HomeMy WebLinkAbout2007-11-05; Traffic Safety Commission; ; Review and provide a recommended priority ranking of two candidate streets in accordance with Phase II of the Carlsbad Residential Traffic Management Program (CRTMP)CITY OF CARLSBAD
TRAFFIC SAFETY COMMISSION
STAFF REPORT
COMMISSION MEETING OF: November 5, 2007
LOCATION: Donna Drive and Sierra Morena Avenue
INITIATED BY: City Traffic Engineer
ITEMNO. 6A
REQUESTED ACTION: Review and provide a recommended priority ranking of two candidate
streets in accordance with Phase II of the Carlsbad Residential Traffic
Management Program (CRTMP).
BACKGROUND:
The Carlsbad Residential Traffic Management Program includes a process for residents to
follow when concerns are expressed about speeding vehicles or cut-through traffic on
residential streets. The CRTMP is a three-phase process that has a systematic methodology to
follow in each phase. Involvement by the residents is a key component designed into the
program.
DATA:
Citizens are concerned with traffic issues on Donna Drive and Sierra Morena Avenue
(see Exhibits 1 and 2, respectively). Consequently, staff has been working closely with the
residents and both residential streets are currently in Phase II of the CRTMP process
(see Exhibit 3).
Phase I traffic calming measures outlined in the program did not adequately address citizen
concerns. Therefore, both streets moved into Phase II, and per Step 5, residents of each street
circulated Neighborhood Support Petitions. Both streets met minimum petition threshold
criteria and thus, became candidate streets in the priority ranking and scoring process (Step 6).
Phase II -Step 6 Project Priority Ranking and Scoring Process, requires that all candidate
streets be evaluated and assigned points based upon established criteria for the purpose of
establishing a project score for comparison with other streets. All streets that are evaluated
and assigned a score using the Priority Scoring Worksheet will be included on the priority list.
The streets with the most points will be considered the highest ranked projects and eligible for
future funding that would be approved by the Carlsbad City Council.
Phase II -Step 7 Annual Review by the Traffic Safety Commission (TSC) requires that the
TSC review the City Traffic Engineer's list of all candidate streets having a priority ranking
that was established on the basis of the Priority Scoring Worksheet. Upon review of the
City Traffic Engineer's recommended priority list, and after considering all public input, the
TSC will recommend a priority listing of candidate streets that will be forwarded to the
City Council for their concurrence and final approval.
( (
CITY OF CARLSBAD
TRAFFIC SAFETY COMMISSION
STAFF REPORT
COMMISSION MEETING OF: November 5, 2007
( continued)
ITEMNO. 6A
To determine the point total for each street, staff completed a Priority Scoring Worksheet for
both Donna Drive (see Exhibit 4) and Sierra Morena Avenue (see Exhibit 5). The Priority
Scoring Worksheet, contained in the CRTMP, is used to evaluate candidate streets and is
based upon set criteria, factors and associated points established in the CRTMP to establish a
project score for comparison with other streets.
Completing the Priority Scoring Worksheets resulted in Donna Drive having a total of
41 points and Sierra Morena A venue a total of 9 points. As indicated on the Priority Scoring
Worksheets, significant differences in the characteristics of each street resulted in the points
spread among both streets. Among the two candidate streets, the City Traffic Engineer's
recommendation is to establish a priority list with Donna Drive first and Sierra Morena
A venue second.
RECOMMENDATION:
The Traffic Safety Coordinating Committee recommends that the 2007 priority ranking be
established in the following order:
1. Donna Drive -Chestnut A venue to Carlsbad Village Drive
2. Sierra Morena Avenue-Milano Drive to Trieste Drive
NECESSARY CITY COUNCIL ACTION:
The recommended priority list will be forwarded to the City Council for discussion and
approval.
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LOCATION MAP
if>.l\'"'/{1·1
?
1-<-"-ci· \
CHARLEEN CIR.~
NOT TO SCALE _) -CHESTNUT A VE \ \ •
PROJECT NAME EXHIBIT DONNA DRIVE BETWEEN CARLSBAD VILLAGE DRIVE
AND CHESTNUT AVENUE 1
DRAM-I BY: SCOTT EVANS, CARLSBAD ENGINEERING DEPT. 10/12/07 C: \1RAffiC\MURRAY\DONNA DR/If: 1SCC EXHIBIT.DWG
LOCATION MAP
~ VALEWOOD AVE.
