LOCAL SIGNAL SYNCHRONIZATION PLAN CONSISTENCY REVIEW CHECKLIST Th
e Local Agency Name: City of Costa Mesa Plan Date: June 1, 2023 Local
agencies must submit a copy of the Local Signal Synchronization Plan, a completed consistency review checklist, and any supporting documentation. Complete the table below.
Com
plete the table below:
Local Agency Statement Page(s) in LSSP Provided or N/A
1) Signal synchronization goals of the agency are consistent with those outlined as part of the Regional Traffic Signal Synchronization Master Plan.
1 - 6 Provided
2) Traffic signal synchronization street routes are identified, including all corridors along the regional signal synchronization network located within the local agency.
7 - 8 Provided
3) Traffic signal inventory for all traffic signal synchronization street routes. 9 - 14 Provided
4) Three-year plan separately showing costs, available funding, and phasing for capital, operations, and maintenance of signal synchronization along the traffic signal synchronization street routes and traffic signals for constrained, unconstrained and build-out scenarios.
15 - 18 Provided
5) Signal synchronization review, revision, and assessment of synchronization activities along the traffic signal synchronization street routes and traffic signals.
19 - 24 Provided
I c
ertify that the above statements are true to the best of my knowledge. ___________________________________________________ ______________ S
ignature Date
Jenni
fer Rosales, Transportation Services Manager, City of Costa Mesa _______________________________________________________________________ Printed Name, Title, & Local Agency
ATTACHMENT 5
1 CITY OF COSTA MESA
LOCAL SIGNAL SYNCHRONIZATION PLAN
June 1, 2023
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SECTION ONE
TRAFFIC SIGNAL SYNCHRONIZATION GOALS, POLICIES AND
OBJECTIVES
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Introduction
Traffic signal coordination is one of the vital aspects of a traffic circulation system because it ensures that motorists are able to travel through multiple intersections along a corridor with minimal stops and short delays. A well-timed, coordinated system permits continuous movement along an arterial or throughout a network of major streets with minimum stops and delays, which, reduces fuel consumption and improves air quality
Goals, Objectives and Policies
The primary goals, objectives and policies included in the circulation element of the adopted 2015-2035 General Plan for the City of Costa Mesa are as follows;
• Goal C-1: Implement “Complete Streets” Policies on Roadways in Costa Mesa o Objective C-1A: Create a transportation network that meets the mobility needs of all Costa Mesa residents, businesses, and visitors.
C- 1.3: Complete and annually maintain a needs assessment for traffic service levels and traffic safety. Develop and annually update a priority list of improvement projects, with priorities based on: 1) correcting identified hazards; 2) accommodating multimodal trips; 3) improving and/or maintaining peak‐hour traffic volumes at critical intersections; 4) improving efficiency of existing infrastructure utilization; and 5) intergovernmental coordination.
• Goal C-2: Effectively Manage and Improve the Roadway System o Objective C-2A: Implement policies that encourage and accommodate all users while maintaining the efficiency of the circulation system. C- 2.6: Periodically review and update traffic signal timing at all signalized intersections to maintain traffic signal coordination and to accommodate bicycle and pedestrian needs.
o Objective C -2B: Construct street improvements and apply congestion management tools to obtain efficient performance of the transportation system. C- 2.10: Continue to deploy intelligent transportation systems (ITS) strategies—such as adaptive signal controls, fiber optic communication equipment, closed circuit television cameras, real‐time transit information, and real ‐ time parking availability information— to reduce traffic delays, lower greenhouse gas emissions, improve travel times, and enhance safety for drivers, pedestrians, and cyclists.
• Goal C-3: Enhance Regional Mobility and Coordination
o Objective C-3A: Promote development of transportation projects along regional corridors
C-3 .1: Maintain compliance with Orange County Congestion Management Plan (CMP) requirements, including consistency with CMP level of service standards, adoption of a seven‐ year capital improvement program, analysis of impacts of land use decisions on the CMP highway system, and adoption and implementation of deficiency plans when intersections do not meet adopted performance standards.
C ‐3.2: Support the goals and objectives of the Orange County Long Range Transportation Plan, including expansion of transportation system choices, 4 3
improvement of transportation system performance, and sustainability of transportation infrastructure.
