internal trip capture. Gas Expansion Trip Ends turn movement volumes are depicted in Appendix D.
4 Pass-by percentages derived by averaging the results of Costco member surveys conducted during the weekday AM,
weekday PM, and Saturday midday peak hours at existing fuel stations during 2018 (3 sites) and 2021 (26 sites).
5 Pass-by Trip turn movement volumes are depicted in Appendix D.
6 Net New Trip Ends turn movement volumes are depicted in Appendix D. For the purposes of evaluating operations at
the two study intersection operations, no trip credits were taken for diverted trips. Adjustments were made at the
intersection of Palomar Airport Road to account for trip patterns changes related to pass-by trips.
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Table 13 – Carlsbad Costco Fuel Expansion Trip Generation Estimate - Daily
Trip Generation Estimate: Fuel Expansion from 22 Fueling Positions to 30 Fueling Positions
Trip Type Weekday Daily Trip Ends Saturday Daily Trip Ends
Existing Gas Facility Trip Ends 4,162 3,841
Gas Facility Expansion % Change 71.6% 102.3%
Total In Out Total In Out
Unadjusted Gas Expansion Trip Ends1 2,982 1,491 1,491 3,929 1,965 1,964
Internal Trips2
(35% PM, 40% Sat)
(1,044) (522) (522) (1,572) (786) (786)
Gas Expansion Trip Ends3 1,938 969 969 2,357 1,179 1,178
Pass-By Trips4
(31% PM, 30% Sat)
(601) (300) (301) (707) (354) (353)
Net New Trip Ends5 1,337 669 668 1,650 825 825
Source: Kittelson & Associates, Inc. 2024
Notes:
1 Unadjusted trip ends are new trips occurring at the fuel facility without adjustments for internal capture with the
warehouse
2 Internalization percentages derived by averaging the analysis results of transaction data collected in 2021 from Costco
at 22 sites with existing fuel stations. Internalization percentage for weekday PM peak applied to weekday daily
calculations and internalization percentage for Saturday midday peak applied to Saturday daily calculations.
3 Gas Expansion Trip Ends are trips occurring outside the area between the fuel facility and the warehouse, which
exclude internal trip capture.
4 Pass-by percentages derived by averaging the results of Costco member surveys conducted during the weekday AM,
weekday PM, and Saturday midday peak hours at existing fuel stations during 2018 (3 sites) and 2021 (26 sites). Pass-by
percentage for weekday PM peak applied to weekday daily calculations and pass-by percentage for Saturday midday
peak applied to Saturday daily calculations.
5 For the purposes of evaluating operations at the two study intersection operations, no trip credits were taken for
diverted trips. Adjustments were made at the intersection of Palomar Airport Road to account for trip patterns changes
related to pass-by trips.
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TRIP DISTRIBUTION PATTERN & TRIP ASSIGNMENT
The trip distribution pattern for the Costco fuel expansion was estimated based on site observations, a
review of the circulation network and the existing turn movement volumes3 and are illustrated in Figure 4
and Figure 5.
The Gas Expansion Trip Ends line in Table 12 corresponds to the total number of new trips added to the
study intersections taking into account internal capture with the warehouse. For the purposes of evaluating
intersection operations no credits were taken for diverted trips, as these trips would still occur at the study
intersections. Adjustments were made at the intersection of Palomar Airport Road to account for trip
patterns changes related to pass-by trips. The net new and pass-by trips are shown in Figure 6 and Figure 7.
The resulting project’s trip assignment during peak hours at the intersections and roadways are depicted in
Figure 8 and Figure 9, respectively. The resulting project’s daily trip assignment at roadways are depicted
in Figure 10.
The project would add more than 11 peak hour trips and 110 daily trips to Palomar Airport Road, which is
an “exempt road segment” in the City of Carlsbad Geneal Plan Mobility Element. Per the City’s Mobility
Element Policy 3-P.11, the project will be subject to implementing a Transportation Demand Management
plan to encourage employees and patrons to shift from driving alone to traveling by sustainable modes.
The TDM plan for the project was prepared on July 22, 2024.
3 City staff requested a trip distribution comparison to the original Costco Warehouse traffic study. It appears the Costco
warehouse opened in 1992 and we have been unable to locate a copy of that study. Recognizing the study would likely
be over 20 years old, we have not provided the requested comparison and instead relied on current traffic patterns to
estimate the distribution pattern.
Dec. 17, 2025 Item #1 68 of 174
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Inbound Traffic Patterns 4
Carlsbad Costco Fuel Station Expansion October 2023
Figure
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Trip Distribution assumptions developed based on existing trafficpatterns as demonstrated by March 2022 traffic counts and traffic
patterns observed on site by project team at and around the fuel station.
Dec. 17, 2025 Item #1 69 of 174
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Carlsbad Costco Fuel Station Expansion October 2023
Figure
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AM & PM Peak Hours, Saturday Midday Peak Hour 6
Carlsbad Costco Fuel Station Expansion October 2023
Figure- Study Intersections#
AM VOLUME PM VOLUME SAT VOLUME1
AM VOLUME PM VOLUME SAT VOLUME2
Palomar Airport Road / Armada Drive / Costco Access
Armada Drive / Costco Access / Palomar Place Shopping Center Access
17 14
42114
4
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35
35
28 21
63421
6
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55
55
40 31
94831
9
9
9
79
80
Traffic Volumes are assumed to follow the inbound / outbound trip
distributions provided in Figures 4 and 5. Volumes have beenassumed through the Internal Costco Driveway / Carls Jr Driveway.
4 / 6 / 9
- AM / PM / SAT
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AM & PM Peak Hours, Saturday Midday Peak Hour 7
Carlsbad Costco Fuel Station Expansion October 2023
Figure- Study Intersections#
AM VOLUME PM VOLUME SAT VOLUME1
AM VOLUME PM VOLUME SAT VOLUME2
Palomar Airport Road / Armada Drive / Costco Access
Armada Drive / Costco Access / Palomar Place Shopping Center Access
-1210 -77
8 13
2-1 -1
2
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19
19
-1512 -99
11 16
3-2 -1
3
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24
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-2016 -1313
15 22
4-2 -2
4
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33
33
Traffic Volumes are assumed to follow the inbound / outbound trip
distributions provided in Figures 4 and 5. Volumes have beenassumed through the Internal Costco Driveway / Carls Jr Driveway.
2 / 3 / 4
- AM / PM / SAT
Dec. 17, 2025 Item #1 72 of 174
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Site Generated Trip Assigment by Intersection
(Net New Trips + Pass-By Trips)
AM & PM Peak Hours, Saturday Midday Peak Hour 8
Carlsbad Costco Fuel Station Expansion October 2023
Figure
AM VOLUME PM VOLUME SAT VOLUME1
AM VOLUME PM VOLUME SAT VOLUME2
- Study Intersections#
Palomar Airport Road / Armada Drive / Costco Access
Armada Drive / Costco Access / Palomar Place Shopping Center Access
54
54
6
6
-1-16
27294
21-727-12
-1-29
37456
30-940-15
-2-213
53639
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79
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9
11
3
11
2
13
13
Traffic Volumes are assumed to follow the inbound / outbound trip
distributions provided in Figures 4 and 5. Volumes have beenassumed through the Internal Costco Driveway / Carls Jr Driveway.
- AM / PM / SAT
6 / 9 / 13
Dec. 17, 2025 Item #1 73 of 174
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Site Generated Trip Assignment by Roadway Segment
AM & PM Peak Hours, Saturday Midday Peak Hour 9
Carlsbad Costco Fuel Station Expansion October 2023
Figure- Study Intersections#
21 / 34 / 48
21 / 34 / 49
18 / 27 / 39
18 / 27 / 40
10 / 15 / 21
10 / 15 / 22
2 / 3 /
32 / 3 /
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14 / 21 / 31
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4 /
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- AM / PM / SAT
Dec. 17, 2025 Item #1 74 of 174
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Weekday Daily & Saturday Daily 10
Carlsbad Costco Fuel Station Expansion October 2023
Figure- Study Intersections#
367 / 453
368 / 453
300 / 371
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166 / 206
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32 / 4
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- Weekday / Saturday
Dec. 17, 2025 Item #1 75 of 174
Carlsbad Costco Fuel Station Expansion Transportation Impact Study Traffic Operations Analysis
August 14, 2025
Kittelson & Associates, Inc. Page 31
EXISTING PLUS PROJECT CONDITIONS
The operational intersection analysis was conducted using the HCM methodology and reflecting the
weekday morning, weekday evening, and Saturday peak hour conditions for a forecast existing plus
project condition. Turning movement counts at the study intersections were calculated by adding the
project trip assignment to existing conditions. Figure 11 shows the existing traffic volumes for the study
intersections during each of the peak periods. Appendix D contains the year 2022 existing plus project
conditions Synchro worksheets.
Existing Plus Project Intersection Analysis
Table 14 summarizes existing plus Project scenario intersection operations results. As shown in the table, the
intersection of Palomar Airport road/Armada Drive/Costco Access road operates at or below LOS D, which
is acceptable. With project traffic there would be no change in the LOS grade and the increase in delays
would be small, less than 2 seconds per vehicle.
Intersection #2 is an internal intersection not relevant to city street operations and therefore LOS criteria
does not apply. Intersection #2 is analyzed to access internal circulation and queues.
Table 14 – Existing Plus Project Intersection Operations
# Intersection Peak
Hour
Existing Existing Plus
Project
Change
in Delay
Delay LOS Delay LOS
1
Palomar Airport Rd / Armada Dr /
Costco Access (Signal)
AM 29.8 C 30.8 C 1.0
PM 39.9 D 41.3 D 1.4
SAT 47.0 D 48.6 D 1.6
2 Palomar Place Shopping Center /
Costco Access (TWSC)1 N/A
Source: Kittelson & Associates, Inc. 2024
Notes: 1Intersection #2 is an internal intersection and therefore LOS criteria does not apply. Intersection 2 is evaluated for
queues, as shown in Table 15.
Dec. 17, 2025 Item #1 76 of 174
Carlsbad Costco Fuel Station Expansion Transportation Impact Study Traffic Operations Analysis
August 14, 2025
Kittelson & Associates, Inc. Page 32
Existing Plus Project Queuing Analysis
Queue lengths and turn pocket storage lengths at the intersections with addition of project traffic are
summarized in Table 15. The signalized intersection analysis provided average and 95th percentile queue
lengths, while unsignalized intersection analysis only provides the 95th percentile.
The average queue lengths at the Palomar Airport Rd / Armada Dr / Costco Access interesection would
not exceed any of the existing storage lengths by more than 5 feet, which is assumed to be within the
available storage.
The 95th percentile queues exceed storage at the Palomar Airport Rd / Armada Dr / Costco Access
interesection for the following movements and times:
Westbound left-turn movement 95th percentile queue is over storage by up to 105 feet during
weekday PM and Saturday midday peak times. This is 60 feet longer than existing condition
queues, and would continue to extend into through lane traffic.
o The westbound left-turn lane could be extended by 110 feet by modifying the raised
median to capture existing and anticipated increases in 95th percentile left-turn queue
lengths, which are estimated to need 400 feet of storage.
Northbound left-turn movement 95th percentile queue is over storage by 49 feet during Saturday
midday and increases by only 10 feet with the project traffic and is considered a nominal change
(less than one car length). This queue would occasionally extend into the adjacent intersection
which would create some queuing internal to the site while vehicles wait for a green light to clear
the northbound left-turn queues at Palomar Airport Road.
The 95th percentile eastbound queue at the Palomar Place Shopping Center / Costco Access intersection
would extend beyond the first driveway but not reach the second driveway during the weekday PM, but
would extend beyond the second driveway during the Saturday midday peak. Extending beyond the
second driveway would limit the site circulation options. To help alleviate queues on this internal Palomar
Place Shopping Center roadway, vehicles exiting the fuel station can be encouraged to head south from
the exit rather than using the northern route along this roadway. Costco can position gas attendants at the
gas exit to direct traffic south and away from the Palomar Place Shopping Center roadway when queues
along that roadway exceed the second driveway.
Dec. 17, 2025 Item #1 77 of 174
Carlsbad Costco Fuel Station Expansion Transportation Impact Study Traffic Operations Analysis
August 14, 2025
Kittelson & Associates, Inc. Page 33
Table 15 – Existing Plus Project Queuing at Intersections
ID Intersection Movement Available
Storage (ft) Scenario
95th Percentile Queue (ft) –
Existing Plus Project
Weekday AM Weekday
PM
Saturday
Midday
1 Palomar Airport Rd / Armada Dr
/ Costco Access
EBL 360 Existing 91 141 80
Existing Plus Project 91 141 180
EBR 950 Existing 24 36 38
Existing Plus Project 25 38 73
WBL 290 Existing 250 330 335
Existing Plus Project 299 387 395
WBR 260 Existing 19 31 29
Existing Plus Project 19 31 29
NBL 230 Existing 95 223 239
Existing Plus Project 113 230 279
NBR 160 Existing 61 63 65
Existing Plus Project 64 67 71
SBL 360 Existing 46 99 39
Existing Plus Project 46 99 39
SBR 390 Existing 10 64 48
Existing Plus Project 8 62 45
2
Palomar Place Shopping
Center / Costco Access EB 1001 / 2802
Existing 30 108 193
Existing Plus Project 40 183 393
Source: Kittelson & Associates, Inc. 2024
Notes: Queue lengths for the unsignalized intersection assumed 25 feet per vehicle.
1 Length between intersection and first shopping center driveway to the west.
2 Length between intersection and second shopping center driveway to the west.
bold correspond to queue lengths beyond the existing storage.
Dec. 17, 2025 Item #1 78 of 174
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Existing Plus Project Traffic Volumes
AM & PM Peak Hours, Saturday Midday Peak Hour 11
Carlsbad Costco Fuel Station Expansion October 2023
Figure- Study Intersections#
AM VOLUME PM VOLUME SAT VOLUME1
AM VOLUME PM VOLUME SAT VOLUME2
Palomar Airport Road / Armada Drive / Costco Access
Armada Drive / Costco Access / Palomar Place Shopping Center Access
1613118
231 853109
164
39
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4
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8
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2
3
Dec. 17, 2025 Item #1 79 of 174
Section 6 — Transit MMLOS
Dec. 17, 2025 Item #1 80 of 174
Carlsbad Costco Fuel Station Expansion Transportation Impact Study Transit MMLOS Evaluation
August 14, 2025
Kittelson & Associates, Inc. Page 36
TRANSIT MMLOS EVALUATION
General Plan Mobility Element established a Multi-Modal Level of Service (MMLOS) policies, goals and
criteria to evaluate pedestrian, bicycle and transit transportation modes. Transit multimodal level of service
analysis was conducted for the project frontage along Palomar Airport Road using the City’s MMLOS tool.
The tool allows each travel mode (pedestrian, bicycle, and transit) to receive its own LOS score and
corresponding letter grade. As Palomar Road is an “arterial” road, the applicable LOS is for transit and
traffic (pedestrian and bike modes LOS are not applicable for an arterial road). Traffic LOS was evaluated
and discussed previously, this section presents the evaluation of the transit LOS analysis. The transit LOS
takes into account all things that influence the experience of a transit user are taken into account (transit
frequency, number of routes, distance to stops, stop amenities, etc). A project impact is significant if an
existing pedestrian, bicycle or transit facility is determined to not meet the LOS D standard regardless of the
forecasted number of project trips expected to use the facility.
The transit amenities along Palomar Airport Road between Paseo del Norte and Armada Drive were
evaluated using the City of Carlsbad’s interactive MMLOS Tool (dated March 2020). There is one bus stop
for eastbound routes to stop at along this section of roadway. To analyze westbound routes, a bus stop just
east of the Palomar Airport Road / Armada Drive intersection was evaluated. The analysis identified that
both bus stops are less than ¼-mile from the project site using ADA-accessible routes and serve bus routes
444 and 445 that provide direct connection to the Poinsettia COASTER station with headways
approximately every one hour during weekday morning and afternoon commute times. No transit priority
was identified along this section of roadway.
Based on the existing transit route types, headways, and amenities at the stations and access to the stops
along the segment, the analysis resulted in a score of 77 points. However, because the bus stops lack
benches, which is an essential amenity, the resulting LOS is F. Without benches, the LOS for transit users is
below the LOS D standard. With the bus stop benches the LOS would meet the target LOS D standard for
transit users.
As previously discussed, an impact occurs and is deemed significant if an existing facility in the project
study area does not meet the applicable LOS standard (in this case transit). Therefore, the project would
be responsible for the implementation of benches at the following bus stops:
Palomar Airport Road eastbound direction between Paseo del Norte and Armada Drive (by Carl’s
Junior)
Palomar Airport Road westbound direction east of Armada Drive (NE corner of the intersection)
A summary of the Transit MMLOS worksheet is provided in Appendix E.
Dec. 17, 2025 Item #1 81 of 174
Section 7 — Site Access and
Circulation Review
Dec. 17, 2025 Item #1 82 of 174
Carlsbad Costco Fuel Station Expansion Transportation Impact Study Site Access and Circulation
August 14, 2025
Kittelson & Associates, Inc. Page 38
SITE ACCESS AND CIRCULATION
SITE ACCESS
The entrance to the fuel station is a long open area on the east side of the fuel station off the Costco
access roadway. Vehicles can enter from the north or the south and there is an area for vehicles to queue
while they wait for an open fueling position. The exit from the fuel station is on the west side of the fuel
station and connects to an internal parking lot drive aisle. The main travel pattern to and from the fuel
station would go through the Palomar Airport Road / Armada Drive signalized intersection and internal
Palomar Place Shopping Center Access / Costco Access stop-controlled intersection. Some vehicles would
also be parking to access the Costco warehouse either before or after using the fuel station.
FUEL STATION QUEUES
The primary purpose of the fuel station expansion is to improve the current operations and queuing that the
existing facility experiences. Similar to opening more cashiers/check-out lanes at a supermarket, the
additional “cashiers” available do not determine how many people wait in line but serve to process those
waiting in line more efficiently and quickly. While the average time it takes for a vehicle to fuel does not
significantly change by the addition of more fueling positions, the time spent waiting to fuel reduces
because there are more fueling positions available to process vehicles simultaneously.
While there is an increase in trips expected with the fuel station expansion, other Costco expansion
locations show that this is greatly outweighed by the benefits of providing more pumps to expedite the
processing of vehicles during peak times. All prior Costco expansion locations were found to have more
efficient processing of vehicles, shorter wait times, shorter queues, and less idling after expansion. For
example, most average peak period queues at Costco fuel stations that had recent expansions have been
observed to decrease by 30-70% after expansion.
Existing queuing data were collected in March 2022 at the Carlsbad Costco fuel station between 7:00 AM
and 9:00 AM and between 4:00 PM and 6:00 PM on a weekday and between 11:00 AM and 2:00 PM on a
Saturday. This information is also included in Appendix B. Table 16 summarizes the existing observed
queuing conditions at the 22-position Carlsbad Costco fuel station during these peak hours. As shown in the
table, the highest number of queued vehicles was observed during the weekday PM peak period. The
number of vehicles that can be accommodated in the designated queue area varies according to the
demand and as a function of individual driver behavior and vehicle type. According to the data collection
findings, during the weekday AM and Saturday Midday, the queue generally did not extend beyond the
fuel station designated area. During the weekday PM count period, the queue extended to areas outside
the gas queue area to the north primarily between 4:00 and 5:00 PM. At peak demand, up to 14 vehicles
were waiting outside the designated fuel station queue area. These queues backed up along the Costco
Access drive just south of Palomar Airport Road, which has the potential to affect operations at the
Palomar Airport Road / Armada Drive signalized intersection.
Dec. 17, 2025 Item #1 83 of 174
Carlsbad Costco Fuel Station Expansion Transportation Impact Study Site Access and Circulation
August 14, 2025
Kittelson & Associates, Inc. Page 39
Table 16 – Existing Peak Hour Carlsbad Costco Fuel Station Queuing
Average
Queue*
95th Percentile Queue*
Weekday AM Peak Period 11 23
Weekday PM Peak Period 39 49
Saturday Midday Peak Period 34 42
Source: Kittelson & Associates, Inc. 2024
Notes: * Queued vehicles waiting in line behind the pumps – does not include vehicles at fueling positions.
Kittelson reviewed before and after data from other comparable Costco fuel station expansion sites to
determine a representative relationship between queues and the addition of fueling positions to an existing
fuel station. Queuing evaluations of Costco fuel station expansions at similar sites have demonstrated a
substantial reduction in recorded queues during the peak hours after expansion.
Using a per pump difference would yield a reduction of approximately 50% (as the project proposed to
expand the number of fueling positions from 22 to 30) . However. the queues are also a function of the
number of arrivals in addition to the number of fueling positions to process the demand. Consistent with the
approach to calculate trip generation, the change in queue would not decrease directly in proportion to
the increased number of fueling positions. To best evaluate the anticipated transportation characteristics
of the fuel station expansion, data from the Costco trip generation database as well as data collected on-
site were used. Kittelson reviewed before and after data from other comparable Costco fuel station
expansion sites (in this case Sunnyvale) to determine a representative relationship between queues and
the addition of fueling positions to an existing fuel station. For the periods where the queues are the
greatest (weekday PM peak and Saturday midday) our method is conservative as the reductions are less
than 50%.
Weekday AM peak hour queues from similar fuel station expansions are shown in
Table 17. Weekday PM peak hour queues from similar fuel station expansions are compared in
Table 18 and Saturday midday peak hour queues from similar fuel station expansions are compared in
Table 19. During the weekday AM peak hour the only data available is for Sunnyvale with a queue
reduction of 62.5%. During the weekday PM peak hour, these sites recorded a net average queue
reduction of 55.4%, despite the noted increase in overall trips recorded in the same one-hour period. During
the Saturday midday peak hour, these sites experienced a net average queue reduction of 31.8% following
expansion.
Given the proposed 8 fuel position increase at Carlsbad and the relative increase in pumps from the
comparable sites, the anticipated reduction in queue was calculated based on data from Sunnyvale
observed (where 10 fuel positions were added) during the PM peak hour (representing weekdays) and the
Saturday midday peak hour. Using the Sunnyvale data, the anticipated reduction in queues at Carlsbad
are anticipated to be 17.9% on weekdays, and 34.8% on Saturdays. Actual queue reductions realized may
be higher.
The available data demonstrate that addition of dispensers will reduce wait times, queues, and idling at
the Carlsbad Costco fuel station once expanded.
Table 17 – Weekday AM Peak Hour Observed Queue - Before & After Data Summary
Fueling Positions Observed 95th Percentile Weekday AM
Peak Hour Queue (vehicles)
Location Before After Before
Expansion
After
Expansion
%
Difference
Sunnyvale, CA 20 30 8 3 -62.5%
Dec. 17, 2025 Item #1 84 of 174
Carlsbad Costco Fuel Station Expansion Transportation Impact Study Site Access and Circulation
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Source: Kittelson & Associates, Inc. 2024
Notes:
* Queued vehicles waiting in line behind the pumps – does not include vehicles at fueling positions.
Table 18 – Weekday PM Peak Hour Observed Queue - Before & After Data Summary
Fueling Positions Observed 95th Percentile Weekday PM
Peak Hour Queue (vehicles)
Location Before After Before
Expansion
After
Expansion
%
Difference
Sunnyvale, CA 20 30 28 23 -17.9%
Source: Kittelson & Associates, Inc. 2024
Notes: * Queued vehicles waiting in line behind the pumps – does not include vehicles at fueling positions.
Table 19 – Saturday Midday Peak Hour Observed Queue - Before & After Data Summary
Fueling Positions Observed 95th Percentile Saturday
Midday Peak Hour Queue (vehicles)
Location Before After Before
Expansion
After
Expansion
%
Difference
Sunnyvale, CA 20 30 46 30 -34.8%
Source: Kittelson & Associates, Inc. 2024
Notes: * Queued vehicles waiting in line behind the pumps – does not include vehicles at fueling positions.
As shown in Table 20, when applying the Sunnyvale reductions to the observed 95th percentile queues at
the Carlsbad Costco fuel station, the weekday AM peak hour would be reduced from 23 to 19 vehicles, the
weekday PM peak hour queue would reduce from 49 to 41 vehicles, and the Saturday midday peak hour
queue would be reduced from 42 to 28 vehicles. The 95th percentile condition represents a peak condition
for planning and design purposes, similar to the use of the 95th percentile to design turn lane storage
pockets at intersections.
Table 20 – Proposed Peak Hour Carlsbad Costco Fuel Station Queuing
Average
Queue*
95th Percentile Queue*
Weekday AM Peak Period 10 19
Weekday PM Peak Period 33 41
Saturday Midday Peak Period 23 28
Source: Kittelson & Associates, Inc. 2024
Notes: * Queued vehicles waiting in line behind the pumps – does not include vehicles at fueling positions.
As shown in Table 20, the average queues are much smaller than the 95th percentile queue and will be
contained within the designated queue area.
Kittelson developed graphical illustrations to depict what these queue lengths would look like on the
Project site. The following illustrate the existing and anticipated 95th percentile queues during the weekday
and Saturday peak times. The figures represent vehicles in queue with a spacing of 25 feet per vehicle, as
the distance normally used to assess queues. This queue space per vehicle has also been confirmed by
review of aerial photography at several Costco Gasoline fuel facilities. These figures represent an average
distance between cars, however conditions may vary based on individual driver behavior and look
different from time to time. Figure 12 and Figure 13 present the existing 95th percentile queue during the
weekday PM peak hour when queues are longest and Saturday midday peak hour, respectively. Figure 14
and Figure 15 presents the estimated 95th percentile queue during the weekday PM peak hour and
Dec. 17, 2025 Item #1 85 of 174
Carlsbad Costco Fuel Station Expansion Transportation Impact Study Site Access and Circulation
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Kittelson & Associates, Inc. Page 41
Saturday midday peak hour, respectively. As shown in the Figure 14, the expected 95th percentile for
weekday PM is less than the existing queue in Figure 12, but is not expected to be contained within the fuel
station area and may necessitate use of a queue management plan (discussed in the next section of this
report) if the queue interferes with internal site circulation. As shown in Figure 15, the expected 95th
percentile queues for weekday PM and Saturday midday are projected to be contained within the fuel
station area.
It should be noted that Costco fuel dispensers are designed with extra-long hoses that allow fueling from
either side of the vehicle, so motorists can choose any lane to fuel their vehicle. Costco members know that
the hoses reach both sides from experience; furthermore, there are signs indicating the long hoses/dual side
fueling at the canopy entrance area. In addition, Costco attendants at the fuel station are present to help
manage where members queue and guide vehicles within the storage area. This proactive management
helps overcome the imbalance in queuing that might otherwise occur due to some people’s preference to
pull up to a pump that is on the side of their vehicle filling port. Based on observations and feedback from
local operators and review of aerial photography and video collection at several sites including Carlsbad,
Costco gas queues observed are typically well balanced.
QUEUE MANAGEMENT PLAN
A proposed queue management plan has been developed for the Carlsbad Costco fuel station to
implement as needed. The purpose of the queue management plan is to have a pre-approved plan
where Costco employees direct and monitor vehicle queues when queues extend beyond the designated
fuel station queue area and have the potential to impede other traffic flow. The proposed Carlsbad
Costco fuel station queue management plan is provided as Appendix F.
The proposed queue management plan creates a temporary counterflow drive aisle just south and along
the frontage of the fuel station to provide additional space for queued vehicles. The plan can be used until
there is adequate space within the fuel station area to resume normal operations. The drive isle east of the
gas station that is oriented along the eastern boundary of the site would continue to provide two-way
traffic with a northbound and southbound lane. This plan would also temporarily modify circulation in the
drive isle south of the gas station to allow for two lanes heading in the eastbound direction, and to block
access to seven parking spaces. Costco fuel station attendants would be assigned to place directional
signage to inform vehicles and assist with monitoring and directing traffic until queues are stabilized within
the fuel station storage area. The active queue management techniques described above are a common
practice for Costco fuel station facilities to be implemented as needed during periods of peak fuel station
demand.
