HomeMy WebLinkAbout2021-07-06; Traffic and Mobility Commission; ; Sustainable Mobility Plan Active Transportation Monitoring Program Data Collection PlanItem 5
Meeting Date: July 6, 2021
To: Traffic and Mobility Commission
Staff Contact: Nathan Schmidt, Transportation Planning and Mobility Manager
Nathan.Schmidt@carlsbadca.gov, 760-602-2734
Subject: Sustainable Mobility Plan Active Transportation Monitoring Program Data Collection Plan
Recommended Action
Receive a presentation and provide input to city staff on the Draft Data Collection Plan.
Background
On Jan. 21, 2021, Carlsbad City Council adopted a resolution adopting the Carlsbad Sustainable
Mobility Plan (SMP). The SMP presents a comprehensive look at current active travel and
access to transit conditions, as well as previous planning efforts to consolidate findings and
recommendations into a single master plan document. The SMP was created to help improve
transportation-related safety, reduce greenhouse emissions, increase travel choices and
implement the goals and policies of the Mobility Element of the city’s General Plan.
One of the programmatic recommendations of the SMP was to develop an Active
Transportation Monitoring Program that would allow city staff, elected officials, and
community members to track changes in travel behavior over time and especially in relation to
the implementation of active travel and transit infrastructure projects. The active travel
monitoring framework is intended to establish a data collection and analysis program that will
enable tracking progress toward key goals related to VMT reduction, active travel and transit
ridership encouragement, and by extension, Greenhouse Gas (GHG) generated through
automobile travel. The data collected as part of the active transportation monitoring program
will also enhance the success of grant applications by giving city staff the necessary information
to estimate potential active travel and VMT reduction related to the implementation of future
active transportation projects.
Discussion
The purpose of this item is to provide an opportunity for the Traffic and Mobility Commission to
review and deliver feedback on the proposed active transportation count locations and siting
criteria as part of the active transportation monitoring program.
Multimodal Traffic Counts
The proposed data collection program will be driven by multimodal traffic counts which shall
include counts of all travel modes including pedestrians, bicyclists, passenger vehicles, and
heavy vehicles at roadway segments or intersections. The multimodal counts will be conducted
in 12-hr increments from 7am to 7 pm and include both a typical weekday (Monday, Tuesday,
or Thursday) while school is in session and a Saturday. Due to the higher costs and complexity
of intersection counts most of count locations will include segment counts in order to preserve
available budget.
In addition to the short duration counts, continuous bicycle and pedestrian counts will be
collected with two permanent counts which will be conducted at up to two locations on
Carlsbad Boulevard. This will likely include one location near the northern city border with
Oceanside and one location at the southern border with the city of Encinitas. Staff will work
with the traffic signal division to determine the specific locations of these permanent counters
due to the necessary utility connections that are required to support the counter technology.
The continuous counters will be useful to understand daily and seasonal variations and to
develop factors for extrapolating short duration counts to average daily counts.
The specific count locations were determined based on the preliminary set of locations
identified in the Sustainable Mobility Plan. As part of the project planning process these
locations were then refined using siting criteria that considered elements such as presence of
transit, availability of historic count data, infrastructure type, mobility element classification,
and socio-economic strata. The details of the count siting criteria are provided in the attached
Exhibit 2.
Exhibit 3 provides a map and list of the multimodal count locations. As shown, there are a total
of twenty-eight count sites, with all sites located along roadways or multi-use path segments,
except 3 count sites which are located at intersections.
Other Active Transportation Performance Measures
SANDAG Travel Survey Data: In addition to multimodal traffic data, the active transportation
monitoring program will include travel survey data obtained from both the 2016 and 2019
SANDAG travel surveys. The analysis of the travel survey data will summarize key travel
characteristics such as mode share, average VMT, and trip purpose.
Transit Ridership: Transit ridership data will be obtained from the North County Transit District
(NCTD) ridership database for all data collection locations positioned along transit routes. This
data will be necessary to combine with the multimodal traffic data in order to calculate study
corridor level travel mode split.
All Mode Collisions: City collision data will be collected and documented across the city and
reported as part of the annual monitoring report. The city is currently developing a Local
Roadway Safety Plan (LRSP) which will form the basis of this data.
Active Transportation Infrastructure: The annual miles of infrastructure constructed by mode
and annual infrastructure expenditures by mode will also be collected and reports on an annual
basis as part of the connectivity performance metric of the active transportation monitoring
program.
Next Steps
Staff will work with the consultant and a data collection vendor to conduct the data collection
program throughout the month of September 2021. Staff will return to the Traffic and Mobility
Commission in late 2021 with a report summarizing the results of the active transportation data
collection program for FY 2021-22. It is anticipated that the report will then be updated on an
annual basis with counts reoccurring in September of each year.