C ‐3.3: Support the goals and objectives of the SCAG Regional Transportation Plan/Sustainable Communities Strategy (RTP/SCS), including expansion of transportation system choices, improvement of transportation system performance, and sustainability of transportation infrastructure.
C ‐3.4: Coordinate signal timing on all major arterials with a local signal synchronization program consistent with the Orange County Traffic Signal Synchronization Master Plan (TSSMP).
C ‐3.5: Ensure Costa Mesa’s input, participation, and discretionary review of applicable region ‐wide transportation system policies, programs, and construction.
C ‐3.6: Develop short -term and long -term improvements to the SR -55 corridor in coordination with Caltrans and OCTA to address regional mobility needs.
o Objective C ‐3B: Coordinate and partner with local and regional agencies to promote projects and polices that improve regional mobility. C ‐3.8: Coordinate with adjacent jurisdictions to maintain or improve mobility within the City to achieve a standard Level of Service no worse than “D” at all intersections under State or joint control. Intersection Level of Service analyses for General Plan conditions for locations under State or joint control will be updated periodically and presented to the City Council. C ‐3.11: Collaborate with Caltrans and neighboring jurisdiction to improve signal timing and coordination along major ar terials across jurisdictional boundaries.
C ‐3.12: Work closely with the State of California and other government agencies to control traffic –related impacts of uses on State- or other agency-owned land (i.e., Orange County Fairgrounds, Orange Coast College, etc.).
C ‐3.13: Coordinate with other responsible agencies the planning, funding, prioritization, and implementation of bicycle, pedestrian, and transit programs and supporting infrastructure.
• Goal C-5: Ensure Coordination between the Land Use and Circulation Systems o Objective C -5A: Coordinate land use policies and development activities that support a sustainable transportation system.
C- 5.9: Require that circulation necessary to provide or attain the minimum traffic level of service standard at an intersection to which a development project contributes measureable traffic be completed within three years of issuance of the first building permit for such development project, unless additional right-of-way or coordination with other government agencies is required to complete the improvement. Improvements may be required sooner if, because of extraordinary traffic generation characteristics of the project or extraordinary impacts to the surrounding circulation system, such improvements are necessary to prevent significant adverse impacts.
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Signal Synchronization
The purpose of the Local Signal Synchronization Plan (LSSP) is to identify local and regional travel corridors within the City of Costa Mesa and develop a blue print for implementation of signal coordination along these corridors. The LSSP will include guidelines for synchronizing traffic signals based on equipment limitations, capacity restrictions and funding constraints.
The traffic on arterials and highways in the region continues to increase with minimal increase in capacity of the circulation system. This results in increased congestion and delay along important travel corridors in the City. Coordination of traffic signals along the corridors will increase the capacity of intersections thus reducing congestion and delay for all modes.
Implementation of Signal Coordination along major arterials will provide the following benefits:
• Effectively manage the throughput capacity of intersections to improve mobility through the use of appropriate layouts and control measures and regular reviews and updates to the operational parameters;
• Reduce vehicle stops and delays, thereby:
o lessening the negative impacts to air quality; and
o reducing fuel consumption.
• Improve and enhance signal timing for bicycles and for pedestrian crossings.
Goals for near term and long range implementation
The near term goal for the City is to upgrade the existing traffic signal infrastructure at intersections as well as at the Traffic Operation Center (TOC) and establish communication to all signalized intersections via fiber optic network. Currently, the City is working with Orange County Transportation Authority (OCTA) to upgrade traffic signal equipment and communication in order to establish a seamless City network.
The long term goal for the City is to develop a state- of-the-art TMC and upgrade the multimodal elements of the signal system to include a robust network of video detection for bicyclists and pedestrians, audible pedestrian signals, and Closed Circuit Television (CCTV) cameras. The implementation of these upgrades will provide the City with the necessary tools to identify traffic signal related issues quickly and address them efficiently for all users . It will also help in maintaining signal coordination along regional and local corridors.