Dec. 17, 2025 Item #1 86 of 174
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Existing Weekday PM Peak Hour 95th Percentile Queue
Carlsbad, California 12
Carlsbad Costco Fuel Station Expansion May 2024
Figure
*Queues represent typical queues and may vary
based off individual driver behavior.
49 cars in queue
Site plan provided by Barghausen Consulting Engineers, Inc.
Dec. 17, 2025 Item #1 87 of 174
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Existing Saturday Midday Peak Hour 95th Percentile Queue
Carlsbad, California 13
Carlsbad Costco Fuel Station Expansion May 2024
Figure
*Queues represent typical queues and may vary
based off individual driver behavior.
42 cars in queue
Site plan provided by Barghausen Consulting Engineers, Inc.
Dec. 17, 2025 Item #1 88 of 174
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Proposed Weekday PM Peak Hour 95th Percentile Queue
Carlsbad, California 14
Carlsbad Costco Fuel Station Expansion May 2024
Figure
*Queues represent typical queues and may vary
based off individual driver behavior.
**Vehicles with yellow highlight indicate potential
queue spillback from queue storage.
41 cars in queue
Site plan provided by Barghausen Consulting Engineers, Inc.
Dec. 17, 2025 Item #1 89 of 174
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Proposed Saturday Midday Peak Hour 95th Percentile Queue
Carlsbad, California 15
Carlsbad Costco Fuel Station Expansion May 2024
Figure
*Queues represent typical queues and may vary
based off individual driver behavior.
28 cars in queue
Site plan provided by Barghausen Consulting Engineers, Inc.
Dec. 17, 2025 Item #1 90 of 174
Section 8 — Findings &
Recommendations
Dec. 17, 2025 Item #1 91 of 174
Carlsbad Costco Fuel Station Expansion Transportation Impact Study Findings & Recommendations
August 14, 2025
Kittelson & Associates, Inc. Page 47
FINDINGS & RECOMMENDATIONS
The expansion of the Carlsbad Costco fuel station will result in a net increase in trips to the site. The
additional fueling positions are estimated to generate approximately 120 additional weekday AM peak
hour new gas trip ends, 176 additional weekday PM peak hour new gas trip ends, and 251 additional
Saturday midday peak hour new gas trip ends. On a daily basis, the additional fueling positions are
estimated to generate approximately 1,938 additional weekday daily new gas trip ends and 2,357
additional Saturday daily new gas trip ends.
INTERSECTION LOS AND DELAY
The intersection of Palomar Airport Road / Armada Drive-Costco Access would continue to operate at LOS
D with Project traffic. The intersection of Palomar Place Shopping Center Access / Costco Access would
degrade to LOS F during weekday PM and Saturday peak times. This would result in increased delays at
intersections internal to the site but would not significantly change operations at the Palomar Airport Rd /
Armada Dr / Costco Access intersection.
INTERSECTION AND SITE QUEUES
Average queue lengths at the Palomar Airport Rd / Armada Dr / Costco Access interesection would be
within the available storage. The westbound left-turn movement 95th percentile queue currently exceeds
the storage length and would increase up to 60 feet during weekday PM and Saturday midday peak times.
The left-turn lane currently has a length of 290 feet and would need to be extended to 400 feet by
modifying the raised median to capture existing and anticipated increases in 95th percentile left-turn queue
lengths. Therefore, the westbound left-turn lane will be extended to accommodate the anticipated 95th
percentile queue lengths of up to 400 feet during the peak hours. The modification will be funded,
designed and constructed by the applicant in consultation with City of Carlsbad Public Works and
consistent with City’s requirements.
The 95th percentile eastbound queue at the Palomar Place Shopping Center / Costco Access intersection
would extend beyond the second driveway during the Saturday midday peak with addition of Project
traffic. To help alleviate queues on this internal Palomar Place Shopping Center roadway, Costco gas
attendants can provide workers to direct traffic to the south when queues along the northern east-west
roadway affect internal circulation such as blocking north-south driveways.
Queues at the fuel station during the proposed AM peak hour, and Saturday midday peak hours would be
contained within the designated queue area and not affect adjacent intersection operations. During the
weekday PM peak hour, queues may spill past the designated fuel storage area as demonstrated in the
95th percentile queue condition. A queue management plan has been developed to address instances
where abnormally long queues form. The queue management plan component includes placing
temporary orange cones to direct and manage vehicle circulation and queueing areas, placing
attendants to manage traffic and temporary signs such as “COSTCO GAS THIS WAY”, “TURN HERE FOR
GAS”, and “WAIT HERE FOR GAS” to instruct drivers, and stationing three trained Costco fuel station
employees at designated areas to facilitate queue management. The Carlsbad Costco fuel station queue
management plan is provided as Appendix F.
Dec. 17, 2025 Item #1 92 of 174
Carlsbad Costco Fuel Station Expansion Transportation Impact Study Findings & Recommendations
August 14, 2025
Kittelson & Associates, Inc. Page 48
TRANSIT MMLOS
The Transit MMLOS analysis for the Project frontage along Palomar Airport Road resulted in LOS F because
the bus stops lack benches, which is an essential amenity. To meet the acceptable LOS D, the project
would be responsible for the implementation of benches at the following bus stops:
•Palomar Airport Road eastbound direction between Paseo del Norte and Armada Drive (by Carl’s Junior)
•Palomar Airport Road westbound direction east of Armada Drive (NE corner of the intersection).
CITY OF CARLSBAD GENERAL PLAN CONSISTENCY
As described in the City’s Traffic Impact Study Guidelines, “The General Plan allows for exemptions to the
levels of service standards when specific criteria are met. These exemptions require mitigation measures
that rely on management tools that include: a) Transportation Demand Management (TDM) strategies that
provide goods and services to the public in a way that reduces the demand for auto travel- especially
during peak periods; and b) Transportation Systems Management (TSM) strategies that improve traffic flow
so that people can travel in autos more efficiently without widening roadways.”
The project would add more than 11 peak hour trips and 110 daily trips to Palomar Airport Road, which is
an “exempt road segment” in the City of Carlsbad Geneal Plan Mobility Element. Per the City’s Mobility
Element Policy 3-P.11, the project will be subject to implementing a TDM plan and TSM strategies.
The TDM plan was prepared to encourage employees and patrons to shift from driving alone to traveling
by sustainable modes. The TDM plan for the project was prepared on July 22, 2024 and approved by the
City’s Community Development Department.
The project will also extend the westbound left-turn movement storage length at the intersection of
Palomar Airport Rd / Armada Dr / Costco Access. The modification will be funded, designed and
constructed by the applicant in consultation with City of Carlsbad Public Works and consistent with City’s
requirements. This improvement will satisfy the TSM requirement.
Dec. 17, 2025 Item #1 93 of 174
Appendix A:
Scoping Agreement
Dec. 17, 2025 Item #1 94 of 174
PRE 2021-0049 (DEV2021-0253)
Costco Carlsbad Fuel Expansion
Costco Carlsbad Fuel Station - 951 Palomar Airport Road
Expansion of Existing Costco Fuel Station from 22 to 30 Fueling Positions
Kittelson & Associates, Inc.
750 The City Drive, Suite 410
Orange, CA 92868
Fernando Sotelo - 714.468.1186
Costco Wholesale
999 Lake Drive
Issaquah, WA 98027
Therese Garcia - 425.416.5158
Kittelson & Associates Costco Warehouse Database
Commercial Commercial
see Table 7 Attachment A
C-2-Q/OS C-2-Q/OS
Manual
See trip distribution and project trip
assignments figures in Attachment B
See Attachment A
see Table 7 Attachment A
Version 4 - Revised June 22, 2022
Dec. 17, 2025 Item #1 95 of 174
Armada Dr / Costco Access/Palomar Airport Rd
Costco Access / Palomar Place Shopping Center Access
See Figure 1
N/A
This study will include a transportation analysis as requested in page 5 of the comment letter dated
February 3, 2022. Attachment C describes all specific issues to be addressed in the study.
Note: Study intersections will be evaluated under E and E+P conditions
- Per City of Carlsbad TIS guidelines (Section 3.2) this project does not identify any study
roadway segments. See Figure B6 and Figure B7 for volume distribution on the surrounding
roadway network.
- Per City of Carlsbad TIS guidelines (Sections 3.2 and 7.6) this project does identify the need
for Transit MMLOS analysis along the site frontage (Palomar Airport Road - Paseo Del Norte to
Armada Drive/Costco Access) following guidelines to be provided by the City Traffic Engineer.
Per General Plan Mobility Element Policy 3-P.11 the project will add trips to Palomar Airport Road, a GMPexempt roadway segment and will be required to implement TDM/TSM strategies.
7/5/22
Dec. 17, 2025 Item #1 96 of 174
Attachment A: Trip Generation
Costco Trip Generation Database
For the past 20 years, Kittelson has maintained a database of traffic data and travel characteristics for
Costco Wholesale, include fuel stations. The database contains transportation information such as trip
rates, trip type percentages, and parking demand for Costco locations throughout the United States as
well as Canada and Mexico. The database is updated periodically each time new Costco traffic counts or
information become available to Kittelson. To best evaluate the anticipated transportation
characteristics of the Carlsbad fuel station expansion, database data collected on site was used.
The Costco transportation database contains a large quantity of data related to Costco Gasoline fuel
stations. Trip generation rates and trip type information for over 35 Costco Gasoline facilities located
throughout the US are included. Costco has invested significant effort into developing this use-specific
trip generation database for both their warehouses and their fuel stations because of the unique
characteristics of Costco member travel that exist due to membership requirements and the nature of
Costco sales. These unique elements apply to the trip generation for Costco warehouses, Costco
Gasoline fuel stations, and the interaction of trips between the two.
The Costco-specific trip generation data presented follows nationally accepted practices for trip
generation data collection as recommended by the Institute of Transportation Engineers (ITE) and
presents a robust data set upon which to predict the trip generation of the expansion of the fuel station
confidently and accurately.
Carlsbad Fuel Station Expansion Trip Generation Estimate
In developing a trip generation estimate for fuel station expansion, it is important to recognize that the
fuel station exists today, and the project is an expansion to this existing use, not the addition of a new
use. Furthermore, the market area of the Carlsbad Costco is already defined through existing
membership and operations. As such, the change in fuel station trip generation would not increase
directly in proportion to the increased number of fueling positions. Rather, the additional fueling
positions will serve to process the current peak demand at the fuel station more efficiently and
effectively, thus reducing wait times, vehicle queuing, and vehicle idling. Additionally, given the
established market in Carlsbad, the fuel station expansion does not anticipate any new Costco member
enrollment or additional warehouse trips to result from the expansion.
To best evaluate the anticipated transportation characteristics of the fuel station expansion, data from
the Costco trip generation database as well as data collected on-site were used. Kittelson reviewed
before and after data from other comparable Costco fuel station expansion sites to determine a
representative relationship between trip generation and the addition of fueling positions to an existing
fuel station.
Dec. 17, 2025 Item #1 97 of 174
Before and After Fuel Expansion Data Summary
Kittelson conducted trip generation counts at 11 other Costco fuel station locations that have expanded
in size. These locations include sites where fuel stations have expanded from 16 or 20 fueling positions
to 24 or 32 fueling positions. Of these 11 locations, the comparable expansion sites identified were:
• Santee, CA – expansion from 16 to 32 fueling positions
• Sunnyvale, CA – expansion from 20 to 30 fueling positions
• South San Francisco (SFO Airport), CA – expansion from 20 to 32 fueling positions
• South San Francisco (El Camino), CA – expansion from 16 to 32 fueling positions
These sites were selected due to their comparable number of trips prior to their fuel station expansions,
as well as their similar expansion sizing.
To work with a representative sample size, trip generation data were collected before and after the
expansion at each of these locations. Only data collected during similar months of the year before and
after the expansion were included in this summary (for example, trip generation data for the months of
March and April before the expansion were compared to trip generation data for the months of March
and April after the expansion).
The total number of weekday PM peak hour and Saturday midday peak hour trip ends counted for the
four listed sites are provided in Table 1, Table 2, and Table 3, respectively. Note the total number of trip
ends does not reflect any reductions due to internal capture (i.e., trips shared with the warehouse),
pass-by, or diverted trips.
Table 1. Weekday AM Peak Hour Trip Growth
Average Weekday AM Peak Hour Trips Generated
Location Before Expansion After Expansion % Change
Santee, CA N/A 454 N/A
Sunnyvale, CA 530 634 19.6%
South San Francisco (SFO Airport), CA N/A 610 N/A
South San Francisco (El Camino), CA N/A 608 N/A
Average - - 19.6%
Source: Kittelson & Associates, 2022
Table 2. Weekday PM Peak Hour Trip Growth
Average Weekday PM Peak Hour Trips Generated
Location Before Expansion After Expansion % Change
Santee, CA 480 758 57.9%
Sunnyvale, CA 612 846 38.2%
South San Francisco (SFO Airport), CA 688 894 29.9%
South San Francisco (El Camino), CA 550 856 55.6%
Average - - 45.4%
Source: Kittelson & Associates, 2022
Dec. 17, 2025 Item #1 98 of 174
Table 3. Saturday Midday Peak Hour Trip Growth
Average Saturday Midday Peak Hour Trips Generated
Location Before Expansion After Expansion % Change
Santee, CA 460 924 100.9%
Sunnyvale, CA 646 982 52.0%
South San Francisco (SFO Airport), CA 680 1,022 50.3%
South San Francisco (El Camino), CA 496 880 77.4%
Average - - 70.1%
Source: Kittelson & Associates, 2022
As shown in Table 1, Table 2, and Table 3, each of the sites demonstrated an increase in the number of
daily peak hour trips. However, the increase is substantively less than what would be calculated from a
direct linear relationship to the number of vehicle fueling positions. Using a linear relationship,
expanding the fuel station from 22 to 30 fueling positions would equate to an increase in activity or trip
generation of 36%. However, the actual before and after data show an average increase of 19.6%,
45.4%, and 70.1% during the weekday AM, PM, and Saturday midday peak hours, respectively.
Table 4 and Table 5 show the daily increase in trips, which range from an average of 72.1% on weekdays
to 102.3% on Saturday. It should be noted the project proposes to expand the number of fueling
positions by 8, while the % change in trips is based on higher increases in fueling positions ranging from
10 to 16. Therefore, our analysis is conservative as the % trip increase is based on data observed at
projects that proportionally had higher expansion in capacity compared to this project.
Table 4. Weekday Daily Trip Growth
Average Weekday Daily Trips Generated
Location Before Expansion After Expansion % Change
Santee, CA 4,553 9,235 102.8%
Sunnyvale, CA 7,381 10,366 40.4%
South San Francisco (SFO Airport), CA N/A 10,430 N/A
South San Francisco (El Camino), CA N/A 9,230 N/A
Average - - 72.1%
Source: Kittelson & Associates, 2022
Table 5. Saturday Daily Trip Growth
Average Saturday Midday Peak Hour Trips Generated
Location Before Expansion After Expansion % Change
Santee, CA 4,061 10,155 150.1%
Sunnyvale, CA 7,187 11,105 54.5%
South San Francisco (SFO Airport), CA N/A 11,307 N/A
South San Francisco (El Camino), CA N/A 9,696 N/A
Average - - 102.3%
Source: Kittelson & Associates, 2022
These data demonstrate that increasing the number of fueling positions at the Carlsbad Costco fuel
station will not result in a direct linear increase in trip generation. The before and after data capture the
change in demand that results from reducing peak hour queues and wait times at the fuel stations due
to latent demand and more efficient operations during peak periods. In all cases, peak queues and wait
Dec. 17, 2025 Item #1 99 of 174
times are significantly reduced. Those members who previously chose not to purchase fuel because of
the wait times will likely do so once the operations are improved.
Trip Type
The data collected at existing Costco Gasoline fuel stations indicate the trip generation characteristics
described below for internal trip capture between the fuel station and the warehouse, as well as pass-by
trips and diverted capture from the surrounding street system1. The unique nature of Costco operations
and its membership requirements result in different trip characteristics than those observed at typical
fuel stations summarized in the standard reference Trip Generation Manual, published by the Institute
of Transportation Engineers (ITE). The percentages of pass-by or diverted trips at Costco fuel stations is
considerably lower than those quoted in the ITE Trip Generation Manual for typical fuel stations.
Correspondingly, membership requirements also have a significant effect on trip internalization (or
sharing of trips) between the warehouse and the fuel station. Fewer people exclusively visit a Costco
fuel station (in comparison to a typical standalone fuel station) because they have another primary
purpose for visiting the site (that being a trip to the warehouse).
Internal Trips
A key finding from the studies conducted at Costco facilities is the fact that approximately 35% of the
PM peak hour trips to and from Costco fuel stations and 40% of the Saturday midday trips are internal
capture trips. Internal capture trips account for those members who patronize both the warehouse and
the gasoline pumps during a single visit to the Costco site. As such, although they account for a trip to
both the warehouse and the fuel station, they only account for one overall vehicle trip to the site and on
the surrounding transportation system. Based on studies including surveys at Costco fuel stations and
membership card transaction data, on average 35% and 40% of the members buying gas during the
weekday PM peak hour and Saturday midday peak hour, respectively, are members whose main
purpose to the site is to visit the Costco warehouse. At some sites this number ranges as high as 75%.
However, to remain conservative, the average rates are applied to this analysis. Since Costco
warehouses do not typically open until after the AM peak hour, there is no internalized trips during the
AM peak hour and thus no rate is applied.
Pass-By Trips
Pass-by trips represent members (and trips) that are currently traveling on the surrounding street
network for some other primary purpose (such as a trip from work to home) and stop into the site en
route during their normal travel. As such, pass-by trips do not result in a net increase in traffic on the
surrounding transportation system and their only effect occurs at the immediate intersections and site
access driveways where they become turning movements. Based on studies of customer surveys at
Costco Gasoline fuel stations, on average 36% and 31% of the members buying gas during the weekday
AM and PM peak hours, respectively, and 30% during the Saturday midday peak hour can be classified
as pass-by trip capture from the surrounding street system. This is lower than the average pass-by rate
1 Trip type data is based on member surveys conducted at Costco fuel stations during the weekday AM peak hour
at 3 sites in 2018 as well as surveys conducted during the weekday PM and Saturday midday peak hours at a total
of 26 Costco sites in 2021.
Dec. 17, 2025 Item #1 100 of 174
quoted in the ITE Trip Generation Manual for typical service stations (45%) and is attributed to the
unique travel characteristics that result from Costco’s membership requirements.
Diverted Trips
Diverted trips are similar to pass-by trips in that they represent members (and trips) that are currently
traveling on the surrounding street network for some other primary purpose and stop into the site en
route during their normal travel. However, as the name indicates, diverted trips divert from the normal
roadways that would be traveling on the go to the Costco site. Based on studies of customer surveys at
Costco Gasoline fuel stations, on average 40% of the members buying gas during the weekday AM and
PM peak hours, and 35% during the Saturday midday peak hour can be classified as diverted trip capture
from the surrounding street system.
For the purposes of this study, the diverted trips will be treated as net new trips to the two study
intersections recognizing the diversion occurs further away from the Costco site.
Fuel Station Expansion Trip Generation Estimate
At the existing Carlsbad Costco Gasoline fuel station arrival data was collected between 7:00 AM and
9:00 AM and between 4:00 PM and 6:00 PM on a typical weekday in March 2022. Data was also
collected between 11:00 AM and 2:00 PM on a typical Saturday in March 2022. Under existing
conditions, the Carlsbad Gasoline fuel station generates approximately 612 total trip ends (or 306
vehicles) during the traditional AM peak hour, 594 total trip ends (or 297 vehicles) during the traditional
PM peak hour, and 598 total trip ends (or 299 vehicles) during the traditional Saturday midday peak
hour. Note, intersection peak hours for both study intersections are assumed to correspond with the
weekday AM, weekday PM, and Saturday midday peak hours of the surrounding network and have been
determined based on the peak hours of the Armada Drive / Costco Access / Palomar Airport Road
intersection. Volume development figures are included in Attachment B. Figure B1 presents the existing
peak hour traffic volumes at study intersections.
Applying this data to historical data summarized from comparable trips in the Costco Database (Tables 1
through 5), the observed increase in activity from other Costco Gasoline expansion sites to the existing
trip generation provides an estimate of the expected number of additional fuel station total trips that
will result from the Carlsbad fuel expansion from 22 fueling positions to 30 fueling positions. Table 6
summarizes the trip generation estimates of the fuel station for the weekday AM and PM peak hours
and Saturday midday peak hour excluding diverted trips. At the request of the City of Carlsbad this study
anticipates performing analysis of the traditional AM (7 AM – 9 AM), traditional PM (4 PM – 7 PM), and
traditional Saturday midday (11 AM – 2 PM) peak hours. The trip generation and all study intersection
volumes are derived from the same time during each period, corresponding to the highest 1-hour traffic
volumes of the surrounding network within each peak period.
Dec. 17, 2025 Item #1 101 of 174
Table 6. Carlsbad Costco Fuel Expansion Trip Generation Estimate for Study Intersection Analysis -
Weekday AM and PM Peak Hours
Trip Generation Estimate: Fuel Expansion from 22 Fueling Positions to 30 Fueling Positions
Trip Type Weekday AM Peak
Hour Trip Ends
Weekday PM Peak
Hour Trip Ends
Saturday Midday
Peak Hour Trip Ends
Existing Gas Facility Trip Ends 612 594 598
Gas Facility Expansion % Change 19.6% 45.4% 70.1%
Total In Out Total In Out Total In Out
Unadjusted Gas Expansion Trip Ends1 120 60 60 270 135 135 419 210 209
Internal Trips2
(0% AM, 35% PM, 40% Sat) 0 0 0 (94) (47) (47) (168) (84) (84)
Gas Expansion Trip Ends3 120 60 60 176 88 88 251 126 125
Pass-By Trips4,5
(36% AM, 31% PM, 30% Sat) (42) (21) (21) (54) (27) (27) (74) (37) (37)
Net New Trip Ends6 78 39 39 122 61 61 177 89 88
1 Unadjusted trip ends are new trips occurring at the fuel facility without adjustments for internal capture with the warehouse
2 Internalization percentages derived by averaging the analysis results of transaction data collected in 2021 from Costco at 22 sites with existing
fuel stations.
3 Gas Expansion Trip Ends are trips occurring outside the area between the fuel facility and the warehouse, which exclude internal trip capture.
Gas Expansion Trip Ends turn movement volumes are depicted in Figure B5.
4 Pass-by percentages derived by averaging the results of Costco member surveys conducted during the weekday AM, weekday PM, and
Saturday midday peak hours at existing fuel stations during 2018 (3 sites) and 2021 (26 sites).
5 Pass-by Trip turn movement volumes are depicted in Figure B4.
6 Net New Trip Ends turn movement volumes are depicted in Figure B3. For the purposes of evaluating operations at the two study intersection
operations, no trip credits were taken for diverted trips. Adjustments were made at the intersection of Palomar Airport Road to account for trip
patterns changes related to pass-by trips.
As can be seen from Table 6, the additional fueling positions are estimated to generate approximately
120 additional weekday AM peak hour new gas trip ends, 176 additional weekday PM peak hour new
gas trip ends, and 251 additional Saturday midday peak hour new gas trip ends. Figure B6 present these
volumes on adjacent roadways according to the trip distribution.
Table 7 summarizes the trip generation estimates of the fuel station for the weekday and Saturday daily
time periods for the purpose of determining study roadway segments and investigating this project’s
need to conduct a TDM analysis. Figure B7 present these volumes on adjacent roadways according to
the trip distribution.
As can be seen from Table 7, the additional fueling positions are estimated to generate approximately
1,938 additional weekday daily new gas trip ends and 2,357 additional Saturday daily new gas trip ends.
Dec. 17, 2025 Item #1 102 of 174
Table 7. Carlsbad Costco Fuel Expansion Trip Generation Estimate for Study Intersection Analysis -
Weekday and Saturday Daily
Trip Generation Estimate: Fuel Expansion from 22 Fueling Positions to 30 Fueling Positions
Trip Type Weekday Daily Trip Ends Saturday Daily Trip Ends
Existing Gas Facility Trip Ends 4,162 3,841
Gas Facility Expansion % Change 71.6% 102.3%
Total In Out Total In Out
Unadjusted Gas Expansion Trip Ends1 2,982 1,491 1,491 3,929 1,965 1,964
Internal Trips2
(35% PM, 40% Sat) (1,044) (522) (522) (1,572) (786) (786)
Gas Expansion Trip Ends3 1,938 969 969 2,357 1,179 1,178
Pass-By Trips4
(31% PM, 30% Sat) (601) (300) (301) (707) (354) (353)
Net New Trip Ends5 1,337 669 668 1,650 825 825
1 Unadjusted trip ends are new trips occurring at the fuel facility without adjustments for internal capture with the warehouse
2 Internalization percentages derived by averaging the analysis results of transaction data collected in 2021 from Costco at 22 sites with existing
fuel stations. Internalization percentage for weekday PM peak applied to weekday daily calculations and internalization percentage for
Saturday midday peak applied to Saturday daily calculations.
3 Gas Expansion Trip Ends are trips occurring outside the area between the fuel facility and the warehouse, which exclude internal trip capture.
4 Pass-by percentages derived by averaging the results of Costco member surveys conducted during the weekday AM, weekday PM, and
Saturday midday peak hours at existing fuel stations during 2018 (3 sites) and 2021 (26 sites). Pass-by percentage for weekday PM peak applied
to weekday daily calculations and pass-by percentage for Saturday midday peak applied to Saturday daily calculations.
5 For the purposes of evaluating operations at the two study intersection operations, no trip credits were taken for diverted trips. Adjustments
were made at the intersection of Palomar Airport Road to account for trip patterns changes related to pass-by trips.
Trip Distribution Pattern & Trip Assignment
The trip distribution pattern for the Costco fuel expansion was estimated based on site observations, a
review of the circulation network and the existing turn movement volumes2.
Figure B2.1 and Figure B2.2 present the project’s trip distribution and routing assumptions. The gas
expansion trip ends line in Table 6 corresponds to the total number of new trips added to the
intersection taking into account internal capture with the warehouse and are depicted in Figure B3.
For the purposes of evaluating intersection operations no credits were taken for diverted trips, as these
trips would still occur at the study intersections. Adjustments were made at the intersection of Palomar
Airport Road to account for trip patterns changes related to pass-by trips. Net new trips are depicted in
Figure B3, and the pass-by adjustments are depicted in Figure B4. The gas expansion trips are depicted
in Figure B5.
We note that future assessment of air pollutant and greenhouse gas emissions, if required, should
consider the reduction in total new off-site trips related to diverted trips that are traveling the roadway
system today and will simply divert to the Costco fuel expansion site.
2 City staff requested a trip distribution comparison to the original Costco Warehouse traffic study. It appears the Costco
warehouse opened in 1992 and we have been unable to locate a copy of that study. Recognizing the study would likely be over
20 years old, we have not provided the requested comparison and instead relied on current traffic patterns to estimate the
distribution pattern.
Dec. 17, 2025 Item #1 103 of 174
Transportation Demand Management (TDM) Plan Considerations
As shown in Figure B6 and Figure B7, the project adds more than 110 daily trips and more than 11 peak
hour trips to Palomar Airport Road, a Level of Service exempt roadway per Mobility Element Policy 3-
P.11. As such, a TDM plan is required.