NOT TO SCALE
PROJECT NAME EXHIBIT
SIERRA MORENA A VENUE 2
DRAltN BY: SCOTT EVANS, CARLSBAD ENGINEERING DEPT. 1D/12/07 C:\TRAFFIC\MURRAY SIERRA MORENA AYE" TSCC EXHIBIT.DWG
CARLSBAD RESIDENTIAL TRAFFIC M.Jl. EMENT PROGRAM (
PHASE II (STUDY)
If Phase I options do not appear to adequately address the problem after being in place for an
appropriate amount of time as determined by the City Traffic Engineer, Phase II of the TMP may
be considered upon review and recommendation by the City Manager or his designee
consistent with current workloads. The decision to implement Phase II will be predicated upon
further consultation with the Police Department, other departments and affected residents.
Step 1 Written Request
Phase II will be initiated when the affected residents send a letter to the Engineering
Department requesting the step. The letter will be generated by the residents following
discussions with the City Traffic Engineer, study of Police Department results of Phase I, and
anticipation of what might be accomplished through further utilization of the TMP process.
Step 2 Eligibility Determination
To participate in Phase II and ultimately Phase Ill of the TMP, residents must reside on the
street or streets where the concerns exist. These streets must meet the minimum qualifying
criteria to be candidates for a future traffic calming project. Not all residential streets and/or
residential areas will qualify to participate in the Carlsbad Residential Traffic Management
Program based upon the established process. Eligibility criteria for a street are as follows:
1. Completion of Phase I of the TMP; and
2. Posted speed limit on candidate street(s) of 30 miles per hour or less; and
3. The 85th percentile speed (critical speed) is greater than 5 miles per hour over the posted
speed limit; or
Cut-through traffic on the candidate street is determined to be either greater than 30% of
the daily weekday total street volume or greater than 30% of the total weekday peak hour
traffic volume; and
4. The Fire Chief determines that the candidate street is not a primary emergency response
route and sends a memorandum to the City Traffic Engineer to confirm this finding; and
5. The street has no more than two lanes; and
6. Residences are located on at least one side of the street or there is a school or public
facility on the street; and
7. The curb-to-curb width on the candidate street is 40 feet or less.
Each of the seven eligibility criteria must be met for a street to be considered for further
processing through the TMP. However, on a case-by-case basis the City Traffic Engineer may
determine exceptions. A street being considered as an exception must be approved by the
Traffic Safety Commission.
tXHIBIT 3 -----------------------------------8
CARLSBAD RESIDENTIAL TRAFFIC MA~ '<'IENT PROGRAM ( ~------------____,.
Step 3 Streets Considered for Exception
Any street that does not meet the listed eligibility criteria but is nevertheless considered by the
City Traffic Engineer to be a candidate for traffic calming will be scheduled for review and
possible approval by the Traffic Safety Commission at the earliest possible opportunity. If the
Commission's review leads to the conclusion that the street merits an exception, it will be
processed through the TMP as it if met all qualifying criteria. Any street recommended by the
Traffic Safety Commission as not qualifying for an exception may be requested by a citizen to
be reviewed by the City Council for a final determination.
Step 4 Determine Project Area of Influence (PAOI)
The street or streets impacted by neighborhood concerns or potential solutions, including all
dwelling units or other land uses bordering the subject street or streets, comprise the Project
Area of Influence (PAOI). The PAOI is established by the City Traffic Engineer, with input from
the neighborhood representatives. It is determined by the length of street, including parallel
streets and their length, that would be influenced by any TMP installations. Residents of ·
dwelling units or property owners of vacant land within the boundaries of the PAOI represent the
voting interest of the TMP.
Step 5 Neighborhood Support Petition
The support petition is initiated by the neighborhood representative as the mechanism to
establish that residents support the City's consideration of a traffic calming project.
Documentation of support for consideration of a future project is indicated by a simple majority
(50% plus one signature) of those eligible individuals located within the PAOI that sign the
petition.
All residents of dwelling units and/or business owners and property owners of vacant land within
the PAOI are eligible to sign the support petition. However, only one signature per vacant
property, business or dwelling unit will be counted and permitted in the petition process since
those individuals influence, and are impacted by, street operations. All non-resident owners will
be notified of all public meetings so that they have the opportunity to express their opinions of
the project to the decision makers.
Step 6 Project Priority Ranking Criteria and Scoring Process
Candidate streets will be evaluated on the following factors and associated points for the
purpose of establishing a project score for comparison with other streets. All streets that have
been evaluated and assigned scores shall be included on the priority list. Streets with the most
points will be considered the highest ranked projects, eligible for future funding by the City of
Carlsbad.
Criteria and points assigned are as follows:
1. Travel Speed (maximum 40 points):
10 points for each mile per hour the 85th percentile speed is over the base speed. The base
speed is defined as the prima facie speed limit plus 7 miles per hour.
9
CARLSBAD RESIDENTIAL TRAFFIC MA( .. MENT PROGRAM
2. Traffic Volumes (maximum 30 points):
Typical weekday ADT divided by 100 and rounded to the nearest whole number or the
weekday peak hour volume divided by 10 and rounded to the nearest whole number.