Exhibits
1. Excerpt from the Sustainable Mobility Plan
2. Technical Memorandum: Preliminary Count Locations and Siting Criteria (Chen Ryan
Associations, June 23, 2021)
3. Online map of proposed count locations and supporting GIS data: < CLICK HERE FOR LINK >
138
CARLSBAD SUSTAINABLE MOBILITY PLAN - DRAFT PROPOSED MOBILITY NETWORKS
SMP ACTIVE
TRANSPORTATION
MONITORING PROGRAM
The SMP Active Transportation Monitoring
Program allows city staff, elected official,
and community members to track changes
in travel behavior over time and especially in
relation to the implementation of active travel
and transit infrastructure projects. The active
travel monitoring framework establishes a
data collection and analysis program that
will enable tracking progress toward key
goals related to VMT reduction, active
travel and transit ridership encouragement,
and by extension, GHG generated through
automobile travel. The data will also enhance
the success of grant applications by giving city
staff the necessary information to estimate
potential active travel and VMT reduction
related to the implementation of future active
transportation projects.
Performance Measures
Several performance measures are proposed
for tracking over time in the City of Carlsbad,
either yearly or every other year. The
performance measures represent several
important transportation system and travel
behavior categories including demand, ,
safety, and connectivity.
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FIGURE 6-7 BICYCLE AND PEDESTRIAN COUNT LOCATIONS
Exhibit 1
139
CARLSBAD SUSTAINABLE MOBILITY PLAN - DRAFTPROPOSED MOBILITY NETWORKS
Category Data Type Recommended Data Collection Methods Cost Range
Demand
Multimodal Traffic Volumes
Counts
• Average daily bicycle, pedestrian and vehicle
counts along roadway segments
•$450/count site
•$9,000 for 20 sites
•Staff hours for coordination
• Continuous Bicycle and Pedestrian Counts •$4,500/unit per site $500/unit per year for
battery and modem subscription
•Staff hours for coordination
Commute Mode Share • Economic Development Department to develop
and administer a commute focused travel survey
•Staff hours
Transit Ridership by Stop • SANDAG, MTS and NCTD •20-30 hours staff time for obtaining data and
analyzing
Safety
Bicycle and Pedestrian
Collisions
• State of CA SWITRS, Crossroads •20-40 hours staff time for obtaining data and
conducting analysis
Bicycle and Pedestrian
Collisions within 500 feet of
Transit Stops
• City of Carlsbad, Crossroads •20-40 hours staff time for obtaining data and
conducting analysis
Connectivity
Miles of Bicycle and
Pedestrian Infrastructure
Improvements
• State of CA SWITRS, Crossroads •20-40 hours staff time for obtaining data and
conducting analysis
Annual Funds Spent by Travel
Mode
• City of Carlsbad •20-40 hours staff time for obtaining data and
conducting analysis
Table 6-1 Data Types, Methods, and Costs by Category
Source: Chen Ryan Associates, 2020
Table 6-1 summarizes recommended
data types, data collection methods, and
preliminary cost estimates for the overall
Carlsbad Active Transportation Monitoring
Program.
Figure 6-7 displays the recommended bicycle
and pedestrian count locations where repeat
counting should occur every year or every
other year, depending on funding. There are
12 proposed average daily count locations
along roadway segments. The figure also
shows 6 proposed locations for automated
counting where equipment should be
installed to collect continuous bicycle and
pedestrian count data.
P a g e | 1
TO: Nathan Schmidt, City of Carlsbad
FROM: Sherry Ryan, CR Associates
DATE: 6-23-21
RE: Preliminary Count Locations and Siting Criteria
This memorandum presents preliminary active transportation count locations and siting criteria
as part of the Carlsbad Active Transportation Monitoring Task Order. This memorandum is
intended to support review and discussion with the Transportation and Mobility Commission
(TMC) with the goal of using their input to finalize the count locations. A more complete Data
Collection Memorandum will be prepared after input from the TMC is received.
Criteria for Siting Count Locations
It is important to identify a set of count locations that is representative of the City of Carlsbad’s
broader mobility network and also reflective of facility characteristics that may influence cycling,
walking and transit usage. Table 1 shows preliminary siting criteria used to propose and evaluate
a preliminary set of count locations.