Dec. 17, 2025 Item #1 104 of 174
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Existing Year 2022 Lane Configurations,
Traffic Control Devices and Traffic Volumes
AM & PM Peak Hours, Saturday Midday Peak Hour B1
Carlsbad Costco Gas Expansion June 2022
Figure
1
- Study Intersections#
- Stop Sign
- Traffic Signal
Palomar Airport Road / Armada Drive / Costco Access
Armada Drive / Costco Access / Palomar Place Shopping Center Access
LANE CONFIG AM VOLUME PM VOLUME SAT VOLUME
2 LANE CONFIG AM VOLUME PM VOLUME SAT VOLUME
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Dec. 17, 2025 Item #1 105 of 174
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Trip Distribution &
Inbound Traffic Patterns B2.1
Carlsbad Costco Gas Expansion June 2022
Figure
45%
10%
- Study Intersections#
- Inbound Trip Route
35%
10%
Trip Distribution assumptions developed based on existing trafficpatterns as demonstrated by March 2022 traffic counts and traffic
patterns observed on site by project team at and around the fuel station.
Dec. 17, 2025 Item #1 106 of 174
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Trip Distribution &
Outbound Traffic Patterns B2.2
Carlsbad Costco Gas Expansion June 2022
Figure
10%
90%
- Outbound Trip Route
- Study Intersections#
55%35%
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Trip Distribution assumptions developed based on existing trafficpatterns as demonstrated by March 2022 traffic counts and traffic
patterns observed on site by project team at and around the fuel station.
Dec. 17, 2025 Item #1 107 of 174
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Net New Trip Ends
AM & PM Peak Hours, Saturday Midday Peak Hour B3
Carlsbad Costco Gas Expansion June 2022
Figure- Study Intersections#
AM VOLUME PM VOLUME SAT VOLUME1
AM VOLUME PM VOLUME SAT VOLUME2
Palomar Airport Road / Armada Drive / Costco Access
Armada Drive / Costco Access / Palomar Place Shopping Center Access
17 14
42114
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Traffic Volumes are assumed to follow the inbound / outbound trip
distributions provided in Figures B2.1 and B2.2. Volumes have beenassumed through the Internal Costco Driveway / Carls Jr Driveway.
4 / 6 / 9
- AM / PM / SAT
Dec. 17, 2025 Item #1 108 of 174
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Pass-By Trips
AM & PM Peak Hours, Saturday Midday Peak Hour B4
Carlsbad Costco Gas Expansion June 2022
Figure- Study Intersections#
AM VOLUME PM VOLUME SAT VOLUME1
AM VOLUME PM VOLUME SAT VOLUME2
Palomar Airport Road / Armada Drive / Costco Access
Armada Drive / Costco Access / Palomar Place Shopping Center Access
-1210 -77
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Traffic Volumes are assumed to follow the inbound / outbound trip
distributions provided in Figures B2.1 and B2.2. Volumes have beenassumed through the Internal Costco Driveway / Carls Jr Driveway.
2 / 3 / 4
- AM / PM / SAT
Dec. 17, 2025 Item #1 109 of 174
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Gas Expansion Trip Ends
(Net New Trips (Figure B3) + Pass-By Trips (Figure B4))
AM & PM Peak Hours, Saturday Midday Peak Hour B5
Carlsbad Costco Gas Expansion June 2022
Figure
AM VOLUME PM VOLUME SAT VOLUME1
AM VOLUME PM VOLUME SAT VOLUME2
- Study Intersections#
Palomar Airport Road / Armada Drive / Costco Access
Armada Drive / Costco Access / Palomar Place Shopping Center Access
54
54
6
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-1-29
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-2-213
53639
44-1356-20
79
79
9
9
11
3
11
2
13
13
Traffic Volumes are assumed to follow the inbound / outbound trip
distributions provided in Figures B2.1 and B2.2. Volumes have beenassumed through the Internal Costco Driveway / Carls Jr Driveway.
- AM / PM / SAT
6 / 9 / 13
Dec. 17, 2025 Item #1 110 of 174
1
PALOMAR AIRPORT ROAD
PA
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Site Generated Trip Assignment by Roadway Segment
AM & PM Peak Hours, Saturday Midday Peak Hour B6
Carlsbad Costco Gas Expansion June 2022
Figure- Study Intersections#
21 / 34 / 48
21 / 34 / 49
18 / 27 / 39
18 / 27 / 40
10 / 15 / 21
10 / 15 / 22
2 / 3 /
32 / 3 /
4
8 /
1
2
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8
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81 / 21 / 8
14 / 21 / 31
14 / 21 / 31
4 /
6
/
9
4
/
6
/
9
35%
10%
10%
20%
20%
5%
- AM / PM / SAT
Dec. 17, 2025 Item #1 111 of 174
1
PALOMAR AIRPORT ROAD
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Site Generated Trip Assignment by Roadway Segment
Weekday Daily & Saturday Daily B7
Carlsbad Costco Gas Expansion June 2022
Figure- Study Intersections#
367 / 453
368 / 453
300 / 371
301 / 371
166 / 206
167 / 206
32 / 4
133 / 41
13
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234 / 289
234 / 289
67
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8
3
35%
10%
10%
20%
20%
5%
- Weekday / Saturday
Dec. 17, 2025 Item #1 112 of 174
Attachment C: Specific Issues
As required in the preliminary review letter provided by the City of Carlsbad on February 3, 2022, the
following analyses will be included in the Local Mobility Analysis (LMA):
1. A queuing analysis of the gas station service area to determine potential for impacts to the
intersection of Palomar Airport Rd. / Armada Dr. including the following elements:
a. Provide a queuing analysis during the peak periods (AM, PM, Saturday) of the gas station
under existing conditions and existing with project conditions;
b. Determine the average service time for a vehicle to fuel (in minutes);
c. Determine the average arrival rate of vehicles at the fueling station or at each pump; and
d. Conduct field survey of existing queueing.
2. Analyze signalized intersection of Palomar Airport Road / Armada Drive-Costco Access (LOS and
queuing).
3. Analyze internal stop-controlled intersection immediately south of the signalized intersection on
Palomar Airport Road during gas station peak.
4. Provide recommendations for striping at the approach to the gas station to better distribute vehicles.
5. Provide a traffic distribution of vehicles entering and exiting the gas station at the access points via
Palomar Airport Road.
In addition, per subsequent discussions with City staff, we will:
6. Review the potential for queues at the eastbound approach at internal stop-controlled intersection
immediately south of the signalized intersection on Palomar Airport Road (#2) to block internal
intersections.
7. Assess whether a TDM Plan will be required of the project per Mobility Element Policy 3-P.11.
8. Conduct Transit MMLOS along the site frontage of Palomar Airport Road (from Paseo Del Norte to
Armada Drive/Costco Access).
Transaction datafiles and queue and traffic counts worksheets will be provided in the LMA.
Dec. 17, 2025 Item #1 113 of 174
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Proposed Site Plan
Carlsbad, California 1
Carlsbad Costco Gas Expansion May 2022
Figure
Dec. 17, 2025 Item #1 114 of 174
Appendix B:
Traffic Count Data
Dec. 17, 2025 Item #1 115 of 174
Type of peak hour being reported: Intersection Peak Method for determining peak hour: Total Entering Volume
LOCATION: LOCATION: Armada Dr/Costco Access -- Palomar Airport Rd QC JOB #: QC JOB #: 15736717
CITY/STATE: CITY/STATE: Carlsbad, CA DATE: DATE: Tue, Mar 15 2022
160 244
56 55 49
1059 118 109 1112
1625 0.940.94 860
1947 204 143 1856
125 35 181
401 341
Peak-Hour: 8:00 AM -- 9:00 AMPeak-Hour: 8:00 AM -- 9:00 AM
Peak 15-Min: 8:00 AM -- 8:15 AMPeak 15-Min: 8:00 AM -- 8:15 AM
3.8 0.8
7.1 0 4.1
4.8 0 1.8 4.3
3.3 5.2
3 2 0.7 3.1
1.6 0 0.6
1.2 0.9
0
0 1
1
0 0 0
0 0
3 1
0 0
0 0 0
N/A
N/A N/A
N/A
N/A
N/A N/A
N/A
5-Min Count5-Min CountPeriod Period Beginning AtBeginning At
Armada Dr/Costco AccessArmada Dr/Costco Access
(Northbound)(Northbound)
Armada Dr/Costco AccessArmada Dr/Costco Access
(Southbound)(Southbound)
Palomar Airport RdPalomar Airport Rd
(Eastbound)(Eastbound)
Palomar Airport RdPalomar Airport Rd
(Westbound)(Westbound)TotalTotal HourlyHourlyTotalsTotalsLeftLeftThruThruRightRightUULeftLeftThruThruRightRightUULeftLeftThruThruRightRightUULeftLeftThruThruRightRightUU
7:00 AM 13 2 11 0 2 1 4 0 2 99 15 0 12 74 1 0 236
7:05 AM 8 1 6 0 1 2 2 0 2 69 16 0 8 49 5 0 169
7:10 AM 14 0 13 0 0 4 2 0 3 64 15 0 7 45 8 0 175
7:15 AM 10 3 19 0 0 6 3 0 5 95 15 2 9 72 8 0 247
7:20 AM 21 3 13 0 4 2 1 0 3 95 15 0 5 63 10 0 235
7:25 AM 4 3 13 0 1 2 2 0 4 94 13 0 6 71 6 0 219
7:30 AM 13 1 14 0 4 5 5 0 4 76 9 1 6 42 2 1 183
7:35 AM 6 2 15 0 4 3 1 0 7 75 16 1 8 57 5 0 2007:40 AM 6 1 12 0 5 3 8 0 5 146 18 2 6 106 8 0 326
7:45 AM 11 5 16 0 2 1 5 0 5 72 12 1 14 63 8 0 215
7:50 AM 12 5 21 0 7 3 2 0 5 140 2 0 5 80 13 0 295
7:55 AM 3 0 7 0 2 6 4 0 14 82 13 1 16 43 15 0 206 2706
8:00 AM 7 3 12 0 1 7 3 0 5 133 17 1 11 104 16 0 320 2790
8:05 AM 12 7 16 0 5 2 3 0 5 150 20 3 6 53 5 0 287 2908
8:10 AM 4 3 14 0 2 4 8 0 16 180 17 2 9 70 10 0 339 3072
8:15 AM 14 2 16 0 6 7 4 0 6 76 10 2 6 69 6 0 224 3049
8:20 AM 8 3 18 0 5 3 3 0 9 109 14 0 15 88 7 0 282 3096
8:25 AM 11 1 12 0 4 2 5 0 5 134 17 0 8 84 9 0 292 3169
8:30 AM 11 2 10 0 3 2 3 0 9 171 18 1 17 52 7 0 306 3292
8:35 AM 11 1 12 0 2 4 4 0 10 141 22 3 16 85 4 0 315 3407
8:40 AM 14 5 21 0 9 8 9 0 5 145 11 0 12 64 11 0 314 3395
8:45 AM 14 3 17 0 4 6 5 0 6 108 19 1 9 37 6 1 236 3416
8:50 AM 9 3 18 0 2 6 6 0 12 148 15 2 10 62 12 0 305 3426
8:55 AM 10 2 15 0 6 4 3 0 12 130 24 3 23 92 16 0 340 3560
Peak 15-MinPeak 15-MinFlowratesFlowrates
NorthboundNorthbound SouthboundSouthbound EastboundEastbound WestboundWestbound TotalTotalLeftLeftThruThruRightRightUULeftLeftThruThruRightRightUULeftLeftThruThruRightRightUULeftLeftThruThruRightRightUU
All Vehicles 92 52 168 0 32 52 56 0 104 1852 216 24 104 908 124 0 3784
Heavy Trucks 4 0 0 8 0 8 0 48 4 0 40 4 116
Buses
Pedestrians 0 0 0 0 0
Bicycles 0 0 0 0 0 0 0 4 0 0 0 0 4
Scooters
Comments:
Report generated on 4/7/2022 4:30 PM SOURCE: Quality Counts, LLC (http://www.qualitycounts.net) 1-877-580-2212
Page 1 of 1Dec. 17, 2025 Item #1 116 of 174
Type of peak hour being reported: Intersection Peak Method for determining peak hour: Total Entering Volume
LOCATION: LOCATION: Armada Dr/Costco Access -- Palomar Airport Rd QC JOB #: QC JOB #: 15736701
CITY/STATE: CITY/STATE: Carlsbad, CA DATE: DATE: Tue, Mar 15 2022
354 339
158 65 131
2212 204 126 2043
961 0.930.93 1668
1328 163 249 1347
325 69 252
473 646
Peak-Hour: 4:50 PM -- 5:50 PMPeak-Hour: 4:50 PM -- 5:50 PM
Peak 15-Min: 5:10 PM -- 5:25 PMPeak 15-Min: 5:10 PM -- 5:25 PM
0 1.5
0 0 0
1 2 0.8 1.2
1.5 1.4
1.4 0.6 0.4 1.2
0 0 0.8
0.4 0.3
10
2 0
2
0 0 0
0 0
1 3
0 0
0 0 0
N/A
N/A N/A
N/A
N/A
N/A N/A
N/A
5-Min Count5-Min CountPeriod Period Beginning AtBeginning At
Armada Dr/Costco AccessArmada Dr/Costco Access
(Northbound)(Northbound)
Armada Dr/Costco AccessArmada Dr/Costco Access
(Southbound)(Southbound)
Palomar Airport RdPalomar Airport Rd
(Eastbound)(Eastbound)
Palomar Airport RdPalomar Airport Rd
(Westbound)(Westbound)TotalTotal HourlyHourlyTotalsTotalsLeftLeftThruThruRightRightUULeftLeftThruThruRightRightUULeftLeftThruThruRightRightUULeftLeftThruThruRightRightUU
4:00 PM 21 8 15 2 14 4 18 0 11 61 14 4 17 111 6 0 306
4:05 PM 33 5 21 0 8 2 13 0 12 78 15 4 19 109 9 0 328
4:10 PM 25 0 21 0 10 4 7 0 7 87 24 5 24 126 11 0 351
4:15 PM 27 9 19 0 8 3 11 0 10 50 19 5 17 149 10 0 337
4:20 PM 22 3 20 0 7 3 17 0 11 100 16 4 26 166 4 0 399
4:25 PM 38 6 22 0 12 4 12 0 13 50 12 8 36 77 4 2 296
4:30 PM 41 2 19 0 14 4 8 0 10 83 20 6 16 123 7 0 353
4:35 PM 43 7 29 0 9 1 15 1 7 82 11 8 19 135 13 1 3814:40 PM 31 2 25 0 11 2 15 0 9 76 9 9 23 161 11 0 384
4:45 PM 31 1 10 0 8 3 5 0 11 59 19 5 16 112 3 0 283
4:50 PM 22 4 21 0 7 2 11 0 11 81 16 9 27 131 7 0 3494:55 PM 15 6 25 0 5 7 13 0 11 76 10 7 16 117 14 0 322 4089
5:00 PM 29 7 30 0 15 2 16 0 9 77 15 1 18 153 11 0 383 4166
5:05 PM 31 7 19 0 17 7 15 0 21 88 9 4 18 113 9 1 359 4197
5:10 PM 28 8 18 0 16 9 13 0 9 56 14 8 20 155 21 1 376 4222
5:15 PM 27 5 18 0 6 3 13 0 21 94 14 3 20 163 14 1 402 4287
5:20 PM 29 6 25 0 10 11 14 0 14 90 18 3 12 155 15 0 402 4290
5:25 PM 28 4 20 0 13 5 8 0 17 76 14 9 20 123 9 0 346 4340
5:30 PM 38 7 21 0 17 2 7 0 9 88 9 3 14 145 12 0 372 4359
5:35 PM 30 2 21 0 10 9 19 0 9 59 12 6 23 144 5 1 350 4328
5:40 PM 27 9 20 0 9 4 12 1 5 87 13 6 26 126 5 0 350 4294
5:45 PM 21 4 14 0 5 4 17 0 7 89 19 2 31 143 4 0 360 4371
5:50 PM 32 7 19 0 10 5 14 0 17 83 10 5 15 100 8 0 325 4347
5:55 PM 30 4 23 0 8 13 24 0 14 74 13 7 13 113 10 0 346 4371
Peak 15-MinPeak 15-MinFlowratesFlowrates
NorthboundNorthbound SouthboundSouthbound EastboundEastbound WestboundWestbound TotalTotalLeftLeftThruThruRightRightUULeftLeftThruThruRightRightUULeftLeftThruThruRightRightUULeftLeftThruThruRightRightUU
All Vehicles 336 76 244 0 128 92 160 0 176 960 184 56 208 1892 200 8 4720
Heavy Trucks 0 0 0 0 0 0 4 20 0 0 40 4 68
Buses
Pedestrians 4 4 0 0 8
Bicycles 0 0 0 0 0 0 0 0 0 0 0 0 0
Scooters
Comments:
Report generated on 4/7/2022 4:29 PM SOURCE: Quality Counts, LLC (http://www.qualitycounts.net) 1-877-580-2212
Page 1 of 1Dec. 17, 2025 Item #1 117 of 174
Type of peak hour being reported: Intersection Peak Method for determining peak hour: Total Entering Volume
LOCATION: LOCATION: Armada Dr/Costco Access -- Palomar Airport Rd QC JOB #: QC JOB #: 15736702
CITY/STATE: CITY/STATE: Carlsbad, CA DATE: DATE: Sat, Mar 12 2022
244 314
139 66 39
1692 263 111 1411
761 0.920.92 1038
1238 214 262 1067
379 76 263
538 718
Peak-Hour: 11:35 AM -- 12:35 PMPeak-Hour: 11:35 AM -- 12:35 PM
Peak 15-Min: 12:15 PM -- 12:30 PMPeak 15-Min: 12:15 PM -- 12:30 PM
0.4 0.3
0.7 0 0
0.5 0 0.9 0.6
1.2 0.7
0.9 0.9 0 0.8
0.3 0 0
0.4 0.1
3
0 0
1
0 0 2
0 0
4 6
0 0
0 0 0
N/A
N/A N/A
N/A
N/A
N/A N/A
N/A
5-Min Count5-Min CountPeriod Period Beginning AtBeginning At
Armada Dr/Costco AccessArmada Dr/Costco Access
(Northbound)(Northbound)
Armada Dr/Costco AccessArmada Dr/Costco Access
(Southbound)(Southbound)
Palomar Airport RdPalomar Airport Rd
(Eastbound)(Eastbound)
Palomar Airport RdPalomar Airport Rd
(Westbound)(Westbound)TotalTotal HourlyHourlyTotalsTotalsLeftLeftThruThruRightRightUULeftLeftThruThruRightRightUULeftLeftThruThruRightRightUULeftLeftThruThruRightRightUU
11:00 AM 23 6 29 0 3 7 7 0 16 74 19 16 21 55 9 0 285
11:05 AM 23 5 23 1 3 3 10 0 10 52 14 9 9 89 17 0 268
11:10 AM 31 4 18 0 3 8 7 0 9 70 12 5 31 74 8 0 280
11:15 AM 31 1 20 0 2 5 12 0 12 69 19 9 24 60 10 0 274
11:20 AM 22 5 16 0 3 6 10 0 6 53 16 8 21 73 8 0 247
11:25 AM 37 5 30 0 3 8 4 0 8 52 18 8 26 74 9 1 283
11:30 AM 22 4 31 0 2 3 9 0 15 58 18 12 31 50 9 0 264
11:35 AM 17 2 21 0 0 3 11 0 14 60 19 10 24 118 7 1 307
11:40 AM 38 4 19 0 1 9 10 0 17 67 14 14 27 70 9 0 299
11:45 AM 28 3 36 0 5 4 11 0 11 49 25 10 11 79 2 0 274
11:50 AM 33 12 20 0 3 7 14 0 8 58 20 6 19 53 5 0 25811:55 AM 30 1 12 0 3 11 14 0 7 59 20 14 28 84 8 1 292 3331
12:00 PM 51 7 18 0 6 3 13 0 2 61 17 8 17 79 9 0 291 3337
12:05 PM 28 7 27 0 4 6 13 0 10 69 6 19 12 76 6 0 283 3352
12:10 PM 34 5 10 0 4 1 5 0 8 76 17 10 25 103 9 0 307 3379
12:15 PM 23 8 29 0 1 9 12 0 13 71 24 11 26 93 21 0 341 3446
12:20 PM 39 11 22 0 2 6 12 0 3 60 17 7 16 97 8 0 300 3499
12:25 PM 28 7 29 0 3 6 13 0 18 66 16 10 30 92 16 1 335 3551
12:30 PM 30 9 20 0 7 1 11 0 16 65 19 17 23 94 11 1 324 3611
12:35 PM 31 6 20 0 2 3 11 0 9 69 19 5 18 60 18 0 271 3575
12:40 PM 29 3 26 0 4 3 10 0 11 55 23 4 11 103 3 1 286 3562
12:45 PM 18 7 21 0 3 5 11 0 11 54 20 10 29 62 10 0 261 3549
12:50 PM 35 7 14 0 6 7 6 0 8 81 13 9 30 60 9 0 285 3576
12:55 PM 30 6 14 0 4 4 8 0 7 83 25 13 15 73 7 0 289 3573
1:00 PM 36 9 21 0 13 6 14 0 11 48 18 20 28 38 9 0 271 3553
1:05 PM 31 6 17 0 4 8 10 0 6 62 15 8 11 55 9 1 243 3513
1:10 PM 37 5 24 0 3 4 4 0 13 79 21 8 31 102 3 1 335 3541
1:15 PM 25 4 33 1 5 9 8 0 10 63 17 14 15 67 4 0 275 3475
1:20 PM 25 6 27 0 3 3 11 0 9 71 20 20 27 43 9 0 274 3449
1:25 PM 37 5 23 0 4 4 15 0 11 62 20 11 19 82 7 0 300 3414
1:30 PM 38 7 30 0 3 2 10 1 5 74 16 5 14 90 5 0 300 3390
1:35 PM 31 5 33 0 4 2 5 0 8 86 16 10 20 78 3 1 302 3421
1:40 PM 25 7 31 0 3 3 14 0 16 63 14 18 16 76 8 0 294 3429
1:45 PM 34 5 26 0 7 5 17 0 12 67 20 12 20 63 8 0 296 3464
1:50 PM 34 6 24 0 7 2 9 0 15 70 11 9 25 82 10 0 304 3483
1:55 PM 35 6 21 0 2 1 16 0 12 58 9 17 18 59 10 0 264 3458
Page 1 of 2Dec. 17, 2025 Item #1 118 of 174
Peak 15-MinPeak 15-MinFlowratesFlowrates