Infrastructure upgrades, modernization, and maintenance needs
The City’s signal synchronization plan includes various upgrades to infrastructure to support signal synchronization. The City’s primary plan is to migrate from antiquat ed Multisonics 820 controllers to modern Cobalt ATC signal controllers necessary to support updated timing plans and coordination. This antiquated equipment is no longer supported by the manufacturer so parts and repair are now unavailable. Therefore, the City has been upgrading to Cobalt ATC signal controllers to establish communication to the Centracs Advanced Traffic Management System (ATMS). To provide increased reliability and bandwidth necessary for communication with Cobalt ATC controllers and relaying CCTV signals, the City has preferred to install single mode fiber optic (SMFO) cable along major corridors. Modern controller equipment requires additional components within the signal cabinet and in the City’s TOC , such as Ethernet switches and 6 5
networking devices. Thus, additional maintenance of these components is required for increased reliability.
Multi-jurisdictional coordination opportunities and initiatives
Given the geographical location of the City of Costa Mesa, the system of highways and arterials in the region and the existing travel patterns create unique challenges for improving the overall mobility of the transportation system. The circulation network (including freeways) thru the City carries a considerable amount of regional (through) traffic that does not originate or terminate within the City. As a result, the City has to regularly coordinate with the neighboring cities an d other agencies such as Caltrans and Orange County Transportation Authority (OCTA) to maintain a smooth traffic flow for all modes of travel on City arterials and highways. In the last three years since the last update, the City has partnered with several Cities and applied for Measure M /M2 funding for upgrading the traffic signal infrastructure and coordinating signals along regional corridors for the following projects.
• Fairview Road (Garden Grove Boulevard to Newport Boulevard) with the City of Santa Ana
• Red Hill Avenue (Bryan Avenue to Bristol Street) with the City of Irvine • Bear Street (Segerstrom Avenue to Bristol Street) with the City of Santa Ana • Baker Street, Placentia Avenue, Victoria Street, and 19th Street
The City continuously m onitors the traffic conditions along its arterials and highways to identify issue and develop innovative solutions to address them.
Role of local system in regional context including consistency and participation in Project P
The local signal synchronization plan for the City is consistent with the regional synchronization plan developed by OCTA. All the corridors included in the regional plan are part of the local plan.
The regional synchronization plan includes the following corridors in the City of Costa Mesa.
• Harbor Boulevard
• Fairview Road
• Bristol Street
• Red Hill Avenue
• Newport Boulevard
• Baker Street
• Placentia Avenue
• Adams Avenue
• Fair Drive
• Victoria Street
• 17
th Street
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The local signal synchronization plan includes the corridors listed above and the following additional corridors within the City.
• Bear Street
• 19th Street
• Sunflower Avenue
• Anton Boulevard
• Wilson Street
• Paularino Avenue
Policies and strategies for updating signal timing
The City has periodically undertaken updates to signal timing with goals of improving traffic flow and reducing delay for all travel modes. The established minimum timing of phases are derived from standards set forth in the California Manual of Uniform Traffic Control Devices ( CA- MUTCD). The City has regularly refined and improved timing plans to adapt to current travel patterns. The City has implemented traffic signal synchronization plans along major arterial corridors such as Harbor Boulevard and Fairview Road. Modern ASC/3 controllers and SMFO were deployed with these projects and existing timing and coordination plans were reviewed and revised to adhere to current standards. ASC/3 and Cobalt ATC controllers also provide advanced timing features not available with 820 controllers. The City has taken advantage of these features to further improve traffic flow and reduce unnecessary delay for all users.