3. Collision History (maximum 10 points):
The number of correctable collisions on a street, including intersections, within the past five
years. One point each will be assigned to a correctable collision. A correctable collision is
one that might have been prevented by the installation of a traffic control device or traffic
calming measure.
4. Sidewalks (maximum 5 points):
5 points if no sidewalk or pedestrian pathway exists along at least one side of the street.
O points if a sidewalk or pedestrian pathway is located on at least one side of the street.
5. School Proximity (5 points maximum):
5 points if school grounds abut the candidate street.
3 points if the PAOI is within 500 feet of school grounds.
1 point if the PAOI is located within 1,000 feet of school grounds.
6. Pedestrian Crossings (10 points maximum):
5 points if a school crosswalk (yellow crosswalk) is located on a street in the PAOI.
10 points if a major crosswalk is located on a street in the PAOI. A major crosswalk is
defined as having 10 or more pedestrians crossing per hour during any eight hours of a
typical weekday.
A maximum total of 100 points may be given for the street under conside~ation, using the Traffic
Management Program Priority Scoring Worksheet.
10
CARLSBAD RESIDENTIAL TRAFFIC MAJ ,MENT PROGRAM
Traffic Management Program
Priority Scoring Worksheet
This worksheet will be completed by City of Carlsbad staff. It will be used to assign points to a
street for prioritization of a potential specific neighborhood traffic calming project.
Name of neighborhood (street location):
1. Travel Speed (40 pts. max.)
F,or each mile per hour the 85th percentile speed is over the base
speed, 10 points will be assigned. Base speed is 7 miles per hour
over the prima facie speed limit.
Critical Speed: _ _,____ Base Speed: __ _
2. Traffic Volumes (30 pts. max.)
Total weekday ADT divided by 100, rounded to nearest whole number
or weekday peak hour volume divided by 10, rounded to nearest
whole number (use higher number)
Volume: _____ Date Counted: ____ _
3. Collision History (10 pts. max.)
One point for each correctable collision during the past 5 years
Number of collisions: _____ _
4. Sidewalks (5 pts. max.)
No sidewalk or pedestrian pathway exists along at least one side ·
of the street= 5 points
A sidewalk or pedestrian pathway exists on at least one side of the
Street = 0 points
5. School Proximity (5 pts. max.)
School grounds abut candidate street = 5 points
PAOI is located within 500 feet of school grounds = 3 points
PAOI is located within 1,000 feet of school grounds = 1 point
6. Pedestrian Crossings (10 pts. max.)
School crosswalk (yellow crosswalk) is located on a street in the
PAO!= 5 points
Major crosswalk is located on a street in the PAOI = 10 points
Total Score:
Evaluator Date
11
Points
CARLSBAD RESIDENTIAL TRAFFIC MA( ..:MENT PROGRAM
Step 7 Annual Review by the Traffic Safety Commission (TSC)
On a yearly basis, typically in November or December, the Traffic Safety Commission will
review the list of all candidate streets with priority rankings based upon the priority scoring
worksheet detailed in Step 6 above. The review will take place at a public meeting duly noticed
a minimum of 30 days in advance. Further, each individual or group that initiated a project for
evaluation will be notified of the meeting by staff in writing. Upon review of the City Traffic
Engineer's recommendation, and after considering all public input, the TSC will recommend a
priority listing of candidate streets to be forwarded to the City Council for approval.
Step 8 City Council Approval
The City Council will review and, if in concurrence, approve the priority listing of traffic calming
projects established by the TSC and this list will establish priorities for City funding iri order of
the projects' ranking. Funding availability will depend upon resources available in the yearly
operating budget.
Step 9 Ranked Proje_cts Remain Eligible for Three Years
Each year, new projects in the approval pipeline will be assigned points and placed on a priority
list in accordance with the established process. Traffic calming projects will remain on the
priority list for three years, during which time they will be eligible for funding consideration.
During this period of eligibility, projects could move up or down in the ranking as new projects
are added to the priority list in the order their point totals warrant.
Prior to a project's final year on the priority list, its point total will be updated according to the
latest information available and it will assume a place on the priority list according to that
reworked total. At the end of the third year, any project still not qualifying for funding will be
removed from the list if an extension in time is not requested.
A one-time, two year extension of time for a • project to remain on the priority list may be
requested by the PAOI representative. This written request should be sent to the Public Works
Director and it must be accompanied by a petition signed by individuals in the Project Area of
Influence (PAOI). The petition, signed by a simple majority (50% plus one signature) of eligible
individuals located within the PAOI, must indicate support of having the project remain on the
priority list an additional two years (for a total of five years, maximum). Without that support, the
project will be removed from the priority list after three years.