NorthboundNorthbound SouthboundSouthbound EastboundEastbound WestboundWestbound TotalTotalLeftLeftThruThruRightRightUULeftLeftThruThruRightRightUULeftLeftThruThruRightRightUULeftLeftThruThruRightRightUU
All Vehicles 360 104 320 0 24 84 148 0 136 788 228 112 288 1128 180 4 3904
Heavy Trucks 0 0 0 0 0 4 0 12 4 0 8 0 28
Buses
Pedestrians 4 0 0 0 4
Bicycles 0 0 0 4 0 0 0 4 0 0 4 0 12
Scooters
Comments:
Report generated on 4/7/2022 4:30 PM SOURCE: Quality Counts, LLC (http://www.qualitycounts.net) 1-877-580-2212
Page 2 of 2Dec. 17, 2025 Item #1 119 of 174
Type of peak hour being reported: Intersection Peak Method for determining peak hour: Total Entering Volume
LOCATION: LOCATION: Armada Dr/Costco Access -- Palomar Place Shopping Center Access QC JOB #: QC JOB #: 15736718
CITY/STATE: CITY/STATE: Carlsbad, CA DATE: DATE: Tue, Mar 15 2022
405 343
100 302 3
101 119 0 0
0 0.920.92 0
131 12 0 0
1 221 0
314 222
Peak-Hour: 8:00 AM -- 9:00 AMPeak-Hour: 8:00 AM -- 9:00 AM
Peak 15-Min: 8:35 AM -- 8:50 AMPeak 15-Min: 8:35 AM -- 8:50 AM
1.2 0.9
1 1.3 0
1 0.8 0 0
0 0
0.8 0 0 0
0 0.9 0
1.3 0.9
0
0 0
1
0 0 0
0 0
0 0
0 0
0 0 0
N/A
N/A N/A
N/A
N/A
N/A N/A
N/A
5-Min Count5-Min CountPeriod Period Beginning AtBeginning At
Armada Dr/Costco AccessArmada Dr/Costco Access
(Northbound)(Northbound)
Armada Dr/Costco AccessArmada Dr/Costco Access
(Southbound)(Southbound)
Palomar Place ShoppingPalomar Place Shopping
Center AccessCenter Access
(Eastbound)(Eastbound)
Palomar Place ShoppingPalomar Place Shopping
Center AccessCenter Access
(Westbound)(Westbound)TotalTotal HourlyHourlyTotalsTotals
LeftLeft ThruThru RightRight UU LeftLeft ThruThru RightRight UU LeftLeft ThruThru RightRight UU LeftLeft ThruThru RightRight UU
7:00 AM 0 17 0 0 0 22 5 0 7 0 0 0 0 0 0 0 51
7:05 AM 0 16 0 0 0 25 5 0 6 0 1 0 0 0 0 0 53
7:10 AM 0 20 0 0 0 20 4 0 10 0 1 0 0 0 0 0 55
7:15 AM 0 20 0 0 0 22 10 0 7 0 0 0 0 0 0 0 59
7:20 AM 0 20 0 0 0 15 5 0 13 0 1 0 0 0 0 0 547:25 AM 0 16 0 0 0 19 2 0 10 0 1 0 0 0 0 0 48
7:30 AM 0 14 0 0 0 13 6 0 8 0 1 0 0 0 0 0 42
7:35 AM 0 14 0 0 0 19 5 0 9 0 2 0 0 0 0 0 49
7:40 AM 0 13 0 0 0 23 8 0 8 0 0 0 0 0 0 0 52
7:45 AM 0 23 0 0 0 19 8 0 13 0 1 0 0 0 0 0 647:50 AM 0 20 0 0 0 9 2 0 12 0 1 0 0 0 0 0 44
7:55 AM 0 8 0 0 0 19 9 0 2 0 0 0 0 0 0 0 38 609
8:00 AM 1 21 0 0 0 35 8 0 7 0 0 0 0 0 0 0 72 6308:05 AM 0 23 0 0 0 22 4 0 7 0 2 0 0 0 0 0 58 635
8:10 AM 0 16 0 0 0 23 8 0 11 0 0 0 0 0 0 0 58 638
8:15 AM 0 20 0 0 0 18 5 0 8 0 2 0 0 0 0 0 53 632
8:20 AM 0 21 0 0 0 18 7 1 8 0 0 0 0 0 0 0 55 633
8:25 AM 0 19 0 0 0 24 8 0 8 0 0 0 0 0 0 0 59 644
8:30 AM 0 14 0 0 0 30 7 0 9 0 3 0 0 0 0 0 63 665
8:35 AM 0 15 0 0 0 33 12 0 10 0 1 0 0 0 0 0 71 687
8:40 AM 0 21 0 0 0 21 10 0 13 0 3 0 0 0 0 0 68 703
8:45 AM 0 18 0 0 0 23 8 1 17 0 0 0 0 0 0 0 67 706
8:50 AM 0 17 0 0 0 22 9 0 13 0 0 0 0 0 0 0 61 723
8:55 AM 0 16 0 0 0 33 14 1 8 0 1 0 0 0 0 0 73 758
Peak 15-MinPeak 15-MinFlowratesFlowrates
NorthboundNorthbound SouthboundSouthbound EastboundEastbound WestboundWestbound TotalTotalLeftLeftThruThruRightRightUULeftLeftThruThruRightRightUULeftLeftThruThruRightRightUULeftLeftThruThruRightRightUU
All Vehicles 0 216 0 0 0 308 120 4 160 0 16 0 0 0 0 0 824
Heavy Trucks 0 0 0 0 8 4 4 0 0 0 0 0 16
Buses
Pedestrians 0 0 0 0 0
Bicycles 0 0 0 0 0 0 0 0 0 0 0 0 0
Scooters
Comments:
Report generated on 4/7/2022 4:30 PM SOURCE: Quality Counts, LLC (http://www.qualitycounts.net) 1-877-580-2212
Page 1 of 1Dec. 17, 2025 Item #1 120 of 174
Type of peak hour being reported: Intersection Peak Method for determining peak hour: Total Entering Volume
LOCATION: LOCATION: Armada Dr/Costco Access -- Palomar Place Shopping Center Access QC JOB #: QC JOB #: 15736703
CITY/STATE: CITY/STATE: Carlsbad, CA DATE: DATE: Tue, Mar 15 2022
486 682
199 285 2
199 197 0 0
0 0.920.92 0
236 39 0 0
1 483 0
325 484
Peak-Hour: 4:05 PM -- 5:05 PMPeak-Hour: 4:05 PM -- 5:05 PM
Peak 15-Min: 4:25 PM -- 4:40 PMPeak 15-Min: 4:25 PM -- 4:40 PM
0 0.4
0 0 0
0 1 0 0
0 0
0.8 0 0 0
0 0.2 0
0 0.2
0
0 0
0
0 0 0
0 0
0 0
0 0
0 0 0
N/A
N/A N/A
N/A
N/A
N/A N/A
N/A
5-Min Count5-Min CountPeriod Period Beginning AtBeginning At
Armada Dr/Costco AccessArmada Dr/Costco Access
(Northbound)(Northbound)
Armada Dr/Costco AccessArmada Dr/Costco Access
(Southbound)(Southbound)
Palomar Place ShoppingPalomar Place Shopping
Center AccessCenter Access
(Eastbound)(Eastbound)
Palomar Place ShoppingPalomar Place Shopping
Center AccessCenter Access
(Westbound)(Westbound)TotalTotal HourlyHourlyTotalsTotals
LeftLeft ThruThru RightRight UU LeftLeft ThruThru RightRight UU LeftLeft ThruThru RightRight UU LeftLeft ThruThru RightRight UU
4:00 PM 0 35 0 0 0 25 8 0 11 0 5 0 0 0 0 0 84
4:05 PM 0 43 0 0 0 30 10 0 19 0 4 0 0 0 0 0 106
4:10 PM 0 35 0 1 0 33 15 0 13 0 2 0 0 0 0 0 99
4:15 PM 0 45 0 0 0 20 15 0 12 0 5 0 0 0 0 0 97
4:20 PM 0 39 0 0 0 23 29 1 14 0 4 0 0 0 0 0 110
4:25 PM 0 32 0 0 0 21 25 0 21 0 1 0 0 0 0 0 1004:30 PM 0 45 0 0 0 25 21 0 20 0 4 0 0 0 0 0 115
4:35 PM 0 53 0 0 0 19 16 0 23 0 1 0 0 0 0 0 112
4:40 PM 0 37 0 0 0 20 14 0 20 0 6 0 0 0 0 0 974:45 PM 0 32 0 0 0 22 12 1 11 0 3 0 0 0 0 0 81
4:50 PM 0 32 0 0 0 25 18 0 10 0 3 0 0 0 0 0 88
4:55 PM 0 41 0 0 0 22 18 0 15 0 4 0 0 0 0 0 100 1189
5:00 PM 0 49 0 0 0 25 6 0 19 0 2 0 0 0 0 0 101 1206
5:05 PM 1 37 0 0 0 32 6 0 19 0 3 0 0 0 0 0 98 1198
5:10 PM 1 33 0 0 0 23 13 0 19 0 3 0 0 0 0 0 92 1191
5:15 PM 0 35 0 0 0 25 9 1 16 0 6 0 0 0 0 0 92 1186
5:20 PM 0 38 0 0 0 32 14 0 17 0 0 0 0 0 0 0 101 1177
5:25 PM 0 38 0 0 0 24 18 0 17 0 3 0 0 0 0 0 100 1177
5:30 PM 0 42 0 0 0 18 9 0 23 0 5 0 0 0 0 0 97 1159
5:35 PM 0 35 0 0 0 27 18 0 15 0 3 0 0 0 0 0 98 1145
5:40 PM 0 32 0 0 0 28 13 1 23 0 6 0 0 0 0 0 103 1151
5:45 PM 0 33 0 0 0 32 18 1 11 0 4 0 0 0 0 0 99 1169
5:50 PM 0 44 0 0 0 23 10 0 16 0 3 0 0 0 0 0 96 1177
5:55 PM 0 36 0 0 0 28 12 0 17 0 2 0 0 0 0 0 95 1172
Peak 15-MinPeak 15-MinFlowratesFlowrates
NorthboundNorthbound SouthboundSouthbound EastboundEastbound WestboundWestbound TotalTotalLeftLeftThruThruRightRightUULeftLeftThruThruRightRightUULeftLeftThruThruRightRightUULeftLeftThruThruRightRightUU
All Vehicles 0 520 0 0 0 260 248 0 256 0 24 0 0 0 0 0 1308
Heavy Trucks 0 4 0 0 0 0 0 0 0 0 0 0 4
Buses
Pedestrians 0 0 0 0 0
Bicycles 0 0 0 0 0 0 0 0 0 0 0 0 0
Scooters
Comments:
Report generated on 4/7/2022 4:30 PM SOURCE: Quality Counts, LLC (http://www.qualitycounts.net) 1-877-580-2212
Page 1 of 1Dec. 17, 2025 Item #1 121 of 174
Type of peak hour being reported: Intersection Peak Method for determining peak hour: Total Entering Volume
LOCATION: LOCATION: Armada Dr/Costco Access -- Palomar Place Shopping Center Access QC JOB #: QC JOB #: 15736704
CITY/STATE: CITY/STATE: Carlsbad, CA DATE: DATE: Sat, Mar 12 2022
509 755
195 309 5
195 223 0 0
0 0.960.96 0
278 55 0 0
3 527 0
367 530
Peak-Hour: 12:55 PM -- 1:55 PMPeak-Hour: 12:55 PM -- 1:55 PM
Peak 15-Min: 1:10 PM -- 1:25 PMPeak 15-Min: 1:10 PM -- 1:25 PM
0 0
0 0 0
0 0 0 0
0 0
0 0 0 0
0 0 0
0 0
0
4 0
0
0 0 0
0 0
0 0
0 0
0 0 0
N/A
N/A N/A
N/A
N/A
N/A N/A
N/A
5-Min Count5-Min CountPeriod Period Beginning AtBeginning At
Armada Dr/Costco AccessArmada Dr/Costco Access
(Northbound)(Northbound)
Armada Dr/Costco AccessArmada Dr/Costco Access
(Southbound)(Southbound)
Palomar Place ShoppingPalomar Place Shopping
Center AccessCenter Access
(Eastbound)(Eastbound)
Palomar Place ShoppingPalomar Place Shopping
Center AccessCenter Access
(Westbound)(Westbound)TotalTotal HourlyHourlyTotalsTotals
LeftLeft ThruThru RightRight UU LeftLeft ThruThru RightRight UU LeftLeft ThruThru RightRight UU LeftLeft ThruThru RightRight UU
11:00 AM 0 45 0 0 0 32 16 0 24 0 2 0 0 0 0 0 119
11:05 AM 0 27 0 0 0 16 11 0 24 0 2 0 0 0 0 0 80
11:10 AM 0 39 0 0 0 34 16 0 16 0 3 0 0 0 0 0 108
11:15 AM 0 34 0 0 0 31 19 0 13 0 8 0 0 0 0 0 105
11:20 AM 0 35 0 0 0 32 10 0 13 0 2 0 0 0 0 0 9211:25 AM 1 43 0 0 0 37 15 0 19 0 3 0 0 0 0 0 118
11:30 AM 0 40 0 0 0 29 20 0 20 0 2 0 0 0 0 0 111
11:35 AM 0 33 0 0 0 30 20 0 15 0 3 0 0 0 0 0 101
11:40 AM 0 46 0 0 0 32 19 0 16 0 5 0 0 0 0 0 118
11:45 AM 0 48 0 0 0 27 12 0 18 0 7 0 0 0 0 0 11211:50 AM 0 39 0 0 0 33 13 0 18 0 1 0 0 0 0 0 104
11:55 AM 0 32 0 0 0 31 22 2 12 0 3 0 0 0 0 0 102 1270
12:00 PM 0 52 0 0 0 27 13 0 21 0 5 0 0 0 0 0 118 1269
12:05 PM 0 45 0 0 0 16 5 0 17 0 5 0 0 0 0 0 88 1277
12:10 PM 0 35 0 0 0 28 18 0 16 0 3 0 0 0 0 0 100 1269
12:15 PM 0 43 0 0 0 35 23 0 14 0 1 0 0 0 0 0 116 1280
12:20 PM 0 51 0 0 0 26 13 1 23 0 9 0 0 0 0 0 123 1311
12:25 PM 0 48 0 0 0 28 22 0 17 0 2 0 0 0 0 0 117 1310
12:30 PM 0 35 0 0 0 28 12 0 22 0 1 0 0 0 0 0 98 1297
12:35 PM 0 46 0 0 0 26 15 1 17 0 3 0 0 0 0 0 108 1304
12:40 PM 0 32 0 0 0 29 9 0 17 0 4 0 0 0 0 0 91 1277
12:45 PM 0 39 0 0 0 37 15 0 19 0 5 0 0 0 0 0 115 1280
12:50 PM 0 35 0 0 0 32 17 0 15 0 3 0 0 0 0 0 102 1278
12:55 PM 0 41 0 0 0 31 13 1 14 0 3 0 0 0 0 0 103 1279
1:00 PM 0 42 0 0 0 23 23 0 20 0 2 0 0 0 0 0 110 1271
1:05 PM 0 39 0 2 0 23 17 1 10 0 3 0 0 0 0 0 95 1278
1:10 PM 0 36 0 1 0 39 16 0 23 0 5 0 0 0 0 0 120 1298
1:15 PM 0 51 0 0 0 21 19 1 13 0 4 0 0 0 0 0 109 1291
1:20 PM 0 52 0 0 0 21 24 0 14 0 4 0 0 0 0 0 115 1283
1:25 PM 0 41 0 0 0 30 11 1 22 0 4 0 0 0 0 0 109 1275
1:30 PM 0 45 0 0 0 24 14 0 25 0 2 0 0 0 0 0 110 1287
1:35 PM 0 51 0 0 0 24 15 0 17 0 7 0 0 0 0 0 114 1293
1:40 PM 0 43 0 0 0 21 12 0 26 0 5 0 0 0 0 0 107 1309
1:45 PM 0 43 0 0 0 32 14 0 15 0 13 0 0 0 0 0 117 1311
1:50 PM 0 43 0 0 0 20 17 1 24 0 3 0 0 0 0 0 108 1317
1:55 PM 0 46 0 0 0 18 10 0 21 0 3 0 0 0 0 0 98 1312
Page 1 of 2Dec. 17, 2025 Item #1 122 of 174
Peak 15-MinPeak 15-MinFlowratesFlowrates
NorthboundNorthbound SouthboundSouthbound EastboundEastbound WestboundWestbound TotalTotalLeftLeftThruThruRightRightUULeftLeftThruThruRightRightUULeftLeftThruThruRightRightUULeftLeftThruThruRightRightUU
All Vehicles 0 556 0 4 0 324 236 4 200 0 52 0 0 0 0 0 1376
Heavy Trucks 0 0 0 0 0 0 0 0 0 0 0 0 0
Buses
Pedestrians 0 0 0 0 0
Bicycles 0 0 0 0 0 0 0 0 0 0 0 0 0
Scooters
Comments:
Report generated on 4/7/2022 4:30 PM SOURCE: Quality Counts, LLC (http://www.qualitycounts.net) 1-877-580-2212
Page 2 of 2Dec. 17, 2025 Item #1 123 of 174
Dec. 17, 2025 Item #1 124 of 174
Site Code:
Location:Carlsbad Costco Gas Station
Date:
Time:7 AM - 9 AM
Time Queue Time Queue Time Queue Time Queue
7:00 AM 0 7:00 AM 0 7:00 AM 0 7:00 AM 0
7:01 AM 0 7:01 AM 0 7:01 AM 0 7:01 AM 0
7:02 AM 0 7:02 AM 0 7:02 AM 0 7:02 AM 0
7:03 AM 0 7:03 AM 0 7:03 AM 0 7:03 AM 0
7:04 AM 0 7:04 AM 0 7:04 AM 0 7:04 AM 0
7:05 AM 1 7:05 AM 0 7:05 AM 0 7:05 AM 0
7:06 AM 2 7:06 AM 0 7:06 AM 0 7:06 AM 0
7:07 AM 2 7:07 AM 0 7:07 AM 0 7:07 AM 0
7:08 AM 0 7:08 AM 0 7:08 AM 0 7:08 AM 0
7:09 AM 2 7:09 AM 0 7:09 AM 0 7:09 AM 0
7:10 AM 6 7:10 AM 0 7:10 AM 0 7:10 AM 0
7:11 AM 4 7:11 AM 0 7:11 AM 0 7:11 AM 0
7:12 AM 4 7:12 AM 0 7:12 AM 0 7:12 AM 0
7:13 AM 5 7:13 AM 0 7:13 AM 0 7:13 AM 0
7:14 AM 2 7:14 AM 0 7:14 AM 0 7:14 AM 0
7:15 AM 3 7:15 AM 0 7:15 AM 0 7:15 AM 0
7:16 AM 4 7:16 AM 0 7:16 AM 0 7:16 AM 0
7:17 AM 9 7:17 AM 0 7:17 AM 0 7:17 AM 0
7:18 AM 6 7:18 AM 0 7:18 AM 0 7:18 AM 0
7:19 AM 1 7:19 AM 0 7:19 AM 0 7:19 AM 0
7:20 AM 2 7:20 AM 0 7:20 AM 0 7:20 AM 0
7:21 AM 2 7:21 AM 0 7:21 AM 0 7:21 AM 0
7:22 AM 0 7:22 AM 0 7:22 AM 0 7:22 AM 0
7:23 AM 2 7:23 AM 0 7:23 AM 0 7:23 AM 0
7:24 AM 3 7:24 AM 0 7:24 AM 0 7:24 AM 0
7:25 AM 1 7:25 AM 0 7:25 AM 0 7:25 AM 0
7:26 AM 0 7:26 AM 0 7:26 AM 0 7:26 AM 0
7:27 AM 0 7:27 AM 0 7:27 AM 0 7:27 AM 0
7:28 AM 1 7:28 AM 0 7:28 AM 0 7:28 AM 0
7:29 AM 2 7:29 AM 0 7:29 AM 0 7:29 AM 0
7:30 AM 0 7:30 AM 0 7:30 AM 0 7:30 AM 0
7:31 AM 0 7:31 AM 0 7:31 AM 0 7:31 AM 0
7:32 AM 0 7:32 AM 0 7:32 AM 0 7:32 AM 0
7:33 AM 0 7:33 AM 0 7:33 AM 0 7:33 AM 0
7:34 AM 0 7:34 AM 0 7:34 AM 0 7:34 AM 0
7:35 AM 0 7:35 AM 0 7:35 AM 0 7:35 AM 0
7:36 AM 0 7:36 AM 0 7:36 AM 0 7:36 AM 0
7:37 AM 0 7:37 AM 0 7:37 AM 0 7:37 AM 0
7:38 AM 0 7:38 AM 0 7:38 AM 0 7:38 AM 0
7:39 AM 0 7:39 AM 0 7:39 AM 0 7:39 AM 0
7:40 AM 0 7:40 AM 0 7:40 AM 0 7:40 AM 0
7:41 AM 0 7:41 AM 0 7:41 AM 0 7:41 AM 0
7:42 AM 0 7:42 AM 0 7:42 AM 0 7:42 AM 0
7:43 AM 0 7:43 AM 0 7:43 AM 0 7:43 AM 0
7:44 AM 0 7:44 AM 0 7:44 AM 0 7:44 AM 0
7:45 AM 1 7:45 AM 0 7:45 AM 0 7:45 AM 0
7:46 AM 1 7:46 AM 0 7:46 AM 0 7:46 AM 0
7:47 AM 0 7:47 AM 0 7:47 AM 0 7:47 AM 0
7:48 AM 1 7:48 AM 0 7:48 AM 0 7:48 AM 0
7:49 AM 1 7:49 AM 0 7:49 AM 0 7:49 AM 0
7:50 AM 0 7:50 AM 0 7:50 AM 0 7:50 AM 0
7:51 AM 0 7:51 AM 0 7:51 AM 0 7:51 AM 0
7:52 AM 0 7:52 AM 0 7:52 AM 0 7:52 AM 0
7:53 AM 0 7:53 AM 0 7:53 AM 0 7:53 AM 0
7:54 AM 0 7:54 AM 0 7:54 AM 0 7:54 AM 0
7:55 AM 0 7:55 AM 0 7:55 AM 0 7:55 AM 0
7:56 AM 0 7:56 AM 0 7:56 AM 0 7:56 AM 0
Zone CZone A Zone D
3/15/2022
15736709
Zone B
Dec. 17, 2025 Item #1 125 of 174
7:57 AM 0 7:57 AM 0 7:57 AM 0 7:57 AM 0
7:58 AM 0 7:58 AM 0 7:58 AM 0 7:58 AM 0
7:59 AM 0 7:59 AM 0 7:59 AM 0 7:59 AM 0
8:00 AM 0 8:00 AM 0 8:00 AM 0 8:00 AM 0
8:01 AM 2 8:01 AM 0 8:01 AM 0 8:01 AM 0
8:02 AM 2 8:02 AM 0 8:02 AM 0 8:02 AM 0
8:03 AM 1 8:03 AM 0 8:03 AM 0 8:03 AM 0
8:04 AM 6 8:04 AM 0 8:04 AM 0 8:04 AM 0
8:05 AM 3 8:05 AM 0 8:05 AM 0 8:05 AM 0
8:06 AM 2 8:06 AM 0 8:06 AM 0 8:06 AM 0
8:07 AM 4 8:07 AM 0 8:07 AM 0 8:07 AM 0
8:08 AM 7 8:08 AM 0 8:08 AM 0 8:08 AM 0
8:09 AM 5 8:09 AM 0 8:09 AM 0 8:09 AM 0
8:10 AM 7 8:10 AM 0 8:10 AM 0 8:10 AM 0
8:11 AM 6 8:11 AM 0 8:11 AM 0 8:11 AM 0
8:12 AM 14 8:12 AM 0 8:12 AM 0 8:12 AM 0
8:13 AM 13 8:13 AM 0 8:13 AM 0 8:13 AM 0
8:14 AM 11 8:14 AM 0 8:14 AM 0 8:14 AM 0
8:15 AM 8 8:15 AM 0 8:15 AM 0 8:15 AM 0
8:16 AM 6 8:16 AM 0 8:16 AM 0 8:16 AM 0
8:17 AM 4 8:17 AM 0 8:17 AM 0 8:17 AM 0
8:18 AM 7 8:18 AM 0 8:18 AM 0 8:18 AM 0
8:19 AM 10 8:19 AM 0 8:19 AM 0 8:19 AM 0
8:20 AM 5 8:20 AM 0 8:20 AM 0 8:20 AM 0
8:21 AM 3 8:21 AM 0 8:21 AM 0 8:21 AM 0
8:22 AM 5 8:22 AM 0 8:22 AM 0 8:22 AM 0
8:23 AM 3 8:23 AM 0 8:23 AM 0 8:23 AM 0
8:24 AM 1 8:24 AM 0 8:24 AM 0 8:24 AM 0
8:25 AM 0 8:25 AM 0 8:25 AM 0 8:25 AM 0
8:26 AM 4 8:26 AM 0 8:26 AM 0 8:26 AM 0
8:27 AM 1 8:27 AM 0 8:27 AM 0 8:27 AM 0
8:28 AM 4 8:28 AM 0 8:28 AM 0 8:28 AM 0
8:29 AM 1 8:29 AM 0 8:29 AM 0 8:29 AM 0
8:30 AM 4 8:30 AM 0 8:30 AM 0 8:30 AM 0
8:31 AM 10 8:31 AM 0 8:31 AM 0 8:31 AM 0
8:32 AM 12 8:32 AM 0 8:32 AM 0 8:32 AM 0
8:33 AM 8 8:33 AM 0 8:33 AM 0 8:33 AM 0
8:34 AM 7 8:34 AM 0 8:34 AM 0 8:34 AM 0
8:35 AM 15 8:35 AM 0 8:35 AM 0 8:35 AM 0
8:36 AM 13 8:36 AM 0 8:36 AM 0 8:36 AM 0
8:37 AM 20 8:37 AM 0 8:37 AM 0 8:37 AM 0
8:38 AM 19 8:38 AM 0 8:38 AM 0 8:38 AM 0
8:39 AM 18 8:39 AM 0 8:39 AM 0 8:39 AM 0
8:40 AM 22 8:40 AM 0 8:40 AM 0 8:40 AM 0
8:41 AM 18 8:41 AM 0 8:41 AM 0 8:41 AM 0
8:42 AM 23 8:42 AM 0 8:42 AM 0 8:42 AM 0
8:43 AM 26 8:43 AM 0 8:43 AM 0 8:43 AM 0
8:44 AM 25 8:44 AM 0 8:44 AM 0 8:44 AM 0
8:45 AM 23 8:45 AM 0 8:45 AM 0 8:45 AM 0
8:46 AM 24 8:46 AM 0 8:46 AM 0 8:46 AM 0
8:47 AM 21 8:47 AM 0 8:47 AM 0 8:47 AM 0
8:48 AM 20 8:48 AM 0 8:48 AM 0 8:48 AM 0
8:49 AM 22 8:49 AM 0 8:49 AM 0 8:49 AM 0
8:50 AM 17 8:50 AM 0 8:50 AM 0 8:50 AM 0
8:51 AM 17 8:51 AM 0 8:51 AM 0 8:51 AM 0
8:52 AM 14 8:52 AM 0 8:52 AM 0 8:52 AM 0
8:53 AM 18 8:53 AM 0 8:53 AM 0 8:53 AM 0
8:54 AM 16 8:54 AM 0 8:54 AM 0 8:54 AM 0
8:55 AM 16 8:55 AM 0 8:55 AM 0 8:55 AM 0
8:56 AM 14 8:56 AM 0 8:56 AM 0 8:56 AM 0
8:57 AM 13 8:57 AM 0 8:57 AM 0 8:57 AM 0
8:58 AM 13 8:58 AM 0 8:58 AM 0 8:58 AM 0
8:59 AM 16 8:59 AM 0 8:59 AM 0 8:59 AM 0
Dec. 17, 2025 Item #1 126 of 174
Site Code:
Location:Carlsbad Costco Gas Station
Date:
Time:4 PM - 6 PM
Time Queue Time Queue Time Queue Time Queue
4:00 PM 33 4:00 PM 4 4:00 PM 5 4:00 PM 0
4:01 PM 37 4:01 PM 3 4:01 PM 6 4:01 PM 0
4:02 PM 36 4:02 PM 4 4:02 PM 1 4:02 PM 0
4:03 PM 39 4:03 PM 3 4:03 PM 4 4:03 PM 0
4:04 PM 37 4:04 PM 4 4:04 PM 4 4:04 PM 0
4:05 PM 34 4:05 PM 5 4:05 PM 8 4:05 PM 0
4:06 PM 36 4:06 PM 1 4:06 PM 4 4:06 PM 0
4:07 PM 32 4:07 PM 0 4:07 PM 0 4:07 PM 0
4:08 PM 35 4:08 PM 1 4:08 PM 2 4:08 PM 0
4:09 PM 40 4:09 PM 0 4:09 PM 0 4:09 PM 0
4:10 PM 35 4:10 PM 2 4:10 PM 0 4:10 PM 0
4:11 PM 31 4:11 PM 3 4:11 PM 1 4:11 PM 0
4:12 PM 34 4:12 PM 1 4:12 PM 0 4:12 PM 0
4:13 PM 35 4:13 PM 1 4:13 PM 0 4:13 PM 0
4:14 PM 36 4:14 PM 0 4:14 PM 0 4:14 PM 0
4:15 PM 39 4:15 PM 4 4:15 PM 4 4:15 PM 0
4:16 PM 36 4:16 PM 5 4:16 PM 5 4:16 PM 0
4:17 PM 35 4:17 PM 3 4:17 PM 4 4:17 PM 0
4:18 PM 39 4:18 PM 7 4:18 PM 7 4:18 PM 0
4:19 PM 38 4:19 PM 4 4:19 PM 7 4:19 PM 0
4:20 PM 39 4:20 PM 3 4:20 PM 7 4:20 PM 0
4:21 PM 35 4:21 PM 3 4:21 PM 8 4:21 PM 0
4:22 PM 35 4:22 PM 4 4:22 PM 9 4:22 PM 0
4:23 PM 38 4:23 PM 0 4:23 PM 8 4:23 PM 0