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SECTION TWO
TRAFFIC SIGNAL SYNCHRONIZATION STREET ROUTES
(EXISTING AND PLANNED)
9 405
CITY OF COSTA MESA
TRAFFIC SIGNAL
SYNCHRONIZATION NETWORK
73 CALIFORNIA
55 CALIFORNIA
LEGEND
COSTA MESA TRAFFIC SIGNAL (131)
OTHER AGENCY SIGNAL
COSTA MESA COORDINATED CORRIDOR
COSTA MESA FUTURE COORDINATED CORRIDOR
OTHER AGENCY COORDINATED CORRIDOR
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SECTION THREE
TRAFFIC SIGNAL INVENTORY
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12 11
13 12
14 13
15 14
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SECTION FOUR
TRAFFIC SIGNAL SYNCHRONIZATION SYSTEM AND THREE-YEAR PLAN
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3-YEAR OUTLOOK
TRAFFIC SIGNAL SYNCHRONIZATION
Funding Needs for Synchronized Operation (Constrained)
Reporting Jurisdiction Expenditures: City of Costa Mesa
MAINTENANCE
PROJECT FY23/24 FY24/25 FY25/26 TOTAL
Traffic Signal Maintenance $500,000 $500,000 $500,000 $1,500,000
Subtotal Maintenance $500,000 $500,000 $500,000 $1,500,000
CONSTRUCTION
PROJECT FY23/24 FY24/25 FY25/26 TOTAL
Baker -Placentia-Victoria-19th Sync $725,000 $725,000 W 19th St/Wallace Ave Traffic Signal $330,000 $330,000 Signal Modernization for Multi-Modal
Systemic Safety Improvements $4,340,100 $4,340,100
Subtotal Construction $1,055,000 $4,340,100 $0 $5,395,100
OPERATIONS
PROJECT FY23/24 FY24/25 FY25/26 TOTAL
Red Hill Avenue Signal
Synchronization $5,600 $5,600 $11,200
Baker -Placentia-Victoria-19th Sync $74,880 $74,880 $74,880 $224,640
Subtotal Operations $80,480 $80,480 $74,880 $235,840
$1,635,480 $4,920,580 $574,880 $7,130,940
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3-YEAR OUTLOOK
TRAFFIC SIGNAL SYNCHRONIZATION
Funding Needs for Synchronized Operation (Unconstrained)
Reporting Jurisdiction Expenditures: City of Costa Mesa
MAINTENANCE
PROJECT FY23/24 FY24/25 FY25/26 TOTAL
Traffic Signal Maintenance $500,000 $550,000 $600,000 $1,650,000 Subtotal Maintenance $500,000 $550,000 $600,000 $1,650,000
CONSTRUCTION
PROJECT FY23/24 FY24/25 FY25/26 TOTAL
Citywide Traffic Signal Improvements $250,000 $250,000 Baker -Placentia-Victoria-19th Sync $725,000 $725,000 Baker – Coolidge Signal Modifications $40,000 $40,000 Baker – Babb Signal Modifications $240,000 $240,000 Fairview – Belfast Traffic Signal $600,000 $600,000 Costa Mesa ITS Improvements
(Communications, Central Sys, CCTV) $250,000 $250,000 Signal Modernization for Multi-Modal
Systemic Safety Improvements $4,340,100 $4,340,100
Placentia Ave/20th St. HAWK Signal $175,000 $175,000 $350,000 Signal System Upgrade – Paularino,
Fair, Wilson, Anton $300,000 $300,000
W 19th St/Wallace Ave Traffic Signal $330,000 $330,000 Subtotal Construction $1,895,000 $4,515,100 $1,015,000 $7,425,100
OPERATIONS
PROJECT FY23/24 FY24/25 FY25/26 TOTAL
Red Hill Avenue Signal
Synchronization $5,600 $5,600 $11,200
Baker -Placentia-Victoria-19th Sync $74,880 $74,880 $74,880 $224,640 Centracs Software Maintenance $25,000 $25,000
Subtotal Operations $105,480 $80,480 $74,880 $260,840 $2,500,480 $5,145,580 $1,689,880 $9,335,940
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LSSP IMPLEMENTATION – CANDIDATE SIGNAL SYNCHRONIZATION
PROJECTS WITH ESTIMATED COSTS
Reporting Jurisdiction Expenditures: City of Costa Mesa
CORRIDOR IMPROVEMENT SUMMARY ESTIMATED COST
Fairview Road
Upgrade timing and replace cabinets
and detection. $1,300,000
Bear Street
Upgrade timing existing intersections
and install new cabinet for pedestrian
signal.
$600,000
Citywide
Upgrade traffic signal and provide ITS
improvements. $1,000,000
Baker Street
Upgrade and replace cabinets and
conduit for needed intersections. $300,000
Placentia Avenue Install and integrate HAWK Signal. $175,000 Paularino-Fair-
Wilson-Anton
Upgrade timing and existing traffic
signals. $300,000
17th Street
Upgrade timing and replace cabinets,
detection. $400,000
W 19th Street
Install new traffic signal at Wallace
Avenue and integrate into existing traffic
network.
$330,000
TMC Upgrade
Centracs Software Maintenance
Agreement for 2 Years (Centracs ATMS
Upgrades and Support)
$50,000
Total Estimated Cost $4,455,000
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SECTION FIVE
TRAFFIC SIGNAL SYNCHRONIZATION ASSESSMENT
REVIEW
AND REVISE, AS MAY BE NECESSARY, THE TIMING OF TRAFFIC
SIGNALS
Significant timing plan updates and projects completed FY 2020/2021 through 2022/2023
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Overall performance results.