A project that has not received funding after five years will be removed from the priority list. One
year after its removal from the list, the project may be considered for restoration to the priority
list when PAOI representatives follow the process outlined below.
One year after a project fails to receive funding and is removed from the priority list, the
community representative for that project may request that it be considered for restoration to the
list. Such request must be made at the time the next cycle of projects is submitted for the annual
review by the TSC.
12
CARLSBAD RESIDENTIAL TRAFFIC MANA,f-'-'"'•~ENT PROGRAM /
~ -----------r\
Traffic Management Program
Priority Scoring Worksheet
This worksheet will be completed by City of Carlsbad staff. It will be used to assign points to a
street for prioritization of a potential specific neighborhood traffic calming project.
Name of neighborhood (street location): -:DoV\V\ci,. ·]) (i've..,,,
1. Travel Speed (40 pts. max.)
For each mile per hour the 85th percentile speed is over the base
speed, 10 points will be assigned. Base speed is 7 miles per hour
over the prima facie speed limit. ( por-le)., 2.5 ~pl,,) ( 1 W\ph o~ Ba.sa.SpMA)
Critical Speed: 3 3 MfV-. . Base Spe_ed: -32 Mf~ ·
2. Traffic Volumes (30 pts. max.)
Total weekday ADT divided by 100, rounded to nearest whole number
or weekday peak hour volume divided by 10, rounded to nearest
whole number (use higher number) 2.~2.1--;-100 == 2.'3.2.I =:. ~
Volume: '.2., 32.,[ Date Counted: ll/1s/o(o r • I
3. Collision History (10 pts. max.)
One point for each correctable collision during the past 5 years
Number of collisions: ~ +ota-1) O ~ CDrruh.b,le..
. Dy.r.t:)
4. __ Sidewalks. (~pis. max.) ___________ ·------·--··-------------·-··-·--------------·--
</€.! No sidewalk or pedestrian pathway exists along at least one side
of the street = _§__p.Qints
A sidewalk or pedestrian pathway exists qn at least one side of the
Street = 0 points
Points
0
5. School Proximity (5 pts. max.)
>Jo School grounds abut candidate street = 5 points .·
_3_,__p+-_L_
Y~ PAOI is located within 500 feet of school grounds= .lB_oints
-PAOI is located within 1,000 feet of schooi groun\:js = 1 point
6. Pedestrian Crossings (10 pts. max.)
N" School crosswalk (yellow crosswalk) is located on a street in the
PAOI = 5 points
~ Major crosswalk is located on a street in the PAOI = 1 O points
Total Score:
0
EXHIBIT 4
_________________________________ ........
11
CARLSBAD RESIDENTIAL TRAFFIC MA{ .MENT PROGRAM (
Traffic Management Program
Priority Scoring Worksheet
This worksheet will be completed by City of Carlsbad staff. It will be used to assign points to a
street for prioritization of a potential specific neighborhood traffic calming project.
Name of neighborhood (street location):
1. Travel Speed (40 pts. max.)
For each mile per hour the 85th percentile speed is over the base
speed, 10 points will be assigned. Base speeq i~ 7 mi_les per hour'\
over the prima facie speed limit. ( pc$.~ Z£ ,.,,f~) , 0 n1~1,, e,v4Jr-&scz. ~ J
Critical Speed: · 32111ph Base Speed: 32. ""'fh
2. Traffic Volumes (30 pts. max.)
Total weekday ADT divided by 100, rounded to nearest whole number
or weekday peak hot..ir volume divided by 10, rounded to nearest
whole number (use higher number) ~.22.-;-100 = 0.:2-2-"" ~
Volume: 92. 2.. Date Counted: 2./'Af(J7 I
3. Collision History (10 pts. max.)
One point for each correctable collision during the past 5 years
Number of collisions: (3 fr.rt:a,() C> ~6'rte4'~1-e.
4. Sidewalks (5 pts. max.)
No sidewalk or pedestrian pathway exists along at least one side
of the street = 5 points .
A sidewalk or pedestrian pathway exists on at least one side of the
Street= 0 points ( ,:e;/t,J ovi ~ i1Je.S ~ .9\-re.L-t)
5. School Proximity (5 pts. max.)
I-lo School grounds abut candidate street = 5 points
No PAOI is located within 500 feet of school grounds= 3 points
No PAOI is located within 1,000 feet of school grounds= 1 point
6. Pedestrian Crossings (1 0 pts. max.)
~ School crosswalk (yellow crosswalk) is located on a street in the
PAOI = 5 points
No Major crosswalk is located on a street in the PAOI = 10 points
Total Score:
Points
0
0
()
Q
0
EXHIBIT !ii ---------------------------------11