4:24 PM 36 4:24 PM 3 4:24 PM 8 4:24 PM 0
4:25 PM 37 4:25 PM 5 4:25 PM 1 4:25 PM 0
4:26 PM 40 4:26 PM 3 4:26 PM 2 4:26 PM 0
4:27 PM 38 4:27 PM 4 4:27 PM 2 4:27 PM 0
4:28 PM 31 4:28 PM 3 4:28 PM 9 4:28 PM 0
4:29 PM 36 4:29 PM 4 4:29 PM 6 4:29 PM 0
4:30 PM 36 4:30 PM 3 4:30 PM 4 4:30 PM 0
4:31 PM 39 4:31 PM 3 4:31 PM 8 4:31 PM 0
4:32 PM 40 4:32 PM 2 4:32 PM 1 4:32 PM 0
4:33 PM 41 4:33 PM 1 4:33 PM 0 4:33 PM 0
4:34 PM 36 4:34 PM 4 4:34 PM 1 4:34 PM 0
4:35 PM 40 4:35 PM 2 4:35 PM 0 4:35 PM 0
4:36 PM 34 4:36 PM 2 4:36 PM 2 4:36 PM 0
4:37 PM 36 4:37 PM 3 4:37 PM 5 4:37 PM 0
4:38 PM 33 4:38 PM 3 4:38 PM 5 4:38 PM 0
4:39 PM 33 4:39 PM 4 4:39 PM 0 4:39 PM 0
4:40 PM 31 4:40 PM 0 4:40 PM 0 4:40 PM 0
4:41 PM 32 4:41 PM 0 4:41 PM 0 4:41 PM 0
4:42 PM 38 4:42 PM 0 4:42 PM 0 4:42 PM 0
4:43 PM 35 4:43 PM 2 4:43 PM 0 4:43 PM 0
4:44 PM 33 4:44 PM 2 4:44 PM 0 4:44 PM 0
4:45 PM 32 4:45 PM 0 4:45 PM 0 4:45 PM 0
4:46 PM 35 4:46 PM 0 4:46 PM 0 4:46 PM 0
4:47 PM 37 4:47 PM 1 4:47 PM 0 4:47 PM 0
4:48 PM 36 4:48 PM 0 4:48 PM 0 4:48 PM 0
4:49 PM 31 4:49 PM 1 4:49 PM 0 4:49 PM 0
4:50 PM 30 4:50 PM 0 4:50 PM 0 4:50 PM 0
4:51 PM 31 4:51 PM 1 4:51 PM 0 4:51 PM 0
4:52 PM 37 4:52 PM 0 4:52 PM 0 4:52 PM 0
4:53 PM 28 4:53 PM 0 4:53 PM 0 4:53 PM 0
4:54 PM 31 4:54 PM 0 4:54 PM 0 4:54 PM 0
4:55 PM 31 4:55 PM 0 4:55 PM 0 4:55 PM 0
4:56 PM 34 4:56 PM 0 4:56 PM 0 4:56 PM 0
Zone CZone A Zone D
3/15/2022
15736710
Zone B
Dec. 17, 2025 Item #1 127 of 174
4:57 PM 30 4:57 PM 0 4:57 PM 0 4:57 PM 0
4:58 PM 29 4:58 PM 0 4:58 PM 0 4:58 PM 0
4:59 PM 29 4:59 PM 0 4:59 PM 0 4:59 PM 0
5:00 PM 29 5:00 PM 0 5:00 PM 0 5:00 PM 0
5:01 PM 29 5:01 PM 0 5:01 PM 0 5:01 PM 0
5:02 PM 28 5:02 PM 0 5:02 PM 0 5:02 PM 0
5:03 PM 31 5:03 PM 0 5:03 PM 0 5:03 PM 0
5:04 PM 31 5:04 PM 0 5:04 PM 0 5:04 PM 0
5:05 PM 28 5:05 PM 0 5:05 PM 0 5:05 PM 0
5:06 PM 32 5:06 PM 0 5:06 PM 0 5:06 PM 0
5:07 PM 30 5:07 PM 0 5:07 PM 0 5:07 PM 0
5:08 PM 30 5:08 PM 1 5:08 PM 0 5:08 PM 0
5:09 PM 28 5:09 PM 0 5:09 PM 0 5:09 PM 0
5:10 PM 31 5:10 PM 0 5:10 PM 0 5:10 PM 0
5:11 PM 31 5:11 PM 0 5:11 PM 0 5:11 PM 0
5:12 PM 32 5:12 PM 0 5:12 PM 0 5:12 PM 0
5:13 PM 30 5:13 PM 0 5:13 PM 0 5:13 PM 0
5:14 PM 27 5:14 PM 0 5:14 PM 0 5:14 PM 0
5:15 PM 28 5:15 PM 0 5:15 PM 0 5:15 PM 0
5:16 PM 33 5:16 PM 0 5:16 PM 0 5:16 PM 0
5:17 PM 37 5:17 PM 2 5:17 PM 0 5:17 PM 0
5:18 PM 39 5:18 PM 4 5:18 PM 1 5:18 PM 0
5:19 PM 37 5:19 PM 0 5:19 PM 0 5:19 PM 0
5:20 PM 35 5:20 PM 0 5:20 PM 0 5:20 PM 0
5:21 PM 37 5:21 PM 3 5:21 PM 1 5:21 PM 0
5:22 PM 39 5:22 PM 0 5:22 PM 0 5:22 PM 0
5:23 PM 37 5:23 PM 3 5:23 PM 7 5:23 PM 0
5:24 PM 34 5:24 PM 0 5:24 PM 0 5:24 PM 0
5:25 PM 33 5:25 PM 0 5:25 PM 0 5:25 PM 0
5:26 PM 35 5:26 PM 0 5:26 PM 0 5:26 PM 0
5:27 PM 37 5:27 PM 0 5:27 PM 0 5:27 PM 0
5:28 PM 30 5:28 PM 0 5:28 PM 0 5:28 PM 0
5:29 PM 36 5:29 PM 0 5:29 PM 0 5:29 PM 0
5:30 PM 31 5:30 PM 0 5:30 PM 0 5:30 PM 0
5:31 PM 32 5:31 PM 0 5:31 PM 0 5:31 PM 0
5:32 PM 32 5:32 PM 0 5:32 PM 0 5:32 PM 0
5:33 PM 27 5:33 PM 0 5:33 PM 0 5:33 PM 0
5:34 PM 31 5:34 PM 0 5:34 PM 0 5:34 PM 0
5:35 PM 30 5:35 PM 0 5:35 PM 0 5:35 PM 0
5:36 PM 30 5:36 PM 0 5:36 PM 0 5:36 PM 0
5:37 PM 32 5:37 PM 0 5:37 PM 0 5:37 PM 0
5:38 PM 31 5:38 PM 0 5:38 PM 0 5:38 PM 0
5:39 PM 32 5:39 PM 0 5:39 PM 0 5:39 PM 0
5:40 PM 32 5:40 PM 0 5:40 PM 0 5:40 PM 0
5:41 PM 35 5:41 PM 0 5:41 PM 0 5:41 PM 0
5:42 PM 36 5:42 PM 0 5:42 PM 0 5:42 PM 0
5:43 PM 34 5:43 PM 0 5:43 PM 0 5:43 PM 0
5:44 PM 34 5:44 PM 0 5:44 PM 0 5:44 PM 0
5:45 PM 36 5:45 PM 2 5:45 PM 0 5:45 PM 0
5:46 PM 31 5:46 PM 3 5:46 PM 0 5:46 PM 0
5:47 PM 34 5:47 PM 4 5:47 PM 1 5:47 PM 0
5:48 PM 40 5:48 PM 0 5:48 PM 0 5:48 PM 0
5:49 PM 36 5:49 PM 0 5:49 PM 0 5:49 PM 0
5:50 PM 38 5:50 PM 0 5:50 PM 0 5:50 PM 0
5:51 PM 41 5:51 PM 2 5:51 PM 0 5:51 PM 0
5:52 PM 35 5:52 PM 0 5:52 PM 0 5:52 PM 0
5:53 PM 35 5:53 PM 0 5:53 PM 0 5:53 PM 0
5:54 PM 35 5:54 PM 0 5:54 PM 0 5:54 PM 0
5:55 PM 36 5:55 PM 0 5:55 PM 0 5:55 PM 0
5:56 PM 38 5:56 PM 0 5:56 PM 0 5:56 PM 0
5:57 PM 36 5:57 PM 0 5:57 PM 0 5:57 PM 0
5:58 PM 34 5:58 PM 4 5:58 PM 4 5:58 PM 0
5:59 PM 35 5:59 PM 0 5:59 PM 0 5:59 PM 0
Dec. 17, 2025 Item #1 128 of 174
Site Code:
Location:Carlsbad Costco Gas Station
Date:
Time:11 AM - 2 PM
Time Queue Time Queue Time Queue Time Queue
11:00 AM 18 11:00 AM 0 11:00 AM 0 11:00 AM 12
11:01 AM 15 11:01 AM 0 11:01 AM 0 11:01 AM 13
11:02 AM 22 11:02 AM 0 11:02 AM 0 11:02 AM 2
11:03 AM 17 11:03 AM 0 11:03 AM 0 11:03 AM 10
11:04 AM 17 11:04 AM 0 11:04 AM 0 11:04 AM 10
11:05 AM 13 11:05 AM 0 11:05 AM 0 11:05 AM 10
11:06 AM 16 11:06 AM 0 11:06 AM 0 11:06 AM 5
11:07 AM 16 11:07 AM 0 11:07 AM 0 11:07 AM 10
11:08 AM 13 11:08 AM 0 11:08 AM 0 11:08 AM 12
11:09 AM 14 11:09 AM 0 11:09 AM 0 11:09 AM 10
11:10 AM 10 11:10 AM 0 11:10 AM 0 11:10 AM 7
11:11 AM 9 11:11 AM 0 11:11 AM 0 11:11 AM 4
11:12 AM 13 11:12 AM 0 11:12 AM 0 11:12 AM 4
11:13 AM 9 11:13 AM 0 11:13 AM 0 11:13 AM 3
11:14 AM 12 11:14 AM 0 11:14 AM 0 11:14 AM 2
11:15 AM 16 11:15 AM 0 11:15 AM 0 11:15 AM 4
11:16 AM 12 11:16 AM 0 11:16 AM 0 11:16 AM 3
11:17 AM 10 11:17 AM 0 11:17 AM 0 11:17 AM 1
11:18 AM 15 11:18 AM 0 11:18 AM 0 11:18 AM 2
11:19 AM 17 11:19 AM 0 11:19 AM 0 11:19 AM 3
11:20 AM 22 11:20 AM 0 11:20 AM 0 11:20 AM 5
11:21 AM 18 11:21 AM 0 11:21 AM 0 11:21 AM 5
11:22 AM 17 11:22 AM 0 11:22 AM 0 11:22 AM 1
11:23 AM 16 11:23 AM 0 11:23 AM 0 11:23 AM 1
11:24 AM 20 11:24 AM 0 11:24 AM 0 11:24 AM 4
11:25 AM 16 11:25 AM 0 11:25 AM 0 11:25 AM 2
11:26 AM 12 11:26 AM 0 11:26 AM 0 11:26 AM 3
11:27 AM 15 11:27 AM 0 11:27 AM 0 11:27 AM 4
11:28 AM 20 11:28 AM 0 11:28 AM 0 11:28 AM 4
11:29 AM 24 11:29 AM 0 11:29 AM 0 11:29 AM 3
11:30 AM 22 11:30 AM 0 11:30 AM 0 11:30 AM 3
11:31 AM 22 11:31 AM 0 11:31 AM 0 11:31 AM 4
11:32 AM 27 11:32 AM 0 11:32 AM 0 11:32 AM 5
11:33 AM 24 11:33 AM 0 11:33 AM 0 11:33 AM 2
11:34 AM 28 11:34 AM 0 11:34 AM 0 11:34 AM 6
11:35 AM 25 11:35 AM 0 11:35 AM 0 11:35 AM 8
11:36 AM 17 11:36 AM 0 11:36 AM 0 11:36 AM 6
11:37 AM 19 11:37 AM 0 11:37 AM 0 11:37 AM 5
11:38 AM 22 11:38 AM 0 11:38 AM 0 11:38 AM 8
11:39 AM 27 11:39 AM 1 11:39 AM 0 11:39 AM 8
11:40 AM 24 11:40 AM 0 11:40 AM 0 11:40 AM 7
11:41 AM 21 11:41 AM 0 11:41 AM 0 11:41 AM 6
11:42 AM 18 11:42 AM 0 11:42 AM 0 11:42 AM 7
11:43 AM 18 11:43 AM 0 11:43 AM 0 11:43 AM 3
11:44 AM 20 11:44 AM 0 11:44 AM 0 11:44 AM 5
11:45 AM 23 11:45 AM 0 11:45 AM 0 11:45 AM 3
11:46 AM 29 11:46 AM 0 11:46 AM 0 11:46 AM 0
11:47 AM 27 11:47 AM 0 11:47 AM 0 11:47 AM 0
11:48 AM 26 11:48 AM 0 11:48 AM 0 11:48 AM 0
11:49 AM 27 11:49 AM 0 11:49 AM 0 11:49 AM 0
11:50 AM 29 11:50 AM 0 11:50 AM 0 11:50 AM 0
11:51 AM 28 11:51 AM 0 11:51 AM 0 11:51 AM 0
11:52 AM 31 11:52 AM 0 11:52 AM 0 11:52 AM 0
11:53 AM 32 11:53 AM 0 11:53 AM 0 11:53 AM 0
11:54 AM 34 11:54 AM 0 11:54 AM 0 11:54 AM 0
11:55 AM 33 11:55 AM 0 11:55 AM 0 11:55 AM 0
11:56 AM 25 11:56 AM 0 11:56 AM 0 11:56 AM 0
Zone CZone A Zone D
3/12/2022
15736708
Zone B
Dec. 17, 2025 Item #1 129 of 174
11:57 AM 26 11:57 AM 0 11:57 AM 0 11:57 AM 0
11:58 AM 30 11:58 AM 0 11:58 AM 0 11:58 AM 0
11:59 AM 28 11:59 AM 0 11:59 AM 0 11:59 AM 0
12:00 PM 28 12:00 PM 0 12:00 PM 0 12:00 PM 0
12:01 PM 25 12:01 PM 0 12:01 PM 0 12:01 PM 0
12:02 PM 25 12:02 PM 0 12:02 PM 0 12:02 PM 0
12:03 PM 26 12:03 PM 0 12:03 PM 0 12:03 PM 0
12:04 PM 28 12:04 PM 0 12:04 PM 0 12:04 PM 0
12:05 PM 31 12:05 PM 0 12:05 PM 0 12:05 PM 0
12:06 PM 33 12:06 PM 0 12:06 PM 0 12:06 PM 0
12:07 PM 31 12:07 PM 0 12:07 PM 0 12:07 PM 0
12:08 PM 25 12:08 PM 0 12:08 PM 0 12:08 PM 0
12:09 PM 26 12:09 PM 0 12:09 PM 0 12:09 PM 0
12:10 PM 24 12:10 PM 0 12:10 PM 0 12:10 PM 0
12:11 PM 23 12:11 PM 0 12:11 PM 0 12:11 PM 0
12:12 PM 19 12:12 PM 0 12:12 PM 0 12:12 PM 0
12:13 PM 20 12:13 PM 0 12:13 PM 0 12:13 PM 0
12:14 PM 25 12:14 PM 0 12:14 PM 0 12:14 PM 0
12:15 PM 24 12:15 PM 0 12:15 PM 0 12:15 PM 0
12:16 PM 18 12:16 PM 0 12:16 PM 0 12:16 PM 0
12:17 PM 20 12:17 PM 0 12:17 PM 0 12:17 PM 0
12:18 PM 22 12:18 PM 0 12:18 PM 0 12:18 PM 0
12:19 PM 21 12:19 PM 0 12:19 PM 0 12:19 PM 0
12:20 PM 26 12:20 PM 0 12:20 PM 0 12:20 PM 0
12:21 PM 26 12:21 PM 0 12:21 PM 0 12:21 PM 0
12:22 PM 23 12:22 PM 0 12:22 PM 0 12:22 PM 0
12:23 PM 20 12:23 PM 0 12:23 PM 0 12:23 PM 0
12:24 PM 24 12:24 PM 0 12:24 PM 0 12:24 PM 0
12:25 PM 27 12:25 PM 0 12:25 PM 0 12:25 PM 0
12:26 PM 28 12:26 PM 0 12:26 PM 0 12:26 PM 0
12:27 PM 28 12:27 PM 0 12:27 PM 0 12:27 PM 0
12:28 PM 28 12:28 PM 0 12:28 PM 0 12:28 PM 0
12:29 PM 28 12:29 PM 0 12:29 PM 0 12:29 PM 0
12:30 PM 20 12:30 PM 0 12:30 PM 0 12:30 PM 0
12:31 PM 22 12:31 PM 0 12:31 PM 0 12:31 PM 0
12:32 PM 18 12:32 PM 0 12:32 PM 0 12:32 PM 0
12:33 PM 16 12:33 PM 0 12:33 PM 0 12:33 PM 0
12:34 PM 25 12:34 PM 0 12:34 PM 0 12:34 PM 0
12:35 PM 24 12:35 PM 0 12:35 PM 0 12:35 PM 0
12:36 PM 24 12:36 PM 0 12:36 PM 0 12:36 PM 0
12:37 PM 19 12:37 PM 0 12:37 PM 0 12:37 PM 0
12:38 PM 22 12:38 PM 0 12:38 PM 0 12:38 PM 0
12:39 PM 22 12:39 PM 0 12:39 PM 0 12:39 PM 0
12:40 PM 22 12:40 PM 0 12:40 PM 0 12:40 PM 0
12:41 PM 22 12:41 PM 0 12:41 PM 0 12:41 PM 0
12:42 PM 18 12:42 PM 0 12:42 PM 0 12:42 PM 0
12:43 PM 21 12:43 PM 0 12:43 PM 0 12:43 PM 0
12:44 PM 29 12:44 PM 0 12:44 PM 0 12:44 PM 0
12:45 PM 32 12:45 PM 0 12:45 PM 0 12:45 PM 0
12:46 PM 26 12:46 PM 0 12:46 PM 0 12:46 PM 0
12:47 PM 29 12:47 PM 0 12:47 PM 0 12:47 PM 0
12:48 PM 31 12:48 PM 0 12:48 PM 0 12:48 PM 0
12:49 PM 34 12:49 PM 0 12:49 PM 0 12:49 PM 0
12:50 PM 35 12:50 PM 0 12:50 PM 0 12:50 PM 0
12:51 PM 36 12:51 PM 0 12:51 PM 0 12:51 PM 0
12:52 PM 27 12:52 PM 0 12:52 PM 0 12:52 PM 0
12:53 PM 29 12:53 PM 0 12:53 PM 0 12:53 PM 0
12:54 PM 33 12:54 PM 0 12:54 PM 0 12:54 PM 0
12:55 PM 30 12:55 PM 0 12:55 PM 0 12:55 PM 0
12:56 PM 30 12:56 PM 0 12:56 PM 0 12:56 PM 0
12:57 PM 33 12:57 PM 0 12:57 PM 0 12:57 PM 0
12:58 PM 36 12:58 PM 0 12:58 PM 0 12:58 PM 0
12:59 PM 32 12:59 PM 0 12:59 PM 0 12:59 PM 0
1:00 PM 36 1:00 PM 0 1:00 PM 0 1:00 PM 0
1:01 PM 37 1:01 PM 0 1:01 PM 0 1:01 PM 0
Dec. 17, 2025 Item #1 130 of 174
1:02 PM 39 1:02 PM 0 1:02 PM 0 1:02 PM 0
1:03 PM 36 1:03 PM 0 1:03 PM 0 1:03 PM 0
1:04 PM 35 1:04 PM 0 1:04 PM 0 1:04 PM 0
1:05 PM 30 1:05 PM 0 1:05 PM 0 1:05 PM 0
1:06 PM 32 1:06 PM 0 1:06 PM 0 1:06 PM 0
1:07 PM 30 1:07 PM 3 1:07 PM 0 1:07 PM 0
1:08 PM 34 1:08 PM 2 1:08 PM 2 1:08 PM 0
1:09 PM 32 1:09 PM 2 1:09 PM 0 1:09 PM 0
1:10 PM 27 1:10 PM 0 1:10 PM 0 1:10 PM 0
1:11 PM 30 1:11 PM 0 1:11 PM 0 1:11 PM 0
1:12 PM 35 1:12 PM 0 1:12 PM 0 1:12 PM 0
1:13 PM 33 1:13 PM 0 1:13 PM 0 1:13 PM 1
1:14 PM 33 1:14 PM 0 1:14 PM 0 1:14 PM 0
1:15 PM 38 1:15 PM 0 1:15 PM 0 1:15 PM 0
1:16 PM 42 1:16 PM 0 1:16 PM 0 1:16 PM 0
1:17 PM 36 1:17 PM 4 1:17 PM 2 1:17 PM 0
1:18 PM 31 1:18 PM 0 1:18 PM 0 1:18 PM 0
1:19 PM 36 1:19 PM 0 1:19 PM 0 1:19 PM 0
1:20 PM 40 1:20 PM 3 1:20 PM 0 1:20 PM 0
1:21 PM 36 1:21 PM 0 1:21 PM 0 1:21 PM 0
1:22 PM 33 1:22 PM 0 1:22 PM 0 1:22 PM 0
1:23 PM 35 1:23 PM 1 1:23 PM 0 1:23 PM 0
1:24 PM 32 1:24 PM 0 1:24 PM 0 1:24 PM 0
1:25 PM 34 1:25 PM 0 1:25 PM 0 1:25 PM 0
1:26 PM 40 1:26 PM 0 1:26 PM 0 1:26 PM 0
1:27 PM 37 1:27 PM 0 1:27 PM 0 1:27 PM 0
1:28 PM 38 1:28 PM 0 1:28 PM 0 1:28 PM 0
1:29 PM 38 1:29 PM 0 1:29 PM 0 1:29 PM 0
1:30 PM 37 1:30 PM 0 1:30 PM 0 1:30 PM 0
1:31 PM 37 1:31 PM 0 1:31 PM 0 1:31 PM 0
1:32 PM 35 1:32 PM 0 1:32 PM 0 1:32 PM 0
1:33 PM 34 1:33 PM 0 1:33 PM 0 1:33 PM 0
1:34 PM 34 1:34 PM 0 1:34 PM 0 1:34 PM 0
1:35 PM 32 1:35 PM 0 1:35 PM 0 1:35 PM 0
1:36 PM 28 1:36 PM 0 1:36 PM 0 1:36 PM 0
1:37 PM 31 1:37 PM 0 1:37 PM 0 1:37 PM 0
1:38 PM 25 1:38 PM 0 1:38 PM 0 1:38 PM 0
1:39 PM 29 1:39 PM 0 1:39 PM 0 1:39 PM 0
1:40 PM 24 1:40 PM 0 1:40 PM 0 1:40 PM 0
1:41 PM 26 1:41 PM 0 1:41 PM 0 1:41 PM 0
1:42 PM 27 1:42 PM 0 1:42 PM 0 1:42 PM 0
1:43 PM 29 1:43 PM 0 1:43 PM 0 1:43 PM 0
1:44 PM 23 1:44 PM 0 1:44 PM 0 1:44 PM 0
1:45 PM 26 1:45 PM 0 1:45 PM 0 1:45 PM 0
1:46 PM 29 1:46 PM 0 1:46 PM 0 1:46 PM 0
1:47 PM 30 1:47 PM 0 1:47 PM 0 1:47 PM 0
1:48 PM 31 1:48 PM 0 1:48 PM 0 1:48 PM 0
1:49 PM 37 1:49 PM 0 1:49 PM 0 1:49 PM 0
1:50 PM 41 1:50 PM 1 1:50 PM 0 1:50 PM 0
1:51 PM 36 1:51 PM 3 1:51 PM 0 1:51 PM 0
1:52 PM 31 1:52 PM 0 1:52 PM 0 1:52 PM 0
1:53 PM 35 1:53 PM 0 1:53 PM 0 1:53 PM 0
1:54 PM 30 1:54 PM 0 1:54 PM 0 1:54 PM 0
1:55 PM 32 1:55 PM 0 1:55 PM 0 1:55 PM 0
1:56 PM 28 1:56 PM 0 1:56 PM 0 1:56 PM 0
1:57 PM 25 1:57 PM 0 1:57 PM 0 1:57 PM 0
1:58 PM 27 1:58 PM 0 1:58 PM 0 1:58 PM 0
1:59 PM 25 1:59 PM 0 1:59 PM 0 1:59 PM 0
Dec. 17, 2025 Item #1 131 of 174
Appendix C:
Existing Traffic
Operations Worksheets
Dec. 17, 2025 Item #1 132 of 174
Queues Carlsbad Costco Gas Expansion
1: Costco Access/Armada Drive & Palomar Airport Road Existing 2022 Weekday AM Peak Hour
Kittelson & Associates Synchro 11 Report
09/21/2022 Page 1
Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Group Flow (vph) 126 1729 217 152 915 116 133 118 112 52 59 60
v/c Ratio 0.54 0.58 0.18 0.78 0.29 0.10 0.56 0.54 0.44 0.33 0.41 0.29
Control Delay 71.3 19.3 1.2 86.0 12.3 1.3 71.6 38.9 15.3 69.5 70.2 5.2
Queue Delay 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Delay 71.3 19.3 1.2 86.0 12.3 1.3 71.6 38.9 15.3 69.5 70.2 5.2
Queue Length 50th (ft) 58 348 0 135 127 0 61 51 0 24 52 0
Queue Length 95th (ft) 91 427 24 #250 181 19 95 117 61 46 99 10
Internal Link Dist (ft)943 526 271 372
Turn Bay Length (ft) 370 1000 325 300 230 175 375 400
Base Capacity (vph) 382 2982 1219 209 3135 1254 326 219 255 319 172 228
Starvation Cap Reductn 0 0 0 0 0 0 0 0 0 0 0 0
Spillback Cap Reductn 0 0 0 0 0 0 0 0 0 0 0 0
Storage Cap Reductn 0 0 0 0 0 0 0 0 0 0 0 0
Reduced v/c Ratio 0.33 0.58 0.18 0.73 0.29 0.09 0.41 0.54 0.44 0.16 0.34 0.26
Intersection Summary
# 95th percentile volume exceeds capacity, queue may be longer.
Queue shown is maximum after two cycles.
Dec. 17, 2025 Item #1 133 of 174
HCM 6th Signalized Intersection Summary Carlsbad Costco Gas Expansion
1: Costco Access/Armada Drive & Palomar Airport Road Existing 2022 Weekday AM Peak Hour
Kittelson & Associates Synchro 11 Report
09/21/2022 Page 3
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 118 1625 204 143 860 109 125 35 181 49 55 56
Future Volume (veh/h) 118 1625 204 143 860 109 125 35 181 49 55 56
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1900 1856 1870 1885 1826 1870 1870 1900 1885 1841 1900 1796
Adj Flow Rate, veh/h 126 1729 217 152 915 116 133 0 218 52 59 60
Peak Hour Factor 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94
Percent Heavy Veh, % 0 3 2 1 5 2 2 0 1 4 0 7
Cap, veh/h 176 2804 959 175 2997 1002 184 0 294 105 136 109
Arrive On Green 0.05 0.55 0.55 0.10 0.60 0.60 0.05 0.00 0.09 0.03 0.07 0.07
Sat Flow, veh/h 3510 5066 1585 1795 4985 1585 3563 0 3195 3401 1900 1522
Grp Volume(v), veh/h 126 1729 217 152 915 116 133 0 218 52 59 60
Grp Sat Flow(s),veh/h/ln 1755 1689 1585 1795 1662 1585 1781 0 1598 1700 1900 1522
Q Serve(g_s), s 5.0 32.4 8.8 11.7 12.6 4.1 5.1 0.0 9.3 2.1 4.2 5.3
Cycle Q Clear(g_c), s 5.0 32.4 8.8 11.7 12.6 4.1 5.1 0.0 9.3 2.1 4.2 5.3
Prop In Lane 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Lane Grp Cap(c), veh/h 176 2804 959 175 2997 1002 184 0 294 105 136 109
V/C Ratio(X)0.72 0.62 0.23 0.87 0.31 0.12 0.72 0.00 0.74 0.49 0.43 0.55
Avail Cap(c_a), veh/h 384 2804 959 196 2997 1002 338 0 294 323 171 137
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I)1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.00 1.00 1.00 1.00 1.00
Uniform Delay (d), s/veh 65.5 21.2 12.6 62.3 13.6 10.2 65.4 0.0 61.9 66.7 62.3 62.8
Incr Delay (d2), s/veh 2.0 1.0 0.5 26.9 0.3 0.2 2.0 0.0 8.6 1.3 0.8 1.6
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 2.2 12.3 3.3 6.6 4.5 1.5 2.4 0.0 4.2 0.9 2.0 2.1
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 67.6 22.2 13.2 89.2 13.9 10.5 67.4 0.0 70.5 68.1 63.1 64.5
LnGrp LOS E C B F B B E A E E E E
Approach Vol, veh/h 2072 1183 351 171
Approach Delay, s/veh 24.0 23.2 69.3 65.1
Approach LOS C C E E
Timer - Assigned Phs 1 2 3 4 5 6 7 8
Phs Duration (G+Y+Rc), s 18.4 84.0 11.9 15.4 11.7 90.7 9.0 18.3
Change Period (Y+Rc), s * 4.7 6.5 * 4.7 5.4 * 4.7 6.5 * 4.7 * 5.4
Max Green Setting (Gmax), s * 15 77.5 * 13 12.6 * 15 77.5 * 13 * 13
Max Q Clear Time (g_c+I1), s 13.7 34.4 7.1 7.3 7.0 14.6 4.1 11.3
Green Ext Time (p_c), s 0.0 11.2 0.1 0.1 0.1 4.4 0.0 0.1
Intersection Summary
HCM 6th Ctrl Delay 29.8
HCM 6th LOS C
Notes
User approved pedestrian interval to be less than phase max green.
User approved volume balancing among the lanes for turning movement.
* HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.