The completed TSS projects have yielded improvements in traffic flow during AM, midday, PM and weekend peak hours and generally reduced delay. Tangible benefits in the following areas have been documented.
1. Travel Time Savings – These savings apply to automobile, truck and transit passengers, who benefit from reduced costs according to their “value of time”.
2. Fuel Consumption Savings – These are primarily the reduction in fuel consumption for all types of vehicles as a function of distance and time.
3. Vehicle Maintenance Savings – These are savings associated with the reduction in wear and tear on vehicles correlated to the reduction in number of stops.
4. Greenhouse Gas Emission Reduction – These are savings in Environmental related Health Costs due to reduction in greenhouse gases (CO2 emissions).
The following corridor projects have been completed or in progress since June 2020:
• Fairview Road TSSP (Completed in 2022)
o Upgrade timing, replace controllers, replace select cabinets, install Video Detection, install fiber optic cable, and install CCTV cameras
• Bear Street TSSP (O&M Phase)
o Upgrade timing, replace controllers, replace select cabinets, and install fiber optic cable
• Red Hill Avenue TSSP (In Progress)
o Upgrade timing, replace controllers, install fiber optic cable, install video detection, and install CCTV cameras
• Baker Placentia Victoria 19
TH St TSSP (In Progress)
o Upgrade timing, replace controllers , install EVP, install video detection, install CCTV cameras and implement LPI at select locations.
For the ‘In Progress’ projects, the performance results will be available in the next LSSP update.
The performance results of Fairview Road and Bear Street TSSP projects are attached.
City’s approach and strategy for updating timing plans on a periodic basis.
City staff reviews timing on a quarterly basis based on observed multi-modal travel patterns, traffic counts, and capital improvement projects that involve traffic signal upgrades or roadway improvements. Hard copies of timing plans for all traffic signals are printed and archived once every year. Both basic timing parameters and coordination parameters are evaluated for consistency with timing standards set forth in the California Manual of Uniform Traffic Control Devices (CA-MUTCD). The City has implemented several traffic signal synchronization projects where signal controllers are upgraded to implement updated timing plans for all transportation modes. The City’s overall master plan is to migrate away from antiquated equipment and concurrently review and update existing timing parameters. The City’s overall plan is to implement revised timing along all major corridors for all modes of transportation through future cycles of Project P implementation.
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Performance Evaluation for Corridors in the City
Performance Measure: OCTA developed Corridor Synchronization Performance Index (C SPI) to compare and prioritize corridors having different characteristics for signal synchronization. The index is obtained from data recorded during 'floating car' runs. A corridor is scored based on recorded travel parameters including average speed, number of greens made vs. number of reds stopped, and stops per mile. The sum of the scores from each of the categories gives the total of the index. A 70 is considered the baseline for good operational performance. CSPI value ranging between 50 and 69 indicates a problem generally fixable with a low-cost solutions or signal timing modification. A CSPI below 50 however, indicates a poor corridor performance thereby necessitating larger scale investigation into corridor operations. The figure below is the CSPI scoring rubric. The ‘2023 Corridor Operational Performance’ map at the end of the plan displays the City’s CSPI values.
Synchronized Corridors: As discussed earlier, traffic signal synchronization has been recently implemented along Fairview Road and Bear Street in the City.
Table 1 and Table 2 provide direction-wise CSPI for 'Before' and 'After' conditions for the Fairview Road corridor for AM, Mid-Day, and PM Weekday and Weekend Peak periods, respectively.
Table 3 and Table 4 provide the overall output statistics for the Bear Street corridor. As shown in Table 4, the ‘Before’ and ‘After’ CSPI shows an improvement in traffic operations, and project tier level is attributable to a relatively short corridor length (1.9 miles) and travel time. 23 22
Table 1: MOE and CSPI for Fairview Road 'Before' and ‘After’ Study Conditions (Weekday)
Table 2: MOE and CSPI for Fairview Road 'Before' and ‘After’ Study Conditions (Weekend)
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Table 3: MOE for Bear Street 'Before' and ‘After’ Study Conditions
Table 4: CSPI for Bear Street 'Before' and ‘After’ Study Conditions
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