Table 1: Preliminary Count Location Siting Criteria
Siting Criteria Justification/Goal Categories
Presence of Transit Allows for collection of multimodal
counts Yes/No
Presence of Historic
Vehicle Counts
Allows for collection of multimodal
counts and trend analysis Yes/No
Level of Traffic Stress Variety of cycling environments and
roadway characteristics
LTS 1 or 2
LTS 3 or 4
Existing Bike Facility Variety of facility types Class I, II, III, IV
Proposed Bike Facility Examine effect of facility change over
time Class I, II, IIA, III, IIIA, IV
Existing Trails/Ped Facility Variety of facility types Types 1 – 6
Proposed Trail/Ped
Facility
Examine effect of facility change over
time Types 1 – 6
Socio-economic Strata Representative of Carlsbad residents’
socioeconomic characteristics
Population + Employment Density and Median
HH Income
Mobility Element
Classification
Variety of existing and planned
roadways
School Street, Avenue, Business, Industrial,
Coastal, Secondary Arterial, Arterial Connector,
Major Arterial, Prime Arterial, Freeway
Exhibit 2
P a g e | 2
Appendix A describes the calculation of socio-economic strata in more detail.
Preliminary Count Locations
The Carlsbad Sustainable Mobility Plan (SMP) presents a preliminary set of active transportation
count locations for ongoing monitoring and evaluation. For this Task Order, these preliminary
count locations were used as a starting point. Figure 1 displays a set of preliminary count
locations, with some minor modifications from the version presented in the Carlsbad SMP.
Table 2 provides a description of these sites by roadway segment. As shown, there are a total of
twenty-eight count sites, with all sites located along roadway or multi-use path segments, except
3 count sites which are located at intersections.
Evaluating Count Locations by Siting Criteria
Table 3 displays the preliminary count locations along with a summary of their siting criteria
characteristics (as presented in Table 1).
Charts 1 through 9 show frequency distributions for each siting criteria across the proposed
count locations. The frequency distributions allow for an easier interpretation of the siting
criteria across the preliminary set of count locations.
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Figure 1 Preliminary Count LocationsCarlsbad Active Transportation Monitoring
June 23, 2021
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P a g e | 4
Table 2: Preliminary Count Locations by Roadway Segment
ID Segment From To
1 Carlsbad Village Dr Carlsbad Blvd Harding St
2 Carlsbad Village Dr Pio Pico Dr Monroe St
3 Carlsbad Blvd Carlsbad Village Dr Tamarack Ave
4 Coastal Rail Trail Oak Ave Tamarack Ave
5 Tamarack Ave Pio Pico Dr Valley St
6 El Camino Real Chestnut Ave Tamarack Ave
7 College Blvd Carlsbad Village Dr Cannon Rd
8 Cannon Rd El Camino Real College Blvd
9 Cannon Rd Paseo Del Norte Faraday Ave
10 Avenida Encinas Cannon Rd Palomar Airport Rd
11 Carlsbad Blvd Cannon Rd Palomar Airport Rd
12 Palomar Airport Rd Carlsbad Blvd Avenida Encinas
13 Palomar Airport Rd Paseo Del Norte Aviara Pkwy
14 College Blvd Faraday Ave Palomar Airport Rd
15 El Camino Real Faraday Ave Palomar Airport Rd
16 Poinsettia Ln Carlsbad Blvd Avenida Encinas
17 Poinsettia Ln Batiquitos Dr Aviara Pkwy
18 Calle Barcelona El Camino Real Rancho Santa Fe Rd
19 Alga Rd El Camino Real El Fuerte St
20 Poinsettia Ln El Camino Real El Fuerte St
21 Carlsbad Blvd & Avenida Encinas 22 La Costa Ave I-5 El Camino Real
23 El Camino Real La Costa Ave Calle Barcelona
24 La Costa Ave El Camino Real Rancho Santa Fe Rd
25 Rancho Santa Fe Rd San Elijo Rd Camino Junipero
26 Rancho Santa Fe Rd & La Costa Ave 27 Kelly Dr El Camino Real Hillside Dr
28 College & Tamarack
P a g e | 5
Table 3: Preliminary Count Locations by Siting Criteria
Count
Location ID
Presence
of Transit
Historic
Vehicle Count LTS Existing
Bike Facility
Planned
Bike Facility
Existing
Trail/Ped Facility
Planned
Trail/Ped Facility Strata Mobility Element
Classification
1 No No 2 II III 5 -- H-L Major Arterial
2 Yes Yes 4 II IIA 5 -- H-L Arterial Connector
3 Yes No 2 II IIA 5-6 -- H-L Major Arterials
4 Yes No 2 I -- 6 -- -- Multi-Use Path
5 Yes No 2 II IIA 5 -- M-L Secondary Arterial
6 Yes Yes 4 II IIA 5 -- M-L Prime Arterial
7 No Yes 4 II I 4-5 -- L-M Prime Arterial
8 No Yes 4 II IIA 4-5 -- L-L Prime Arterial
9 Yes Yes 4 II IIA 5 -- M-M Prime Arterial
10 No No 4 II IIA 5 -- L-M Secondary Arterial