Dec. 17, 2025 Item #1 134 of 174
HCM 6th TWSC Carlsbad Costco Gas Expansion
2: Palomar Place Shopping Center Access & Costco Access Existing 2022 Weekday AM Peak Hour
Kittelson & Associates Synchro 11 Report
09/21/2022 Page 4
Intersection
Int Delay, s/veh 2.6
Movement EBL EBR NBL NBT SBU SBT SBR
Lane Configurations
Traffic Vol, veh/h 119 12 1 221 3 302 100
Future Vol, veh/h 119 12 1 221 3 302 100
Conflicting Peds, #/hr 0 1 0 0 0 0 0
Sign Control Stop Stop Free Free Free Free Free
RT Channelized - None - None - - None
Storage Length 0 - - - - - 0
Veh in Median Storage, # 0 - - 0 - 0 -
Grade, %0 - - 0 - 0 -
Peak Hour Factor 92 92 92 92 92 92 92
Heavy Vehicles, % 1 0 0 1 0 1 1
Mvmt Flow 129 13 1 240 3 328 109
Major/Minor Minor2 Major1 Major2
Conflicting Flow All 570 329 437 0 - - 0
Stage 1 328 - - - - - -
Stage 2 242 - - - - - -
Critical Hdwy 6.41 6.2 4.1 - - - -
Critical Hdwy Stg 1 5.41 - - - - - -
Critical Hdwy Stg 2 5.41 - - - - - -
Follow-up Hdwy 3.509 3.3 2.2 - - - -
Pot Cap-1 Maneuver 485 717 1134 - - - -
Stage 1 732 - - - - - -
Stage 2 801 - - - - - -
Platoon blocked, %-- -
Mov Cap-1 Maneuver 485 716 1134 - - - -
Mov Cap-2 Maneuver 485 - - - - - -
Stage 1 731 - - - - - -
Stage 2 801 - - - - - -
Approach EB NB SB
HCM Control Delay, s 15 0
HCM LOS C
Minor Lane/Major Mvmt NBL NBT EBLn1 SBT SBR
Capacity (veh/h)1134 - 500 - -
HCM Lane V/C Ratio 0.001 - 0.285 - -
HCM Control Delay (s) 8.2 0 15 - -
HCM Lane LOS A A C - -
HCM 95th %tile Q(veh) 0 - 1.2 - -
Dec. 17, 2025 Item #1 135 of 174
Queues Carlsbad Costco Gas Expansion
1: Costco Access/Armada Drive & Palomar Airport Road Existing 2022 Weekday PM Peak Hour
Kittelson & Associates Synchro 11 Report
09/21/2022 Page 1
Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Group Flow (vph) 219 1033 175 268 1794 135 382 177 168 141 70 170
v/c Ratio 0.67 0.45 0.16 0.85 0.67 0.13 0.78 0.59 0.44 0.56 0.42 0.57
Control Delay 71.5 29.8 2.3 79.1 27.4 2.4 69.1 47.8 10.2 71.3 67.3 15.0
Queue Delay 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Delay 71.5 29.8 2.3 79.1 27.4 2.4 69.1 47.8 10.2 71.3 67.3 15.0
Queue Length 50th (ft) 101 230 0 238 409 0 175 120 0 65 63 0
Queue Length 95th (ft) 141 349 36 330 609 31 223 186 63 99 107 64
Internal Link Dist (ft)943 526 271 372
Turn Bay Length (ft) 370 1000 325 300 230 175 375 400
Base Capacity (vph) 497 2284 1182 390 2696 1131 757 391 460 382 213 335
Starvation Cap Reductn 0 0 0 0 0 0 0 0 0 0 0 0
Spillback Cap Reductn 0 0 0 0 0 0 0 0 0 0 0 0
Storage Cap Reductn 0 0 0 0 0 0 0 0 0 0 0 0
Reduced v/c Ratio 0.44 0.45 0.15 0.69 0.67 0.12 0.50 0.45 0.37 0.37 0.33 0.51
Intersection Summary
Dec. 17, 2025 Item #1 136 of 174
HCM 6th Signalized Intersection Summary Carlsbad Costco Gas Expansion
1: Costco Access/Armada Drive & Palomar Airport Road Existing 2022 Weekday PM Peak Hour
Kittelson & Associates Synchro 11 Report
09/21/2022 Page 3
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 204 961 163 249 1668 126 355 69 252 131 65 158
Future Volume (veh/h) 204 961 163 249 1668 126 355 69 252 131 65 158
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1870 1885 1885 1900 1885 1885 1900 1900 1885 1900 1900 1900
Adj Flow Rate, veh/h 219 1033 175 268 1794 135 382 222 172 141 70 170
Peak Hour Factor 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93
Percent Heavy Veh, % 2 1 1 0 1 1 0 0 1 0 0 0
Cap, veh/h 271 2364 930 293 2792 954 443 327 275 191 198 168
Arrive On Green 0.08 0.46 0.46 0.16 0.54 0.54 0.12 0.17 0.17 0.05 0.10 0.10
Sat Flow, veh/h 3456 5147 1598 1810 5147 1598 3619 1900 1598 3510 1900 1610
Grp Volume(v), veh/h 219 1033 175 268 1794 135 382 222 172 141 70 170
Grp Sat Flow(s),veh/h/ln 1728 1716 1598 1810 1716 1598 1810 1900 1598 1755 1900 1610
Q Serve(g_s), s 8.7 19.0 7.2 20.4 34.3 5.2 14.5 15.3 14.0 5.5 4.8 14.6
Cycle Q Clear(g_c), s 8.7 19.0 7.2 20.4 34.3 5.2 14.5 15.3 14.0 5.5 4.8 14.6
Prop In Lane 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Lane Grp Cap(c), veh/h 271 2364 930 293 2792 954 443 327 275 191 198 168
V/C Ratio(X)0.81 0.44 0.19 0.92 0.64 0.14 0.86 0.68 0.62 0.74 0.35 1.01
Avail Cap(c_a), veh/h 501 2364 930 392 2792 954 783 406 341 384 198 168
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I)1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Uniform Delay (d), s/veh 63.5 25.6 13.7 57.7 22.5 12.4 60.3 54.3 53.7 65.2 58.3 62.7
Incr Delay (d2), s/veh 2.2 0.6 0.4 18.8 1.2 0.3 2.0 1.9 1.0 2.1 0.4 72.7
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 3.9 7.6 2.8 10.7 13.4 2.0 6.8 7.6 5.8 2.5 2.3 9.4
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 65.7 26.2 14.2 76.5 23.6 12.7 62.2 56.2 54.7 67.3 58.7 135.4
LnGrp LOS E C B E C B E E D E E F
Approach Vol, veh/h 1427 2197 776 381
Approach Delay, s/veh 30.8 29.4 58.8 96.1
Approach LOS C C E F
Timer - Assigned Phs 1 2 3 4 5 6 7 8
Phs Duration (G+Y+Rc), s 27.3 70.8 21.9 20.0 15.7 82.5 12.3 29.5
Change Period (Y+Rc), s * 4.7 6.5 * 4.7 5.4 * 4.7 6.5 * 4.7 * 5.4
Max Green Setting (Gmax), s * 30 43.5 * 30 14.6 * 20 53.5 * 15 * 30
Max Q Clear Time (g_c+I1), s 22.4 21.0 16.5 16.6 10.7 36.3 7.5 17.3
Green Ext Time (p_c), s 0.2 4.9 0.7 0.0 0.3 8.4 0.1 1.0
Intersection Summary
HCM 6th Ctrl Delay 39.9
HCM 6th LOS D
Notes
User approved pedestrian interval to be less than phase max green.
User approved volume balancing among the lanes for turning movement.
* HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.
Dec. 17, 2025 Item #1 137 of 174
HCM 6th TWSC Carlsbad Costco Gas Expansion
2: Palomar Place Shopping Center Access & Costco Access Existing 2022 Weekday PM Peak Hour
Kittelson & Associates Synchro 11 Report
09/21/2022 Page 4
Intersection
Int Delay, s/veh 6.1
Movement EBL EBR NBL NBT SBU SBT SBR
Lane Configurations
Traffic Vol, veh/h 204 42 2 445 3 313 160
Future Vol, veh/h 204 42 2 445 3 313 160
Conflicting Peds, #/hr 0 0 0 0 0 0 0
Sign Control Stop Stop Free Free Free Free Free
RT Channelized - None - None - - None
Storage Length 0 - - - - - 0
Veh in Median Storage, # 0 - - 0 - 0 -
Grade, %0 - - 0 - 0 -
Peak Hour Factor 97 97 97 97 97 97 97
Heavy Vehicles, % 0 0 0 0 0 0 1
Mvmt Flow 210 43 2 459 3 323 165
Major/Minor Minor2 Major1 Major2
Conflicting Flow All 786 323 488 0 - - 0
Stage 1 323 - - - - - -
Stage 2 463 - - - - - -
Critical Hdwy 6.4 6.2 4.1 - - - -
Critical Hdwy Stg 1 5.4 - - - - - -
Critical Hdwy Stg 2 5.4 - - - - - -
Follow-up Hdwy 3.5 3.3 2.2 - - - -
Pot Cap-1 Maneuver 364 723 1086 - - - -
Stage 1 738 - - - - - -
Stage 2 638 - - - - - -
Platoon blocked, %-- -
Mov Cap-1 Maneuver 363 723 1086 - - - -
Mov Cap-2 Maneuver 363 - - - - - -
Stage 1 737 - - - - - -
Stage 2 638 - - - - - -
Approach EB NB SB
HCM Control Delay, s 28.8 0
HCM LOS D
Minor Lane/Major Mvmt NBL NBT EBLn1 SBT SBR
Capacity (veh/h)1086 - 397 - -
HCM Lane V/C Ratio 0.002 - 0.639 - -
HCM Control Delay (s) 8.3 0 28.8 - -
HCM Lane LOS A A D - -
HCM 95th %tile Q(veh) 0 - 4.3 - -
Dec. 17, 2025 Item #1 138 of 174
Queues Carlsbad Costco Gas Expansion
1: Costco Access/Armada Drive & Palomar Airport Road Existing 2022 Saturday Midday Peak Hour
Kittelson & Associates Synchro 11 Report
09/21/2022 Page 1
Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Group Flow (vph) 286 827 233 285 1128 121 412 192 177 42 72 151
v/c Ratio 0.75 0.37 0.21 0.84 0.43 0.12 0.80 0.57 0.42 0.27 0.49 0.53
Control Delay 73.4 29.0 2.1 74.9 22.6 2.6 69.5 47.4 9.3 68.6 73.6 12.4
Queue Delay 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Delay 73.4 29.0 2.1 74.9 22.6 2.6 69.5 47.4 9.3 68.6 73.6 12.4
Queue Length 50th (ft) 131 182 0 253 227 0 189 133 0 19 64 0
Queue Length 95th (ft) 180 263 38 335 301 29 239 212 65 39 117 48
Internal Link Dist (ft)943 526 271 372
Turn Bay Length (ft) 370 1000 325 300 230 175 375 400
Base Capacity (vph) 433 2229 1136 455 2644 1091 632 346 434 332 171 302
Starvation Cap Reductn 0 0 0 0 0 0 0 0 0 0 0 0
Spillback Cap Reductn 0 0 0 0 0 0 0 0 0 0 0 0
Storage Cap Reductn 0 0 0 0 0 0 0 0 0 0 0 0
Reduced v/c Ratio 0.66 0.37 0.21 0.63 0.43 0.11 0.65 0.55 0.41 0.13 0.42 0.50
Intersection Summary
Dec. 17, 2025 Item #1 139 of 174
HCM 6th Signalized Intersection Summary Carlsbad Costco Gas Expansion
1: Costco Access/Armada Drive & Palomar Airport Road Existing 2022 Saturday Midday Peak Hour
Kittelson & Associates Synchro 11 Report
09/21/2022 Page 3
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 263 761 214 262 1038 111 379 76 263 39 66 139
Future Volume (veh/h) 263 761 214 262 1038 111 379 76 263 39 66 139
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1900 1885 1885 1900 1885 1885 1900 1900 1900 1900 1900 1885
Adj Flow Rate, veh/h 286 827 233 285 1128 121 412 235 184 42 72 151
Peak Hour Factor 0.92 0.92 0.92 0.92 0.92 0.92 0.92 0.92 0.92 0.92 0.92 0.92
Percent Heavy Veh, % 0 1 1 0 1 1 0 0 0 0 0 1
Cap, veh/h 337 1946 812 310 2334 771 471 364 308 101 171 144
Arrive On Green 0.10 0.38 0.38 0.17 0.45 0.45 0.13 0.19 0.19 0.03 0.09 0.09
Sat Flow, veh/h 3510 5147 1598 1810 5147 1598 3619 1900 1610 3510 1900 1598
Grp Volume(v), veh/h 286 827 233 285 1128 121 412 235 184 42 72 151
Grp Sat Flow(s),veh/h/ln 1755 1716 1598 1810 1716 1598 1810 1900 1610 1755 1900 1598
Q Serve(g_s), s 11.2 16.7 11.8 21.7 21.5 5.9 15.6 16.0 14.6 1.6 5.0 12.6
Cycle Q Clear(g_c), s 11.2 16.7 11.8 21.7 21.5 5.9 15.6 16.0 14.6 1.6 5.0 12.6
Prop In Lane 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Lane Grp Cap(c), veh/h 337 1946 812 310 2334 771 471 364 308 101 171 144
V/C Ratio(X)0.85 0.42 0.29 0.92 0.48 0.16 0.88 0.65 0.60 0.42 0.42 1.05
Avail Cap(c_a), veh/h 434 1946 812 456 2334 771 654 364 308 333 171 144
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I)1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Uniform Delay (d), s/veh 62.3 32.2 19.8 57.1 26.8 20.3 59.8 52.2 51.7 66.8 60.3 63.7
Incr Delay (d2), s/veh 9.8 0.1 0.1 14.6 0.7 0.4 7.5 3.1 2.2 1.0 0.6 89.0
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 5.4 6.8 4.5 11.0 8.7 2.4 7.7 8.0 6.2 0.7 2.4 8.7
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 72.1 32.3 19.9 71.6 27.5 20.7 67.3 55.3 53.9 67.9 60.9 152.7
LnGrp LOS E C B E C C E E D E E F
Approach Vol, veh/h 1346 1534 831 265
Approach Delay, s/veh 38.6 35.2 61.0 114.3
Approach LOS D D E F
Timer - Assigned Phs 1 2 3 4 5 6 7 8
Phs Duration (G+Y+Rc), s 28.7 59.4 22.9 18.0 18.1 70.0 8.7 32.2
Change Period (Y+Rc), s * 4.7 6.5 * 4.7 5.4 * 4.7 6.5 * 4.7 * 5.4
Max Green Setting (Gmax), s * 35 45.5 * 25 12.6 * 17 63.5 * 13 * 25
Max Q Clear Time (g_c+I1), s 23.7 18.7 17.6 14.6 13.2 23.5 3.6 18.0
Green Ext Time (p_c), s 0.3 4.0 0.6 0.0 0.2 5.7 0.0 0.8
Intersection Summary
HCM 6th Ctrl Delay 47.0
HCM 6th LOS D
Notes
User approved pedestrian interval to be less than phase max green.
User approved volume balancing among the lanes for turning movement.
* HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.
Dec. 17, 2025 Item #1 140 of 174
HCM 6th TWSC Carlsbad Costco Gas Expansion
2: Palomar Place Shopping Center Access & Costco Access Existing 2022 Saturday Midday Peak Hour
Kittelson & Associates Synchro 11 Report
09/21/2022 Page 4
Intersection
Int Delay, s/veh 11
Movement EBL EBR NBL NBT SBU SBT SBR
Lane Configurations
Traffic Vol, veh/h 209 45 0 507 3 341 192
Future Vol, veh/h 209 45 0 507 3 341 192
Conflicting Peds, #/hr 0 0 0 0 0 0 4
Sign Control Stop Stop Free Free Free Free Free
RT Channelized - None - None - - None
Storage Length 0 - - - - - 0
Veh in Median Storage, # 0 - - 0 - 0 -
Grade, %0 - - 0 - 0 -
Peak Hour Factor 91 91 91 91 91 91 91
Heavy Vehicles, % 0 0 0 0 0 0 1
Mvmt Flow 230 49 0 557 3 375 211
Major/Minor Minor2 Major1 Major2
Conflicting Flow All 936 379 590 0 - - 0
Stage 1 379 - - - - - -
Stage 2 557 - - - - - -
Critical Hdwy 6.4 6.2 4.1 - - - -
Critical Hdwy Stg 1 5.4 - - - - - -
Critical Hdwy Stg 2 5.4 - - - - - -
Follow-up Hdwy 3.5 3.3 2.2 - - - -
Pot Cap-1 Maneuver 297 672 995 - - - -
Stage 1 696 - - - - - -
Stage 2 578 - - - - - -
Platoon blocked, %-- -
Mov Cap-1 Maneuver 295 669 991 - - - -
Mov Cap-2 Maneuver 295 - - - - - -
Stage 1 693 - - - - - -
Stage 2 576 - - - - - -
Approach EB NB SB
HCM Control Delay, s 56 0
HCM LOS F
Minor Lane/Major Mvmt NBL NBT EBLn1 SBT SBR
Capacity (veh/h)991 - 327 - -
HCM Lane V/C Ratio - - 0.854 - -
HCM Control Delay (s) 0 - 56 - -
HCM Lane LOS A - F - -
HCM 95th %tile Q(veh) 0 - 7.7 - -
Dec. 17, 2025 Item #1 141 of 174
Appendix D: Existing
Plus Project Traffic
Operations Worksheets
Dec. 17, 2025 Item #1 142 of 174
Queues Carlsbad Costco Gas Expansion
1: Costco Access/Armada Drive & Palomar Airport Road Existing + Expansion 2022 Weekday AM Peak Hour
Kittelson & Associates Synchro 11 Report
09/21/2022 Page 1
Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Group Flow (vph) 126 1716 246 174 907 116 164 134 128 51 65 59
v/c Ratio 0.54 0.59 0.21 0.81 0.29 0.10 0.62 0.58 0.46 0.32 0.45 0.28
Control Delay 71.3 20.8 1.2 86.8 12.7 1.4 72.6 41.2 14.5 69.5 71.9 5.0
Queue Delay 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Delay 71.3 20.8 1.2 86.8 12.7 1.4 72.6 41.2 14.5 69.5 71.9 5.0
Queue Length 50th (ft) 58 372 0 153 129 0 75 64 0 23 58 0
Queue Length 95th (ft) 91 422 25 #299 179 19 113 136 64 46 107 8
Internal Link Dist (ft)943 526 271 372
Turn Bay Length (ft) 370 1000 325 300 230 175 375 400
Base Capacity (vph) 382 2890 1202 219 3098 1243 326 231 279 319 171 227
Starvation Cap Reductn 0 0 0 0 0 0 0 0 0 0 0 0
Spillback Cap Reductn 0 0 0 0 0 0 0 0 0 0 0 0
Storage Cap Reductn 0 0 0 0 0 0 0 0 0 0 0 0
Reduced v/c Ratio 0.33 0.59 0.20 0.79 0.29 0.09 0.50 0.58 0.46 0.16 0.38 0.26
Intersection Summary
# 95th percentile volume exceeds capacity, queue may be longer.
Queue shown is maximum after two cycles.
Dec. 17, 2025 Item #1 143 of 174
HCM 6th Signalized Intersection Summary Carlsbad Costco Gas Expansion
1: Costco Access/Armada Drive & Palomar Airport Road Existing + Expansion 2022 Weekday AM Peak Hour
Kittelson & Associates Synchro 11 Report
09/21/2022 Page 2
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 118 1613 231 164 853 109 154 39 208 48 61 55
Future Volume (veh/h) 118 1613 231 164 853 109 154 39 208 48 61 55
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1900 1856 1870 1885 1826 1870 1870 1900 1885 1841 1900 1796
Adj Flow Rate, veh/h 126 1716 246 174 907 116 164 0 248 51 65 59
Peak Hour Factor 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94
Percent Heavy Veh, % 0 3 2 1 5 2 2 0 1 4 0 7
Cap, veh/h 176 2804 973 196 3055 1020 215 0 323 105 136 109
Arrive On Green 0.05 0.55 0.55 0.11 0.61 0.61 0.06 0.00 0.10 0.03 0.07 0.07
Sat Flow, veh/h 3510 5066 1585 1795 4985 1585 3563 0 3195 3401 1900 1522
Grp Volume(v), veh/h 126 1716 246 174 907 116 164 0 248 51 65 59
Grp Sat Flow(s),veh/h/ln 1755 1689 1585 1795 1662 1585 1781 0 1598 1700 1900 1522
Q Serve(g_s), s 5.0 32.0 9.9 13.4 12.1 3.9 6.3 0.0 10.6 2.1 4.6 5.2
Cycle Q Clear(g_c), s 5.0 32.0 9.9 13.4 12.1 3.9 6.3 0.0 10.6 2.1 4.6 5.2
Prop In Lane 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Lane Grp Cap(c), veh/h 176 2804 973 196 3055 1020 215 0 323 105 136 109
V/C Ratio(X)0.72 0.61 0.25 0.89 0.30 0.11 0.76 0.00 0.77 0.49 0.48 0.54
Avail Cap(c_a), veh/h 384 2804 973 196 3055 1020 338 0 323 323 171 137
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I)1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.00 1.00 1.00 1.00 1.00
Uniform Delay (d), s/veh 65.5 21.1 12.3 61.5 12.8 9.6 64.8 0.0 61.3 66.8 62.5 62.8
Incr Delay (d2), s/veh 2.0 1.0 0.6 34.1 0.2 0.2 2.1 0.0 9.7 1.3 1.0 1.6
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 2.2 12.2 3.8 7.8 4.3 1.5 3.0 0.0 4.8 0.9 2.2 0.0
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 67.6 22.1 13.0 95.6 13.1 9.8 66.9 0.0 71.0 68.1 63.5 64.4
LnGrp LOS E C B F B A E A E E E E
Approach Vol, veh/h 2088 1197 412 175
Approach Delay, s/veh 23.8 24.8 69.4 65.1
Approach LOS C C E E
Timer - Assigned Phs 1 2 3 4 5 6 7 8
Phs Duration (G+Y+Rc), s 20.0 84.0 13.2 15.4 11.7 92.3 9.0 19.5
Change Period (Y+Rc), s * 4.7 6.5 * 4.7 5.4 * 4.7 6.5 * 4.7 * 5.4
Max Green Setting (Gmax), s * 15 77.5 * 13 12.6 * 15 77.5 * 13 * 13
Max Q Clear Time (g_c+I1), s 15.4 34.0 8.3 7.2 7.0 14.1 4.1 12.6
Green Ext Time (p_c), s 0.0 11.2 0.1 0.1 0.1 4.4 0.0 0.0
Intersection Summary
HCM 6th Ctrl Delay 30.8
HCM 6th LOS C
Notes
User approved pedestrian interval to be less than phase max green.
User approved volume balancing among the lanes for turning movement.
* HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.
Dec. 17, 2025 Item #1 144 of 174
HCM 6th TWSC Carlsbad Costco Gas Expansion
2: Palomar Place Shopping Center Access & Costco AccessExisting + Expansion 2022 Weekday AM Peak Hour
Kittelson & Associates Synchro 11 Report
09/21/2022 Page 3
Intersection
Int Delay, s/veh 2.9
Movement EBL EBR NBL NBT SBU SBT SBR
Lane Configurations
Traffic Vol, veh/h 125 18 1 275 3 356 100
Future Vol, veh/h 125 18 1 275 3 356 100
Conflicting Peds, #/hr 0 1 0 0 0 0 0
Sign Control Stop Stop Free Free Free Free Free
RT Channelized - None - None - - None
Storage Length 0 - - - - - 0
Veh in Median Storage, # 0 - - 0 - 0 -
Grade, %0 - - 0 - 0 -
Peak Hour Factor 92 92 92 92 92 92 92
Heavy Vehicles, % 1 0 0 1 0 1 1
Mvmt Flow 136 20 1 299 3 387 109
Major/Minor Minor2 Major1 Major2
Conflicting Flow All 688 388 496 0 - - 0
Stage 1 387 - - - - - -
Stage 2 301 - - - - - -
Critical Hdwy 6.41 6.2 4.1 - - - -
Critical Hdwy Stg 1 5.41 - - - - - -
Critical Hdwy Stg 2 5.41 - - - - - -
Follow-up Hdwy 3.509 3.3 2.2 - - - -
Pot Cap-1 Maneuver 414 665 1078 - - - -
Stage 1 688 - - - - - -
Stage 2 753 - - - - - -
Platoon blocked, %-- -
Mov Cap-1 Maneuver 414 664 1078 - - - -
Mov Cap-2 Maneuver 414 - - - - - -
Stage 1 687 - - - - - -
Stage 2 753 - - - - - -
Approach EB NB SB
HCM Control Delay, s 17.8 0
HCM LOS C
Minor Lane/Major Mvmt NBL NBT EBLn1 SBT SBR
Capacity (veh/h)1078 - 435 - -
HCM Lane V/C Ratio 0.001 - 0.357 - -
HCM Control Delay (s) 8.3 0 17.8 - -
HCM Lane LOS A A C - -
HCM 95th %tile Q(veh) 0 - 1.6 - -
Dec. 17, 2025 Item #1 145 of 174
Queues Carlsbad Costco Gas Expansion
1: Costco Access/Armada Drive & Palomar Airport Road Existing + Expansion 2022 Weekday PM Peak Hour
Kittelson & Associates Synchro 11 Report
09/21/2022 Page 1
Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Group Flow (vph) 219 1017 218 300 1784 135 398 202 190 140 80 168
v/c Ratio 0.67 0.47 0.20 0.87 0.67 0.13 0.79 0.66 0.47 0.56 0.48 0.56
Control Delay 71.5 31.6 2.3 79.9 27.9 2.4 68.9 50.9 10.0 71.3 69.5 14.5
Queue Delay 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Delay 71.5 31.6 2.3 79.9 27.9 2.4 68.9 50.9 10.0 71.3 69.5 14.5
Queue Length 50th (ft) 101 238 0 265 411 0 182 142 0 64 72 0
Queue Length 95th (ft) 141 342 38 #387 604 31 230 214 67 99 120 62
Internal Link Dist (ft)943 526 271 372
Turn Bay Length (ft) 370 1000 325 300 230 175 375 400
Base Capacity (vph) 497 2179 1166 393 2669 1123 757 392 477 382 211 334
Starvation Cap Reductn 0 0 0 0 0 0 0 0 0 0 0 0
Spillback Cap Reductn 0 0 0 0 0 0 0 0 0 0 0 0
Storage Cap Reductn 0 0 0 0 0 0 0 0 0 0 0 0
Reduced v/c Ratio 0.44 0.47 0.19 0.76 0.67 0.12 0.53 0.52 0.40 0.37 0.38 0.50
Intersection Summary
# 95th percentile volume exceeds capacity, queue may be longer.
Queue shown is maximum after two cycles.
Dec. 17, 2025 Item #1 146 of 174
HCM 6th Signalized Intersection Summary Carlsbad Costco Gas Expansion
1: Costco Access/Armada Drive & Palomar Airport Road Existing + Expansion 2022 Weekday PM Peak Hour
Kittelson & Associates Synchro 11 Report
09/21/2022 Page 3
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 204 946 203 279 1659 126 370 75 289 130 74 156
Future Volume (veh/h) 204 946 203 279 1659 126 370 75 289 130 74 156
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1870 1885 1885 1900 1885 1885 1900 1900 1885 1900 1900 1900
Adj Flow Rate, veh/h 219 1017 218 300 1784 135 398 254 196 140 80 168
Peak Hour Factor 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93
Percent Heavy Veh, % 2 1 1 0 1 1 0 0 1 0 0 0
Cap, veh/h 271 2252 902 324 2769 946 460 336 283 190 198 168
Arrive On Green 0.08 0.44 0.44 0.18 0.54 0.54 0.13 0.18 0.18 0.05 0.10 0.10
Sat Flow, veh/h 3456 5147 1598 1810 5147 1598 3619 1900 1598 3510 1900 1610
Grp Volume(v), veh/h 219 1017 218 300 1784 135 398 254 196 140 80 168
Grp Sat Flow(s),veh/h/ln 1728 1716 1598 1810 1716 1598 1810 1900 1598 1755 1900 1610
Q Serve(g_s), s 8.7 19.4 9.6 22.8 34.3 5.3 15.1 17.8 16.1 5.5 5.5 14.6
Cycle Q Clear(g_c), s 8.7 19.4 9.6 22.8 34.3 5.3 15.1 17.8 16.1 5.5 5.5 14.6
Prop In Lane 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Lane Grp Cap(c), veh/h 271 2252 902 324 2769 946 460 336 283 190 198 168
V/C Ratio(X)0.81 0.45 0.24 0.93 0.64 0.14 0.87 0.75 0.69 0.74 0.40 1.00
Avail Cap(c_a), veh/h 501 2252 902 392 2769 946 783 406 341 384 198 168
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I)1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Uniform Delay (d), s/veh 63.5 27.6 15.4 56.6 22.9 12.7 59.9 54.7 54.0 65.2 58.6 62.7
Incr Delay (d2), s/veh 2.2 0.7 0.6 23.3 1.2 0.3 2.3 4.9 3.0 2.1 0.5 69.6
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 3.9 7.9 3.8 12.3 13.4 2.0 7.1 9.1 6.8 2.5 2.7 9.3
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 65.7 28.3 16.0 79.9 24.0 13.0 62.3 59.6 57.1 67.3 59.1 132.3
LnGrp LOS E C B E C B E E E E E F
Approach Vol, veh/h 1454 2219 848 388
Approach Delay, s/veh 32.1 30.9 60.3 93.7
Approach LOS C C E F
Timer - Assigned Phs 1 2 3 4 5 6 7 8
Phs Duration (G+Y+Rc), s 29.8 67.8 22.5 20.0 15.7 81.8 12.3 30.2
Change Period (Y+Rc), s * 4.7 6.5 * 4.7 5.4 * 4.7 6.5 * 4.7 * 5.4
Max Green Setting (Gmax), s * 30 43.5 * 30 14.6 * 20 53.5 * 15 * 30
Max Q Clear Time (g_c+I1), s 24.8 21.4 17.1 16.6 10.7 36.3 7.5 19.8
Green Ext Time (p_c), s 0.2 4.8 0.7 0.0 0.3 8.4 0.1 1.0
Intersection Summary
HCM 6th Ctrl Delay 41.3
HCM 6th LOS D
Notes
User approved pedestrian interval to be less than phase max green.
User approved volume balancing among the lanes for turning movement.
* HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.
Dec. 17, 2025 Item #1 147 of 174
HCM 6th TWSC Carlsbad Costco Gas Expansion
2: Palomar Place Shopping Center Access & Costco AccessExisting + Expansion 2022 Weekday PM Peak Hour
Kittelson & Associates Synchro 11 Report
09/21/2022 Page 4
Intersection
Int Delay, s/veh 10.4
Movement EBL EBR NBL NBT SBU SBT SBR
Lane Configurations
Traffic Vol, veh/h 213 51 2 524 3 392 160
Future Vol, veh/h 213 51 2 524 3 392 160
Conflicting Peds, #/hr 0 0 0 0 0 0 0
Sign Control Stop Stop Free Free Free Free Free
RT Channelized - None - None - - None
Storage Length 0 - - - - - 0
Veh in Median Storage, # 0 - - 0 - 0 -
Grade, %0 - - 0 - 0 -
Peak Hour Factor 97 97 97 97 97 97 97
Heavy Vehicles, % 0 0 0 0 0 0 1
Mvmt Flow 220 53 2 540 3 404 165
Major/Minor Minor2 Major1 Major2
Conflicting Flow All 948 404 569 0 - - 0
Stage 1 404 - - - - - -
Stage 2 544 - - - - - -
Critical Hdwy 6.4 6.2 4.1 - - - -
Critical Hdwy Stg 1 5.4 - - - - - -
Critical Hdwy Stg 2 5.4 - - - - - -
Follow-up Hdwy 3.5 3.3 2.2 - - - -
Pot Cap-1 Maneuver 292 651 1013 - - - -
Stage 1 679 - - - - - -
Stage 2 586 - - - - - -
Platoon blocked, %-- -
Mov Cap-1 Maneuver 291 651 1013 - - - -
Mov Cap-2 Maneuver 291 - - - - - -
Stage 1 677 - - - - - -
Stage 2 586 - - - - - -
Approach EB NB SB
HCM Control Delay, s 53.2 0
HCM LOS F
Minor Lane/Major Mvmt NBL NBT EBLn1 SBT SBR
Capacity (veh/h)1013 - 326 - -
HCM Lane V/C Ratio 0.002 - 0.835 - -
HCM Control Delay (s) 8.6 0 53.2 - -
HCM Lane LOS A A F - -
HCM 95th %tile Q(veh) 0 - 7.3 - -
Dec. 17, 2025 Item #1 148 of 174
Queues Carlsbad Costco Gas Expansion
1: Costco Access/Armada Drive & Palomar Airport Road Existing + Expansion 2022 Saturday Midday Peak Hour
Kittelson & Associates Synchro 11 Report
09/21/2022 Page 1
Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Group Flow (vph) 286 805 293 333 1114 121 480 226 209 40 86 149
v/c Ratio 0.75 0.40 0.28 0.88 0.44 0.12 0.85 0.62 0.44 0.26 0.57 0.52
Control Delay 73.5 32.4 4.3 77.2 24.0 2.7 71.6 47.9 8.7 68.6 76.9 11.5
Queue Delay 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Total Delay 73.5 32.4 4.3 77.2 24.0 2.7 71.6 47.9 8.7 68.6 76.9 11.5
Queue Length 50th (ft) 131 193 23 295 235 0 220 158 0 18 77 0
Queue Length 95th (ft) 180 258 73 395 297 29 279 250 71 39 134 45
Internal Link Dist (ft)943 526 271 372
Turn Bay Length (ft) 370 1000 325 300 230 175 375 400
Base Capacity (vph) 433 2037 1083 455 2559 1066 632 368 476 332 171 302
Starvation Cap Reductn 0 0 0 0 0 0 0 0 0 0 0 0
Spillback Cap Reductn 0 0 0 0 0 0 0 0 0 0 0 0
Storage Cap Reductn 0 0 0 0 0 0 0 0 0 0 0 0
Reduced v/c Ratio 0.66 0.40 0.27 0.73 0.44 0.11 0.76 0.61 0.44 0.12 0.50 0.49
Intersection Summary
Dec. 17, 2025 Item #1 149 of 174
HCM 6th Signalized Intersection Summary Carlsbad Costco Gas Expansion
1: Costco Access/Armada Drive & Palomar Airport Road Existing + Expansion 2022 Saturday Midday Peak Hour
Kittelson & Associates Synchro 11 Report
09/21/2022 Page 3
Movement EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR
Lane Configurations
Traffic Volume (veh/h) 263 741 270 306 1025 111 442 85 316 37 79 137
Future Volume (veh/h) 263 741 270 306 1025 111 442 85 316 37 79 137
Initial Q (Qb), veh 0 0 0 0 0 0 0 0 0 0 0 0
Ped-Bike Adj(A_pbT) 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Parking Bus, Adj 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Work Zone On Approach No No No No
Adj Sat Flow, veh/h/ln 1900 1885 1885 1900 1885 1885 1900 1900 1900 1900 1900 1885
Adj Flow Rate, veh/h 286 805 293 333 1114 121 480 280 218 40 86 149
Peak Hour Factor 0.92 0.92 0.92 0.92 0.92 0.92 0.92 0.92 0.92 0.92 0.92 0.92
Percent Heavy Veh, % 0 1 1 0 1 1 0 0 0 0 0 1
Cap, veh/h 337 1812 799 357 2334 770 537 399 338 99 171 144
Arrive On Green 0.10 0.35 0.35 0.20 0.45 0.45 0.15 0.21 0.21 0.03 0.09 0.09
Sat Flow, veh/h 3510 5147 1598 1810 5147 1598 3619 1900 1610 3510 1900 1598
Grp Volume(v), veh/h 286 805 293 333 1114 121 480 280 218 40 86 149
Grp Sat Flow(s),veh/h/ln 1755 1716 1598 1810 1716 1598 1810 1900 1610 1755 1900 1598
Q Serve(g_s), s 11.2 16.8 15.7 25.3 21.1 5.9 18.2 19.1 17.3 1.6 6.0 12.6
Cycle Q Clear(g_c), s 11.2 16.8 15.7 25.3 21.1 5.9 18.2 19.1 17.3 1.6 6.0 12.6
Prop In Lane 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Lane Grp Cap(c), veh/h 337 1812 799 357 2334 770 537 399 338 99 171 144
V/C Ratio(X)0.85 0.44 0.37 0.93 0.48 0.16 0.89 0.70 0.64 0.40 0.50 1.04
Avail Cap(c_a), veh/h 434 1812 799 456 2334 770 654 399 338 333 171 144
HCM Platoon Ratio 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Upstream Filter(I)1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Uniform Delay (d), s/veh 62.3 34.8 21.4 55.2 26.7 20.3 58.5 51.2 50.5 66.9 60.7 63.7
Incr Delay (d2), s/veh 9.8 0.1 0.1 20.7 0.7 0.4 11.6 4.6 3.3 1.0 0.9 85.0
Initial Q Delay(d3),s/veh 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
%ile BackOfQ(50%),veh/ln 5.4 6.9 6.0 13.3 8.5 2.4 9.3 9.7 7.4 0.7 2.9 8.6
Unsig. Movement Delay, s/veh
LnGrp Delay(d),s/veh 72.1 34.9 21.5 75.9 27.4 20.8 70.1 55.8 53.8 67.9 61.6 148.7
LnGrp LOS E C C E C C E E D E E F
Approach Vol, veh/h 1384 1568 978 275
Approach Delay, s/veh 39.7 37.2 62.4 109.7
Approach LOS D D E F
Timer - Assigned Phs 1 2 3 4 5 6 7 8
Phs Duration (G+Y+Rc), s 32.4 55.8 25.5 18.0 18.1 70.0 8.6 34.8
Change Period (Y+Rc), s * 4.7 6.5 * 4.7 5.4 * 4.7 6.5 * 4.7 * 5.4
Max Green Setting (Gmax), s * 35 45.5 * 25 12.6 * 17 63.5 * 13 * 25
Max Q Clear Time (g_c+I1), s 27.3 18.8 20.2 14.6 13.2 23.1 3.6 21.1
Green Ext Time (p_c), s 0.3 4.0 0.5 0.0 0.2 5.6 0.0 0.6
Intersection Summary
HCM 6th Ctrl Delay 48.6
HCM 6th LOS D
Notes
User approved pedestrian interval to be less than phase max green.
User approved volume balancing among the lanes for turning movement.
* HCM 6th computational engine requires equal clearance times for the phases crossing the barrier.
Dec. 17, 2025 Item #1 150 of 174
HCM 6th TWSC Carlsbad Costco Gas Expansion
2: Palomar Place Shopping Center Access & Costco AccessExisting + Expansion 2022 Saturday Midday Peak Hour
Kittelson & Associates Synchro 11 Report
09/21/2022 Page 4
Intersection
Int Delay, s/veh 35.1
Movement EBL EBR NBL NBT SBU SBT SBR
Lane Configurations
Traffic Vol, veh/h 222 58 0 619 3 454 192
Future Vol, veh/h 222 58 0 619 3 454 192
Conflicting Peds, #/hr 0 0 0 0 0 0 4
Sign Control Stop Stop Free Free Free Free Free
RT Channelized - None - None - - None
Storage Length 0 - - - - - 0
Veh in Median Storage, # 0 - - 0 - 0 -
Grade, %0 - - 0 - 0 -
Peak Hour Factor 91 91 91 91 91 91 91
Heavy Vehicles, % 0 0 0 0 0 0 1
Mvmt Flow 244 64 0 680 3 499 211
Major/Minor Minor2 Major1 Major2
Conflicting Flow All 1183 503 714 0 - - 0
Stage 1 503 - - - - - -
Stage 2 680 - - - - - -
Critical Hdwy 6.4 6.2 4.1 - - - -
Critical Hdwy Stg 1 5.4 - - - - - -
Critical Hdwy Stg 2 5.4 - - - - - -
Follow-up Hdwy 3.5 3.3 2.2 - - - -
Pot Cap-1 Maneuver ~ 211 573 895 - - - -
Stage 1 612 - - - - - -
Stage 2 507 - - - - - -
Platoon blocked, %-- -
Mov Cap-1 Maneuver ~ 209 571 892 - - - -
Mov Cap-2 Maneuver ~ 209 - - - - - -
Stage 1 610 - - - - - -
Stage 2 505 - - - - - -
Approach EB NB SB
HCM Control Delay, s 193.8 0
HCM LOS F
Minor Lane/Major Mvmt NBL NBT EBLn1 SBT SBR
Capacity (veh/h)892 - 241 - -
HCM Lane V/C Ratio - - 1.277 - -
HCM Control Delay (s) 0 - 193.8 - -
HCM Lane LOS A - F - -
HCM 95th %tile Q(veh) 0 - 15.7 - -
Notes
~: Volume exceeds capacity $: Delay exceeds 300s +: Computation Not Defined *: All major volume in platoon
Dec. 17, 2025 Item #1 151 of 174
Appendix E: Transit
MMLOS Worksheets
Dec. 17, 2025 Item #1 152 of 174
ROADWAY INFO
Roadway Name
From
To
Street Typology from Mobility Element _
Average Daily Traffic (ADT) volume (2-way total)
TRANSIT
Roadway Direction
EB WB
* Transit stop amenities available:
Do the sidewalks or path to the transit stop appear to be
ADA compliant?Yes Yes
Do multiple transit routes stop on the study segment?Yes Yes
Do any of the routes provide a direct link to a COASTER
station or mobility hub?Yes Yes
Do any of the routes provide a single transfer to reach a
COASTER station or mobility hub?No No
* Closest distance to existing transit stop:<= 1/4 mile walk to bus only <= 1/4 mile walk to bus only
What type of transit priority is present?None present None present
Headways between 6:30-8:30 am and 4-6 pm on
weekdays:1 hour 1 hour
Is there commute shuttle service provided during the
morning and afternoon commute periods?No No
On weekends, are the headways no more than 1 hour
headways between 9 am-5 pm?No No
Is there bike parking available at the bus stop?No No
Is the bus stop within 1/4 mile of a bike repair shop?No No
* Is area governed by an adopted TDM ordinance that will
promote ridesharing and/or the use of non-auto modes?No No
* Are On Demand rideshare services available?Yes, less than 50% subsidized
* Is the study segment within FLEX service area?No
Palomar Airport Road
Paseo del Norte
Armada Drive
Arterial
40,000
Covered Bus Stop
Bench
Well-lit Stops
Trash Cans
Stop located within a block of
commercial users
Covered Bus Stop
Bench
Well-lit Stops
Trash Cans
Stop located within a block of
commercial users
0 | F
EB SCORE | LOS
0 | F
WB SCORE | LOS
X
*Indicates an essential feature that strongly supports and promotes the goals identifed in the Climate Action Plan (CAP).
Dec. 17, 2025 Item #1 153 of 174
Project:
Segment:
Scenario:
By:
EB WB
Points Points Assigned Points Assigned
No greater than 1/4 mile walk to the nearest transit stop
50 (rail/bus)
30 (bus)30 30
No greater than 1/2 mile walk to the nearest transit stop
30 (rail/bus)
20 (bus)0 0
No greater than 1 mile bicycle ride to the nearest transit stop 5 0 0
ADA compliant sidewalk or path to transit stops in both
directions 15 15 15
Multiple transit routes stop on segment 10 10 10
Route provides a direct link to a COASTER station or mobility
hub 15 15 15
Route provides for a single transfer to reach a COASTER station
or mobility hub 5 0 0
Dedicated right of way 5 0 0
Transit priority during peak hours 5 0 0
Headways of 15 minutes between 6:30-8:30 am and 4-6 pm
on weekdays 15 0 0
Headways of 30 minutes between 6:30-8:30 am and 4-6 pm on
weekdays 5 0 0
Headways of 1 hour between 6:30-8:30 am and 4-6 pm on
weekdays 2 2 2
Commute shuttle service provided during the morning and
afternoon commute periods 10 0 0
No more than 1 hour headways between 9 am and 5 pm on
weekends 5 0 0
Covered bus stops 5 0 0
Bench 10 0 0
Well-lit stop that provides a sense of security 5 0 0
Trash cans 2 0 0
Bus stop located within a block of commercial services 5 5 5
Bike parking available at the bus stop 5 0 0
Bus stop within 1/4 mile of a bike repair shop 5 0 0
Area governed by an adopted TDM ordinance that will
promote ridesharing and/or the use of non-auto modes 60 0 0
On demand rideshare services available 60 0 0
Segment within FLEX service area 60 0 0
77 77
C C
Transit Stop Located Within 1/2 Mile Walk from Subject Site or Roadway Segment
Connectivity
Transit priority
Service
Bicycle
Accommodations
No Transit Stop Located Within 1/2 Mile Walk from Subject Site or Roadway Segment
Amenities
Available Mobility
Services
Total Score:
Transit LOS:
Kittelson & Associates, Inc.
Existing
Carlsbad Costco Fuel Station Expansion
Palomar Airport Road From Paseo del Norte To Armada Drive
Transit & Ridesharing MMLOS Criteria
Criteria
Access
Dec. 17, 2025 Item #1 154 of 174
Appendix F:
Queue Management
Plan
Dec. 17, 2025 Item #1 155 of 174
Kittelson & Associates, Inc. Orange, California
Technical Memorandum
This memorandum documents a queue management plan concept for implementation as needed at the
Carlsbad Costco (#462) fuel station. For purposes of this plan, queue management is expected to involve
up to three Costco fuel station employees, depending on the preference of the operator, to manage the
location where members line up to wait for an available fueling position and manage the space between
vehicles. During a typical workday, there are typically two trained employees onsite at all times. If a QMP is
implemented, additional staff from the warehouse can assist.
Queue Management Plan
Queue management techniques can be employed if vehicle queues extend beyond the designated fuel
facility queue storage area. Costco prioritizes operating its fuel facilities effectively to serve members as
efficiently as possible while maintaining queues within the queue storage area and avoiding queue
spillback that would affect circulation in the parking field or at driveways. To that end, Costco takes a
three-tiered approach to queue management.
Tier 1. At all of Costco’s sites and during all hours a fuel facility is open, a trained employee staffs
the fuel facility to manage incoming vehicles and direct members either to vacant pumps or to
the shortest individual queue behind the pumps.
Tier 2. When activity at the fuel facility is busier, a second trained employee staffs the fuel facility to
provide more targeted management of the queues. This person guides members to move forward
and keep vehicles closely spaced end-to-end, thereby maximizing the use of the queue storage
area.
Tier 3. If the number of members arriving to purchase fuel causes queues behind the pumps to
exceed the queue storage area1, Costco implements a temporary queue management plan to
maintain queues on-site without impacting other businesses or public street operations. A third
employee would be needed to assist with directing traffic to the relocated queue. This condition
may be temporally observed before a holiday weekend and midday on Saturdays at some sites.
1 The fuel facility queue area is located from the pumps entrance to the internal driveway along the eastern boundary of
the site.
750 The City Drive, Suite 410
Orange, CA 92868
P 714.468.1186
May 23, 2024 Project# 27538
To: Therese Garcia
Costco Wholesale
999 Lake Drive, Issaquah, WA, 98027
From: Fernando Sotelo, Mychal Loomis, and Karen Phan
RE: Carlsbad Costco Fuel Station Queue Management Plan
Dec. 17, 2025 Item #1 156 of 174
May 23, 2024 Page 2
Carlsbad Costco Fuel Station Queue Management Plan
Kittelson & Associates, Inc. Orange, California
Expanded Fuel Station Queue Management
Figure 1 illustrates the expanded queue management components, including:
◼ Place temporary orange cones across the fuel station entry area as indicated in the figure to prevent
vehicles from entering without being directed to do so. Maintain a width of 24 feet to allow two way
travel on the adjacent roadway.
◼ Place temporary orange cones creating an internal queue area as indicated in the figure.
◼ Place temporary signs with “COSTCO GAS THIS WAY.” and right-pointing arrows along the closed
entry area of the fuel station as shown in “A” in the figure.
◼ Place temporary signs with “COSTCO GAS THIS WAY.” and right-pointing arrows along the closed
drive aisle as shown in “B” in the figure.
◼ Place temporary sign “TURN HERE FOR GAS.” with right-turn arrow at “C” and “D” indicated in the
figure.
◼ Place temporary sign “TURN HERE FOR GAS.” with left-turn arrow at “E” and “F” indicated in the figure.
◼ Place temporary sign 'WAIT HERE FOR GAS.’ at the east end of the parking aisle at “G” indicated in the
figure for excess queue storage.
◼ A trained Costco fuel station employee should be assigned at the regular entry area (near “G” in the
figure) to restrict access to the fuel station and direct vehicles to the queue entrance.
o This employee should use the orange cones to restrict access until the queue storage area
behind the pumps has room for additional vehicles to enter.
o This employee should reroute any vehicle trying to enter fuel station by approaching from
anywhere other than the on-site queue storage to the designated excess queue area.
o When the queue storage area can handle additional vehicles, this employee directs vehicles
from the queued vehicles in the coned off aisle to enter the fuel station area.
o This employee should exercise caution in conducting their work, particularly avoiding walking in
front of vehicles entering the fuel station area.
◼ A second trained Costco fuel station employee should facilitate queue management within the parking
aisle area (near “B”) indicated in the figure.
o This employee is generally expected to guide and direct members and actively manage the
spacing between vehicles within the coned off queue lane.
o This employee should help the vehicles form queues in the coned off lane and direct vehicles
not going to the fuel station towards the outer roadway.
o This employee should encourage members to pull forward so that they do not leave large gaps
between their front bumper and the vehicle ahead of them, to the extent safe and practical.
o The employee at this location should communicate with the employee regulating traffic at the
entrance of the fuel station (near “G” in the figure) to when facilitate flows of vehicles moving
from the coned off queue lane to the fuel station area.
o This employee should exercise caution in conducting their work, particularly avoiding walking
between moving vehicles or in spaces where they could otherwise become trapped.
Dec. 17, 2025 Item #1 157 of 174
May 23, 2024 Page 3
Carlsbad Costco Fuel Station Queue Management Plan
Kittelson & Associates, Inc. Orange, California
◼ A third trained employee should be assigned to the queue storage area behind the fuel pumps.
o This employee is generally expected to guide and direct members within the queue storage
area to the shortest queue and actively manage the spacing between vehicles.
o This employee should encourage members to pull forward so that they do not leave large gaps
between their front bumper and the vehicle ahead of them, to the extent safe and practical.
o This employee should exercise caution in conducting their work, particularly avoiding walking
between moving vehicles or in spaces where they could otherwise become trapped.
This is the conceptual suggestion for Costco staff to review, refine, and implement based on local experience
and their experience through implementation. If you have any questions or require any additional
information, please contact Fernando Sotelo at fsotelo@kittelson.com or 714-468-1186.
Dec. 17, 2025 Item #1 158 of 174
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Proposed Queue Management Plan
Carlsbad, California 1
Carlsbad Costco Fuel Station Expansion September 2023
Figure
Queue
Storage
Area
B
C
F
D
E
G *
*
*
LEGEND
"COSTCO GAS THIS WAY" SIGN
"COSTCO GAS TURN HERE" SIGN
"WAIT HERE FOR GAS" SIGN
MEMBER CIRCULATION
CONE LOCATIONS
ATTENDANT LOCATIONS*
x
x
A
May 2024
Dec. 17, 2025 Item #1 159 of 174
Exhibit 6
Dec. 17, 2025 Item #1 160 of 174Dec. 17, 2025 Item #1 160 of 174
Dec. 17, 2025 Item #1 161 of 174Dec. 17, 2025 Item #1 161 of 174
Dec. 17, 2025 Item #1 162 of 174Dec. 17, 2025 Item #1 162 of 174
Exhibit 7
NOTICE OF EXEMPTION
To: Assessor/Recorder/County Clerk From: CITY OF CARLSBAD
Attn: Fish and Wildlife Notices Planning Division
1600 Pacific Highway, Suite 260 1635 Faraday Avenue
San Diego CA 92101 Carlsbad, CA 92008
MS: A-33 (442) 339-2600
Subject: Filing of this Notice of Exemption is in compliance with Section 21152b of the Public Resources
Code (California Environmental Quality Act).
Project Number and Title: AMEND 2022-0020 / AMEND 2022-0021 / AMEND 2022-0022 – COSTCO FUEL
EXPANSION PROJECT
Project Location - Specific: 950 Palomar Airport Road
Project Location - City: Carlsbad Project Location - County: San Diego
Description of Project: To approve existing fueling facility for the addition of 4 fuel pumps, one
underground storage tank, the relocation of a retaining wall, and the expansion of canopy area.
Name of Public Agency Approving Project: City of Carlsbad
Name of Person or Agency Carrying Out Project: Mike Strong, Asst. Director of Community Development
Name of Applicant: City of Carlsbad - Community Development Department - Planning Division
Applicant’s Address: 1635 Faraday Ave. Carlsbad, CA 92008
Applicant’s Telephone Number: 442-339-2721
Name of Applicant/Identity of person undertaking the project (if different from the applicant above):
N/A
Exempt Status: Article 5 Section 15301(e)(2)
Reasons why project is exempt: The site is developed with a Costco warehouse and an existing
commercial fuel dispensing station use, with twenty-two (22) vehicle fueling positions located on the east
side of the property. There is a retail building that includes fast-food and small retail shops located just
north of the Costco before reaching Palomar Airport Road. The on-site expansion would maintain the
existing fuel station location and expand the facility to a total of thirty (30) vehicle fueling positions to
better serve peak period demand and reduce peak period queuing, wait times, and idling.
The proposed project would also include the removal and replacement of asphalt pavement, concrete
curbs, and landscaping to accommodate the fuel dispensing station. The existing canopy area is 5,874
square feet and would increase to 9,550 with the expansion. The city has determined that the project is
categorically exempt from further review per Section 15301(e)(2), Class 1, Existing Facilities. Where public
services are already available for the maximum development allowable and where the area is not
Dec. 17, 2025 Item #1 163 of 174Dec. 17, 2025 Item #1 163 of 174
historically significant, or subject to landslide hazard, the 10,000-square-foot addition will normally apply
in Carlsbad. In an area where services are not available for maximum permitted development, the 50
percent or 2,500-square-foot limitation will apply. Note that the latter is “whichever is less" and that 50
percent means 1/2 of the existing structure's floor area -- the building may not be doubled in size.
The city has determined that the project qualifies for Class 1 categorical exemption because the addition
to the existing dispensing station structure will not result in an increase of more than 10,000 square feet,
the project is in an area where all public services and facilities are available to allow for maximum
development permissible in the General Plan, and the area in which the project is located is not
environmentally sensitive. Furthermore, the facility expansion and the internal reconfiguration of queuing
lanes, and removal and replacement of trees constitute a minor alteration of existing private facilities
involving negligible or no expansion of existing use. The operational intersection analysis shows that the
market area of the Carlsbad Costco is already defined through existing membership and operations. As
such, the change in fuel station trip generation would not increase directly in proportion to the increased
number of fueling positions. Rather, the additional fueling positions will serve to process the current peak
demand at the fuel station more efficiently and effectively, thus reducing wait times, vehicle queuing, and
vehicle idling. Additionally, given the established market in Carlsbad, the fuel station expansion does not
anticipate any new Costco member enrollment or additional warehouse trips to result from the
expansion. Consequently, the city finds that no additional environmental analysis is necessary to meet the
requirements of the CEQA.