11 Yes No 3 II IIA -- 5-6 L-M Coastal
12 No No 4 III IIA 5 -- L-M Prime Arterial
13 Yes Yes 4 II IIA 5 -- H-H Prime Arterial
14 Yes Yes 4 II IIA 5 -- M-M Prime Arterial
15 Yes Yes 4 II IIA 5 -- M-M Prime Arterial
16 Yes No 3 II IIA 5 -- L-M Business
17 No No 4 II IIA 5 -- H-H Business
18 No No 2 I/II -- 5-6 -- M-H Secondary Arterial
19 No Yes 4 II IIA 5 -- M-M Arterial Connector
20 No Yes 4 II IIA 4-5 -- L-H Arterial Connector
21 Yes No 4 II IV -- 5-6 L-M Coastal
22 No Yes 4 II I/IIA 5 -- L-M Prime Arterial
23 Yes Yes 4 II IIA 5 -- M-H Prime Arterial
24 No No 4 II IIA 5 -- M-M Secondary Arterial
25 Yes Yes 4 II IIA 5 -- L-H Prime Arterial
26 Yes Yes 4 II IIA 5 -- M-H Secondary Arterial
27 No No 2 II IV 5 -- L-M School
28 No No 1 II IIA 5 -- L-M School
P a g e | 6
Chart 1
Chart 2
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4
6
8
10
12
14
16
Yes NoNumber of LocationsPresence of Transit
Presence of Transit
0
2
4
6
8
10
12
14
16
Yes NoNumber of LocationsHistoric Vehicle Count
Historic Vehicle Count
P a g e | 7
Chart 3
Chart 4
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6
8
10
12
14
16
18
20
1 2 4 3 N/ANumber of LocationsLTS
LTS
0
5
10
15
20
25
30
I II III I/IINumber of LocationsExisting Bike Facility Class
Existing Bike Facility
I - -
- - -
P a g e | 8
Chart 5
Chart 6
0
5
10
15
20
25
I IIA I/IIA III IV N/ANumber of LocationsPlanned Bike Facility Class
Planned Bike Facility
0
5
10
15
20
25
4-5 5 5-6 6 N/ANumber of LocationsExisting Trail/Ped Facility
Existing Trail/Ped Facility
C R
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P a g e | 9
Chart 7
Chart 8
0
5
10
15
20
25
30
5-6 N/ANumber of LocationsTrail/Ped Facility Change
Proposed Trail/Ped Facility
0
1
2
3
4
5
6
7
8
9
10
HH HM HL MH MM ML LH LM LLNumber of LocationsStrata (Pop + Emp - HH Inc)
Strata
I I I I I I
P a g e | 10
Chart 9
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6
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10
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Number of LocationsMobility Element Classification
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P a g e | 11
Appendix A: Calculating Strata by Roadway Segment
Each of the mobility element roadways across the City of Carlsbad were assigned to sampling
strata developed from population and employment density and median household income. A
key purpose of this study is to collect travel demand data for the City of Carlsbad that is
representative of citywide trends. One way to achieve this representativeness is to ensure that
key factors affecting the demand for travel are represented across our count locations. Density
and income have been shown in the literature to influence the frequency of trip-making and
mode choice. Therefore, in this study, we would like to site our data collection locations in a
manner that generally represents the distribution of density and income across the entire City of
Carlsbad.
We obtained population, employment and median household income data from the Census
Bureau’s American Community Survey for the year 2015 – 2019, aggregated to census block
groups. We created 500-foot buffers around all mobility element roadways and calculated the
population, employment, and income values within the buffers by apportioning the census data
to the buffer areas.
We categorized the two input variables (population + employment and income) into high,
medium, and low classes to create sampling strata. The two input variables classified into three
categories results in 9 sampling strata as show below in Table A1.
Table A1: Defining Nine Sampling Strata
(Pop +Emp)/Acres
High Medium Low Income High H-H M-H L-H
Medium H-M M-M L-M
Low H-L M-L L-L
The category breaks for defining high, medium and low for each of the two input variable are
shown below.
Population + Employment per Acre
High: 9.80 – 16.88
Medium: 6.95 – 9.79
Low: 1.39 – 6.94
Median HH Income
High: $133,643 - $214,098
Medium: $101,418 - $133,642
Low: $62,002 - $101,417
P a g e | 12
Chart A1 shows the distribution frequency for all roadway segments for which the sampling
strata were calculated while Chart A2 presents the frequency distribution of strata for the
proposed count sites.
Chart A1
Chart A2
0
5
10
15
20
25
30
35
40
45
HH HM HL MH MM ML LH LM LLNumber of LocationsStrata (Pop + Emp - HH Inc)
Strata: All Streets
0
1
2
3
4
5
6
7
8
9
10
HH HM HL MH MM ML LH LM LLNumber of LocationsStrata (Pop + Emp - HH Inc)
Strata
■ I I I I I ■
I I I I I I