Exceptions to Exemptions
CEQA Section 15300.2 – Exceptions
Planning staff evaluated all the potential exceptions to the use of Categorical Exemptions for the proposed
project (in accordance with CEQA Guidelines Section 15300.2) and determined that none of these
exceptions apply as explained below:
a. Location. Classes 3, 4, 5, 6, and 11 are qualified by consideration of where the project is to be located
- a project that is ordinarily insignificant in its impact on the environment may in a particularly sensitive
environment be significant. Therefore, these classes are considered to apply in all instances, except
where the project may impact on an environmental resource of hazardous or critical concern where
designated, precisely mapped, and officially adopted pursuant to law by federal, state, or local
agencies.
Response – The project location is not considered to be a particularly sensitive environment due to
the following reasons:
The site is not located within an Existing or Proposed Hardline Conservation Area or Standards Area
of the Habitat Management Plan and the project site is currently developed. Therefore, the project
will not have an impact on an environmental resource of hazardous or critical concern.
b. Cumulative Impact - “All exemptions for these classes are inapplicable when the cumulative impact of
successive projects of the same type in the same place, over time is significant.”
Response – There is no evidence of successive similar projects in the area that would result in
cumulative environmental impacts. The project consists of a Costco warehouse and an existing
commercial fuel dispensing station use. The on-site expansion would maintain the existing fuel station
Dec. 17, 2025 Item #1 164 of 174Dec. 17, 2025 Item #1 164 of 174
location and expand the facility to a total of thirty (30) vehicle fueling positions to better serve peak
period demand and reduce peak period queuing, wait times, and idling. The Project will not contribute
to cumulative impacts related to air quality, noise, transportation, or other environmental concerns.
Therefore, this exception does not apply.
c. Significant Effect - “A categorical exemption shall not be used for any activity where there is a
reasonable possibility that the activity will have a significant effect on the environment due to unusual
circumstances. Examples include projects, which may affect scenic or historical resources.”
Response – There are no unusual circumstances that would have a significant impact on the
environment due to the project. The Project does not involve any unusual circumstances.
d. Scenic Highway - “A categorical exemption shall not be used for a project which may result in damage
to scenic resources, including but not limited to, trees, historic buildings, rock outcroppings, or similar
resources, within a highway officially designated as a state scenic highway. This does not apply to
improvements which are required as mitigation by an adopted negative declaration or certified EIR.”
Response – Palomar Airport Road is not considered a historical and scenic corridor throughout
Carlsbad, is not a highway officially designated as a State Scenic Highway, nor is it easily visible from a
Carlsbad historical or scenic corridor or State Scenic Highway. The project site is also surrounded by
existing residential structures. Therefore, implementation of the Project will result in similar visual
conditions compared with a no-project scenario.
e. Hazardous Waste Site - “A categorical exemption shall not be used for a project located on a site which
is included on any list compiled pursuant to Section 65962.5 of the Government Code.”
Response – A review of available records did not identify any sites which are included on any list
compiled pursuant to Section 65962.4 of the Government Code.
f. Historical Resources - “A categorical exemption shall not be used for a project which may cause a
substantial adverse change in the significance of a historical resource.”
Response – There is no evidence that the project site contains or is associated with any historical
resources. Therefore, this exception does not apply.
Carlsbad Municipal Code Section 19.04.070(C) - Exceptions
Exceptions. Even though a project may otherwise be eligible for an exemption, no exemption shall apply
in the following circumstances:
1. Grading and clearing activities affecting sensitive plant or animal habitats, which disturb, fragment or
remove such areas as defined by either the California Endangered Species Act (Fish and Game
Code Sections 2050 et seq.), or the Federal Endangered Species Act (16 U.S.C. Section 15131 et seq.);
sensitive, rare, candidate species of special concern; endangered or threatened biological species or
their habitat (specifically including sage scrub habitat for the California Gnatcatcher); or
archaeological or cultural resources from either historic or prehistoric periods;
Or
Dec. 17, 2025 Item #1 165 of 174Dec. 17, 2025 Item #1 165 of 174
2. Parcel maps, plot plans and all discretionary development projects otherwise exempt but which affect
sensitive, threatened, or endangered biological species or their habitat (as defined above),
archaeological or cultural resources from either historic or prehistoric periods, wetlands, stream
courses designated on U.S. Geological Survey maps, hazardous materials, unstable soils, or other
factors requiring special review, on all or a portion of the site. (Ord. NS-593, 2001)
Response – The Project site is located in a developed part of the city, surrounded by commercial land
uses and activities. The site is developed with a Costco warehouse and an existing commercial fuel
dispensing station use, with twenty-two (22) vehicle fueling positions located on the east side of the
property. There is a retail building that includes fast-food and small retail shops located just north of
the Costco before reaching Palomar Airport Road. The expansion of the facility to a total of thirty (30)
vehicle fueling positions is occurring in a disturbed area of the property. There is no value as habitat
for endangered, rare, or threatened species. Furthermore, the site is not within mapped areas of
potential critical habitat as depicted in the City’s General Plan1.
Given the lack of proposed grading or ground disturbance, the likelihood of encountering intact
archaeological or cultural resources on the project site is low. The site has been previously disturbed,
which further reduces the potential for the discovery of such resources.
Lead Agency Contact Person: Mike Strong Telephone: 442-339-2721
1 City of Carlsbad. 2015 City of Carlsbad General Plan – Open Space, Conservation, and Recreation Element. Adopted
September 2015. https://www.carlsbadca.gov/home/showpublisheddocument/3424/637434861099030000
Dec. 17, 2025 Item #1 166 of 174Dec. 17, 2025 Item #1 166 of 174
76.6'
76.4'
80
.
9
'
X
XX
X
X X X
THIS PLAN HAS BEEN
PREPARED BY USING
PROPERTY INFORMATION
PROVIDED BY OTHERS.
COSTCO WHOLESALE
999 LAKE DRIVE
ISSAQUAH, WA 98027
PROJECT DATA
BOUNDARIES
INFORMATION:
CLIENT:
PROJECT ADDRESS:951 PALOMAR AIRPORT ROAD
CARLSBAD, CA 92009
SITE AREA:14.80 ACRES (644,688 S.F.)
NOTES:
EXISTING CONDITIONS TO BE FIELD VERIFIED.
PARKING DATA:
EXISTING PARKING:
TOTAL PARKING
HANDICAP STALLS
9' WIDE STALLS
745 STALLS
727 STALLS
18 STALLS
FOOD SERVICE
TIRE CENTER
BUILDING AREA
BUILDING DATA:
1,340 S.F.
6,373 S.F.
141,944 S.F.
NO. OF STALLS PER 1000 S.F.
OF EXIST. BUILDING AREA:4.98 STALLS
TOTAL BUILDING 149,657 S.F.
PROPOSED PARKING:
TOTAL PARKING
HANDICAP STALLS
9' WIDE STALLS
745 STALLS
727 STALLS
18 STALLS
SCOPE OF WORK:
SCALE: 1"=60'
PLANNING COMMISSIN EXHIBIT 11/24/2025
1
Dec. 17, 2025 Item #1 167 of 174
THIS PLAN HAS BEEN
PREPARED BY USING
PROPERTY INFORMATION
PROVIDED BY OTHERS.
COSTCO WHOLESALE
999 LAKE DRIVE
ISSAQUAH, WA 98027
PROJECT DATA
BOUNDARIES
INFORMATION:
CLIENT:
PROJECT ADDRESS:951 PALOMAR AIRPORT ROAD
CARLSBAD, CA 92009
SITE AREA:14.80 ACRES (644,688 S.F.)
NOTES:
EXISTING CONDITIONS TO BE FIELD VERIFIED.
PARKING DATA:
EXISTING PARKING:
TOTAL PARKING
HANDICAP STALLS
9' WIDE STALLS
745 STALLS
727 STALLS
18 STALLS
FOOD SERVICE
TIRE CENTER
BUILDING AREA
BUILDING DATA:
1,340 S.F.
6,373 S.F.
141,944 S.F.
NO. OF STALLS PER 1000 S.F.
OF EXIST. BUILDING AREA:4.98 STALLS
TOTAL BUILDING 149,657 S.F.
PROPOSED PARKING:
TOTAL PARKING
HANDICAP STALLS
9' WIDE STALLS
745 STALLS
727 STALLS
18 STALLS
SCOPE OF WORK:
SCALE: 1"=20'
PLANNING COMMISSIN EXHIBIT 11/24/2025
2
Dec. 17, 2025 Item #1 168 of 174
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PROPOSED BARRIER CURB TO
BORDER ALL NEW LANDSCAPE BEDS,
TYPICAL. SEE CIVIL SET FOR DETAIL
MAINTAIN EXISTING BARRIER CURB
ADJACENT TO ALL EXISTING
LANDSCAPE BEDS
PROPOSED BARRIER CURB TO
BORDER ALL NEW LANDSCAPE BEDS,
TYPICAL. SEE CIVIL SET FOR DETAIL
MAINTAIN EXISTING BARRIER CURB
ADJACENT TO ALL EXISTING
LANDSCAPING
6'
27'
15'
331 SQ FT OF NEW LANDSCAPE BED
CREATED
128 SQ FT OF NEW LANDSCAPE BED
CREATED
27 SQ FT OF NEW LANDSCAPE BED
CREATED
ALL LANDSCAPE AREAS SHALL HAVE POSITIVE DRAINAGE (2% GRADE IN PLANTING AREAS) AWAY FROM ALL
STRUCTURES AND TERMINATING IN AN APPROVED DRAINAGE SYSTEM.
ALL ABOVE-GROUND UTILITIES ARE TO BE SCREENED.
EXISTING AREAS OF LANDSCAPE TO REMAIN SHOULD BE FILLED IN WITH MATCHING PLANT MATERIAL. ALL
BEDS SHOULD BE PLANTED OUT PER THE ORIGINAL PLANS UNLESS REDESIGNED ON THESE PLANS.
LANDSCAPE CONTRACTOR TO ADD ADDITIONAL SHRUBS TO AREAS WITHIN THE WORK LIMITS THAT HAVE
EMPTY AREAS.
ANY EXISTING LANDSCAPE ELEMENTS DAMAGED DURING CONSTRUCTION SHALL BE REPLACED IN KIND.
ONLY SUBSURFACE IRRIGATION SHALL BE USED TO IRRIGATE ANY VEGETATION WITHIN TWENTY-FOUR INCHES
OF AN IMPERMEABLE SURFACE UNLESS THE ADJACENT IMPERMEABLE SURFACES ARE DESIGNED AND
CONSTRUCTED TO CAUSE WATER TO DRAIN ENTIRELY INTO A LANDSCAPED AREA.
AT THE TIME OF FINAL INSPECTION, THE PERMIT APPLICANT MUST PROVIDE THE OWNER OF THE PROPERTY
WITH A CERTIFICATE OF COMPLETION, CERTIFICATE OF INSTALLATION, IRRIGATION SCHEDULE AND A
SCHEDULE OF LANDSCAPE AND IRRIGATION MAINTENANCE.
ALLOW EXISTING INDIAN HAWTHORN
TO GROW TO MINIMUM 3' HEIGHT TO
SCREEN ABOVE-GROUND UTILITY
ALLOW EXISTING INDIAN HAWTHORN
TO GROW TO MINIMUM 3' HEIGHT TO
SCREEN ABOVE-GROUND UTILITY
MAINTAIN EXISTING INDIAN
HAWTHORN AT 48" HT. TO SCREEN
ABOVE-GROUND UTILITY
I AM FAMILIAR WITH THE REQUIREMENTS FOR LANDSCAPE AND IRRIGATION PLANS
CONTAINED IN THE CITY OF CARLSBAD'S LANDSCAPE MANUAL AND WATER EFFICIENT
LANDSCAPE REGULATIONS. I HAVE PREPARED THIS PLAN IN COMPLIANCE WITH
THOSE REGULATIONS AND THE LANDSCAPE MANUAL. I CERTIFY THAT THE PLAN
IMPLEMENTS THOSE REGULATIONS TO PROVIDE EFFICIENT USE OF WATER
SIGNED DATED
5/30/24
PROXIMITY OF EXISTING BOLLARDS
TO BACK OF CURB DOES NOT ALLOW
FOR ADEQUATE LANDSCAPE BED
SPACE FOR NEW PLANTS
MULCH ONLY AROUND NEW
EQUIPMENT
WORK AREA
EXISTING 2" WATER METER
(RECYCLED WATER) AND BACKFLOW
DEVICE
ADDRESS: 6128 PASEO DEL NORTE
LANDSCAPE CONTRACTOR TO REMODEL
EXISTING IRRIGATION SYSTEM AS NECESSARY SO
THAT SUPPLEMENTAL WATER IS PROVIDED TO
ALL NEW PLANT MATERIAL. MAINTAIN WATERING
SCHEDULE OF EXISTING IRRIGATION DURING
CONSTRUCTION OF NEW WORK ASSOCIATED
WITH THIS PLAN SET. FOR NEW IRRIGATION,
UTILIZE SAME IRRIGATION MANUFACTURER AS IS
CURRENTLY INSTALLED, IF POSSIBLE. IF NOT
AVAILABLE, USE SIMILAR QUALITY EQUIPMENT.
ALL WATER-EMITTING IRRIGATION EQUIPMENT TO
BE SUB-SURFACE; NO ABOVE-GROUND BUBBLERS
OR EMITTERS
CUP 90-O3E, SPD90-05(I), CDP 97-05(B)
4 EXISTING IRRIGATION CONTROLLERS
LOCATED INSIDE 2 STAINLESS STEEL
ENCLOSURES
'A': ISC-12-B CONTROLLER, 12-STATION,
'B': ISC-32-B CONTROLLER, 24-STATION,
'C': ISC-24-B CONTROLLER, 24-STATION,
'D': ISC-24-B CONTROLLER, 24-STATION
RAIN SENSOR: W.C.S. 'RAIN-GUARD' SHUT-OFF
AND RAINBIRD 'AQUA-MISER' MOISTURE
SENSOR
HYDROZONE BOUNDARY. IT IS
ESTIMATED THAT ONE IRRIGATION
VALVE SERVES THIS ENTIRE BED.
NOTE: THE FUEL FACILITY WAS
ADDED TO THE SITE AFTER THE
'PRICE CLUB' STORE BECAME A
COSTCO. REVISIONS TO THE
EXISTING IRRIGATION SYSTEM HAVE
BEEN MADE OVER TIME
HYDROZONE BOUNDARY
HYDROZONE BOUNDARY
HYDROZONE BOUNDARY
PLANNING COMMISSIN EXHIBIT 11/24/2025
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Dec. 17, 2025 Item #1 169 of 174
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Dec. 17, 2025 Item #1 170 of 174
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5
Dec. 17, 2025 Item #1 171 of 174
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CUP 90-O3E, SPD90-05(I), CDP 97-05(B)
PLANNING COMMISSIN EXHIBIT 11/24/2025
6
Dec. 17, 2025 Item #1 172 of 174
C DBA
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PROPOSED BARRIER CURB TO
BORDER ALL NEW LANDSCAPE BEDS,
TYPICAL. SEE CIVIL SET FOR DETAIL
MAINTAIN EXISTING BARRIER CURB
ADJACENT TO ALL EXISTING
LANDSCAPE BEDS
PROPOSED BARRIER CURB TO
BORDER ALL NEW LANDSCAPE BEDS,
TYPICAL. SEE CIVIL SET FOR DETAIL
MAINTAIN EXISTING BARRIER CURB
ADJACENT TO ALL EXISTING
LANDSCAPING
6'
27'
15'
331 SQ FT OF NEW LANDSCAPE BED
CREATED
128 SQ FT OF NEW LANDSCAPE BED
CREATED
27 SQ FT OF NEW LANDSCAPE BED
CREATED
ALLOW EXISTING INDIAN HAWTHORN
TO GROW TO MINIMUM 3' HEIGHT TO
SCREEN ABOVE-GROUND UTILITY
ALLOW EXISTING INDIAN HAWTHORN
TO GROW TO MINIMUM 3' HEIGHT TO
SCREEN ABOVE-GROUND UTILITY
MAINTAIN EXISTING INDIAN
HAWTHORN AT 48" HT. TO SCREEN
ABOVE-GROUND UTILITY
PROXIMITY OF EXISTING BOLLARDS
TO BACK OF CURB DOES NOT ALLOW
FOR ADEQUATE LANDSCAPE BED
SPACE FOR NEW PLANTS
MULCH ONLY AROUND NEW
EQUIPMENT
WORK AREA
EXISTING 2" WATER METER
(RECYCLED WATER) AND BACKFLOW
DEVICE
ADDRESS: 6128 PASEO DEL NORTE
LANDSCAPE CONTRACTOR TO REMODEL
EXISTING IRRIGATION SYSTEM AS NECESSARY SO
THAT SUPPLEMENTAL WATER IS PROVIDED TO
ALL NEW PLANT MATERIAL. MAINTAIN WATERING
SCHEDULE OF EXISTING IRRIGATION DURING
CONSTRUCTION OF NEW WORK ASSOCIATED
WITH THIS PLAN SET. FOR NEW IRRIGATION,
UTILIZE SAME IRRIGATION MANUFACTURER AS IS
CURRENTLY INSTALLED, IF POSSIBLE. IF NOT
AVAILABLE, USE SIMILAR QUALITY EQUIPMENT.
ALL WATER-EMITTING IRRIGATION EQUIPMENT TO
BE SUB-SURFACE; NO ABOVE-GROUND BUBBLERS
OR EMITTERS
CUP 90-O3E, SPD90-05(I), CDP 97-05(B)IR
R
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4 EXISTING IRRIGATION CONTROLLERS
LOCATED INSIDE 2 STAINLESS STEEL
ENCLOSURES
'A': ISC-12-B CONTROLLER, 12-STATION,
'B': ISC-32-B CONTROLLER, 24-STATION,
'C': ISC-24-B CONTROLLER, 24-STATION,
'D': ISC-24-B CONTROLLER, 24-STATION
RAIN SENSOR: W.C.S. 'RAIN-GUARD' SHUT-OFF
AND RAINBIRD 'AQUA-MISER' MOISTURE
SENSOR
ALL LANDSCAPE AREAS SHALL HAVE POSITIVE DRAINAGE (2% GRADE IN PLANTING AREAS) AWAY FROM ALL
STRUCTURES AND TERMINATING IN AN APPROVED DRAINAGE SYSTEM.
ALL ABOVE-GROUND UTILITIES ARE TO BE SCREENED.
EXISTING AREAS OF LANDSCAPE TO REMAIN SHOULD BE FILLED IN WITH MATCHING PLANT MATERIAL. ALL
BEDS SHOULD BE PLANTED OUT PER THE ORIGINAL PLANS UNLESS REDESIGNED ON THESE PLANS.
LANDSCAPE CONTRACTOR TO ADD ADDITIONAL SHRUBS TO AREAS WITHIN THE WORK LIMITS THAT HAVE
EMPTY AREAS.
ANY EXISTING LANDSCAPE ELEMENTS DAMAGED DURING CONSTRUCTION SHALL BE REPLACED IN KIND.
ONLY SUBSURFACE IRRIGATION SHALL BE USED TO IRRIGATE ANY VEGETATION WITHIN TWENTY-FOUR INCHES
OF AN IMPERMEABLE SURFACE UNLESS THE ADJACENT IMPERMEABLE SURFACES ARE DESIGNED AND
CONSTRUCTED TO CAUSE WATER TO DRAIN ENTIRELY INTO A LANDSCAPED AREA.
AT THE TIME OF FINAL INSPECTION, THE PERMIT APPLICANT MUST PROVIDE THE OWNER OF THE PROPERTY
WITH A CERTIFICATE OF COMPLETION, CERTIFICATE OF INSTALLATION, IRRIGATION SCHEDULE AND A
SCHEDULE OF LANDSCAPE AND IRRIGATION MAINTENANCE.
HYDROZONE BOUNDARY. IT IS
ESTIMATED THAT ONE IRRIGATION
VALVE SERVES THIS ENTIRE BED.
NOTE: THE FUEL FACILITY WAS
ADDED TO THE SITE AFTER THE
'PRICE CLUB' STORE BECAME A
COSTCO. REVISIONS TO THE
EXISTING IRRIGATION SYSTEM HAVE
BEEN MADE OVER TIME
HYDROZONE BOUNDARY
HYDROZONE BOUNDARY
HYDROZONE BOUNDARY
PROPOSED AND EXISTING
LANDSCAPE AREAS SERVED BY
RECYCLED WATER IRRIGATION
NO LANDSCAPE
WORK PROPOSED
NOT A PART NOT A PART
PLANNING COMMISSIN EXHIBIT 11/24/2025
7
Dec. 17, 2025 Item #1 173 of 174
LIST OF ACRONYMS AND ABBREVIATIONS Exhibit 9
This is a list of acronyms and abbreviations (in alphabetical order) that are commonly used in staff
reports.
Acronym Description Acronym Description
APA American Planning Association LCPA Local Coastal Program Amendment
APN Assessor Parcel Number LOS Level of Service
AQMD Air Quality Management District MND Mitigated Negative Declaration
BMP Best Management Practice NCTD North County Transit District
CALTRANS California Department of Transportation ND Negative Declaration
CC City Council PC Planning Commission
CCR Conditions, Covenants and Restrictions PDP Planned Development Permit
CEQA California Environmental Quality Act PEIR Program Environmental Impact Report
CFD Community Facilities District PUD Planned Unit Development
CIP Capital Improvement Program ROW Right of Way
COA Conditions of Approval RWQCB Regional Water Quality Control Board
CofO Certificate of Occupancy SANDAG San Diego Association of Governments
CT Tentative Parcel Map SDP Site Development Permit
CUP Conditional Use Permit SP Specific Plan
DIF Development Impact Fee SWPPP Storm Water Pollution Prevention Program
DISTRICT City Council Member District Number TM Tentative Map
EIR Environmental Impact Report ZC Zone Change
EIS Environmental Impact Statement (federal)
EPA Environmental Protection Agency
FEMA Federal Emergency Management Agency
GP General Plan
GPA General Plan Amendment
GIS Geographic Information Systems
HCA Housing Crisis Act 2019
IS Initial Study
Dec. 17, 2025 Item #1 174 of 174
Mike Strong, Asst. Director of Community Development
Community Development Department
Dec. 17, 2025
Costco Fuel Expansion Project
Amend 2022-0020 / Amend 2022-0021 / Amend 2022-0022
Costco Fuel Expansion Project
•Amendments to CUP/SDP/CDP to allow the following:
-4 new gas fueling tanks
-1 new underground storage tanks
-canopy expansion
-other site improvements
•Amends CUP 90-03(E), SDP90-05(L), and CDP97-05(B)
Details of the Request
Costco Fuel Expansion Project
•Palomar Airport Rd.
•14.8-acre
•C-2-Q Zone
•R Land Use Designation
•Mello II Segment
Project Location
Costco Fuel Expansion Project
•Located on eastern portion of
property
•Near main Costco entrance
Project Location
Costco Fuel Expansion Project
Costco Fuel Expansion Project
Costco Fuel Expansion Project
Costco Fuel Expansion Project
•11 pumps
•5,874 SF canopy
Existing Project
Costco Fuel Expansion Project
•15 pumps
•9,553 SF canopy
Proposed Project
Costco Fuel Expansion Project
•15 pumps
•9,553 SF canopy
Proposed Project
Costco Fuel Expansion Project
•The Costco site has been reviewed by the Planning
Commission/City Council at different times throughout
the years (Exhibit 3).
•The Costco Wholesale project was first approved in 1991
and completed in October 1992.
•3 pumps approved in Oct. 1997.
•Amended in Sept. 2000 and July 2014, to add additional
pump islands and fuel dispensers.
Project Background
Project Consistency
General Plan (R)
Zoning Ordinance (C-2-Q)
Commercial Visitor Serving Overlay Zone
LFMZ 5
Mello II Segment of the LCP
California Environmental Quality Act (CEQA)
Costco Fuel Expansion Project
Costco Fuel Expansion Project
Categorically exempt from CEQA §15301 – Existing
Facilities
CEQA Exemption Determination
ITEM: RECOMMENDATION
•ADOPT a resolution APPROVING the Amendments
to the Conditional Use Permit, Site Development
Permit, and Coastal Development Permit (AMEND
2022-0020, AMEND 2022-0021, 2022-0022).
Mike Strong, Asst. Director of Community Development
Community Development Department
Dec. 17, 2025
Costco Fuel Expansion Project
Amend 2022-0020 / Amend 2022-0021 / Amend 2022-0022
Costco Fuel Facility Expansion
951 Palomar Airport Road
CONDITIONAL USE, SITE PLAN DEVELOPMENT, AND COASTAL DEVELOPMENT PERMIT AMENDMENTS
December 17, 2025
Presented to the City of Carlsbad
Planning Commission
Aerial View – Overall Site
Project Location:
•Costco Warehouse
951 Palomar Airport
Road
•Existing facility at
NE corner of site.
•Expanded facility will
be within the same
general footprint COSTCO
WAREHOUSE
PROJECT
SITE
Overall Site Plan
Parking
•The existing fuel facility
parking stalls will be
modified slightly to
accommodate expansion
•Spaces provided after fuel
facility expansion - 745
•Spaces required – 634
•No net change in parking
Aerial View – Project Area
Existing:
•4 islands
•11 multi-product dispensers
•22 fueling positions
•5,874-square-foot canopy
Intent of new facility:
•New state of the art facility
•Improve fuel facility
operations
•Increased capacity
•Reduced queues
•Shortened wait times
•Improved site
circulation
•More efficient fuel-
purchasing experience
Fuel Facility Site Plan
Expanded Facility:
•4 islands
•15 MPDs (+4)
•30 fueling positions (+8)
•9,893 square-foot canopy
•One (1) new 40,000-gallon
UST
Intent:
•Greater, more efficient
queuing capacity
•More spacing between
dispensers
•Improved fuel facility
operations
•Reduced queues
•Shortened wait times
•More efficient fuel-
purchasing experience
Offsite Improvements
Improvements:
•400-foot extension of the left
turn in lane
•Installation of 2 Bus Benches
•Palomar Airport Rd –
eastbound (Carl’s Jr)
•Palomar Airport Rd –
westbound (NE Corner
Amanda Dr.)
B
e
n
c
h
1
Bus Bench #2
Palomar Airport
Road Westbound
Bus Bench #1
Palomar Airport
Road Eastbound
Left Turn Lane
Extension (400 feet)
CONCLUSION
The project will:
•Improve service for Costco members in the City of
Carlsbad, including local businesses and
individuals.
•Increase the availability of Costco fuel regionally
and help relieve traffic at its existing locations.
•Provide good jobs and support the City’s tax base.
7
THANK YOU
PROJECT
SITE
Traffic Study Findings
Queue Length (No of vehicles Avg/Peak):
•Existing Weekday PM Peak Hour: 39 / 49
•Saturday Midday Peak Hour: 34 / 42
After Expansion
•Weekday PM Peak Hour: 33 / 41
•Saturday Midday Peak Hour: 23 / 28
Source: Technical Memorandum by Kittelson Associates, August 14, 2025
Expanded Facility:
•4 islands
•15 MPDs (+4)
•30 fueling positions (+8)
•9,893 square-foot canopy
•Circulation modifications
Intent:
•Greater, more efficient
queuing capacity
•More spacing between
dispensers
•Improved fuel facility
operations
•Reduced queues
•Shortened wait times
•More efficient fuel-
purchasing experience
Traffic Study Findings
Projected Maximum Queue (Midday Saturday, 95th percentile)
Queue Management Plan
Queue Management Plan (QMP)
•QMP implemented as
needed, typically, near
holiday weekends and
unusual market
conditions
•Actively manage the
queue space
•Tiered approach
depending on demand
•Tier 3 involves the
access modification with
signage, cones and up to
three employees
Grading Plan
Elevations
Landscape Plan
Photometric Plan