June 30, 2026
Orange County Transportation Authority
ATTN: Alicia Yang
Regional Modeling and Traffic Operations
Planning Division
P.O. Box 14184
Orange, CA 92863-1584
Subject: 2026 Local Signal Synchronization Plan Submittal as Part of the Measure M2 Eligibility Process
Dear Ms. Yang:
The City of Garden Grove is pleased to submit its L ocal Signal Synchronization Plan as part of the Measure M2 eligibility process. The submittal includes the following components:
1. A completed “Local Signal Synchronization Plan C onsistency Review Checklist” form establishing consistency between the Local Signal Synchronization Plan and the Regional Traffic Signal Synchronization Master Plan.
2. An updated Local Signal Synchronization Plan for Fiscal Years 2026/27 to 2028/29 including and all required elements as identified i n the “Guidelines for the Preparation of Local Signal Synchronization Plans”.
3. Update of GIS-based online signal inventory.
The City looks forward to continuing the imp lementation of the beneficial programs and construction projects required and made possible by Measure M2.
If you have any questions, please call me at (714) 741-5186.
Sincerely,
Juan Navarro, P.E.
City Traffic Engineer
Enclosures
A. Local Signal Synchronization Plan Consistency Re view Checklist B. Local Signal Synchronization Plan
2 LOCAL SIGNAL SYNCHRONIZATION PLAN CONSISTENCY REVIEW CHECKLIST
The Local Agency Name: _City of Garden Grove____________ Plan Date: _June 30, 2026_
Local agencies must submit a copy of the Local Sign al Synchronization Plan, a completed consistency review checklist, and any supporting documentation.
Complete 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.
4-5 Provided
2) Traffic signal synchronization street routes are identified, including all corridors along the regional signal synchronization network located within the local agency.
6-7 Provided
3) Traffic signal inventory for all traffic signal synchronization street routes.
8-12 Provided
4) Three-year plan separately showing costs, availa ble funding, and phasing for capital, operations, and maintenance of signal synchronization along the traffic signal synchronization street routes and traffic signals, which may include unconstrained and build-out scenarios.
13-16 Provided
5) Signal synchronization review, revision, and assessment of synchronization activities along the traffic signal synchronization street routes and traffic signals.
17-20 Provided
I certify that the above statements are true to the best of my knowledge.
___________________________________________________ ______________ Signature Date
_____Juan Navarro, City Traffic Engineer, City of Garden Grove_____________________ Printed Name, Title, & Local Agency
3 LOCAL SIGNAL SYNCHRONIZATION PLAN (LSSP)
4 SECTION ONE:
TRAFFIC SIGNAL SYNCHRONIZATION GOALS, POLICIES AND
OBJECTIVES
5 The City of Garden Grove’s Local Signal Synchroniza tion Plan (LSSP) is an integral part in helping establish the City’s vision and obj ectives in optimizing the traffic signal progression throughout the City’s traffic signal network.
The City of Garden Grove is continuously changing w ith new developments and thriving communities. With these changes come additional day -to-day traffic and tourism along our arterials. By maintaining and updating our LSSP every 3 years, we can proactively accommodate this growth and continue to provide saf e and efficient transportation facilities to our residents. The City of Garden Gro ve’s LSSP is consistent with OCTA’s regional plan.
The City’s Traffic Management Center (TMC) is an in tegral part of our signal synchronization network. The City currently uses Ce ntracs Advanced Traffic Management System (ATMS) to communicate with our si gnalized intersections (125 locations) through our fiber optic communications n etwork. The TMC also allows staff to utilize fifty-six (56) CCTV cameras, through our Genetec Security Desk Video Management System (VMS) that were strategically pla ced throughout our busiest corridors. In addition to this, the City uses Encon olite Video Detection Systems (VDS) at eighty (80) locations, which provide detection at t he intersection level and also provide supplemental video sources to monitor signal operat ions. These two video sources are invaluable since they allow staff to continuously m onitor entire corridors at one time, while Centracs provides the ability to make signal timing adjustments in response to traffic congestion, construction activity, or incident management.
The City currently has 123 of 141 total traffic sig nals online through its communications network and communicating to Centracs. In order fo r the City to establish connectivity to the remaining 18 signals, certain equipment upgr ades and infrastructure improvements are required. These upgrades and impr ovements are integral to keeping our network up to date, and are an important component of this LSSP.
The City of Garden Grove has been a supporter and p artner in multiple multi- jurisdictional traffic signal synchronization proje cts (TSSP). These numerous projects included the arterials of Valley View St., Magnolia St., Brookhurst St., Euclid St., Harbor Blvd., Katella Ave., Chapman Ave., Garden Grove Blv d., and Westminster Ave. The City is currently active on the following OCTA proj ects: Valley View TSS, Euclid TSS, Baseline Regional Synchronization, and Harbor Trans it Signal Priority (TSP). The City of Garden Grove will continue to support and partic ipate in OCTA’s regional synchronization vision and efforts.
6 SECTION TWO:
TRAFFIC SIGNAL SYNCHRONIZATION STREET ROUTES (MAP)
STANTONANAHEIM
ORANGE
SANTA ANAWESTMINSTERCITY OF CITY OF
CITY OF
CITY OFCITY OF
8 SECTION THREE:
TRAFFIC SIGNAL SYNCHRONIZATION SYSTEM INVENTORY
Corridor Cross Street Intersection AM MID PM WKND Mainten ance Responsibility Cabinet Controller Manufacturer Det ection Bike Detection CCTV Battery Backup Comm. Other IT S ATMS Status Valley View Chapman 130 120 130 Free Garden Grove P (TS2 Type 1) ASC/3 Econol ite (NEMA) Video Yes Other N/A Fiber N/A Centracs Online West Grove 130 120 130 Free Garden Grove P (TS2 Type 1) ASC/2 Econolite (NEMA) Loops No N/A N/A Fiber N/A Centracs Online Belgrave 130 120 130 Free Garden Grove P (TS2 Type 1) ASC/2 Ec onolite (NEMA) Loops No N/A N/A Fiber N/A Centracs Online Lampson 130 120 130 Free Garden Grove P (TS2 Type 1) ASC/2 Econo lite (NEMA) Loops No Other N/A Fiber N/A Centracs Online Cenulean 130 120 130 Free Garden Grove P (TS2 Type 1) ASC/2 Econo lite (NEMA) Loops No Other N/A Fiber CMS Centracs Online Tiffany 120 Free 120 Free Caltrans Other 170/170E Other Loops No N/ A N/A Other N/A N/A N/A WB 22 Off Ramp - - - - Caltrans Other 170/170E Other Loops No N/A N /A Other N/A N/A N/A Garden Grove - - - - Caltrans Other 170/170E Other Loops No N/A N/A Ot her N/A N/A N/A Brookhurst Orangewood 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Ec onolite (NEMA) Video Yes Bosch N/A Fiber N/A Centracs Online Chapman 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Econoli te (NEMA) Video Yes Other N/A Fiber N/A Centracs Online Pavillion 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Ec onolite (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Bixby 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Econolit e (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Lampson 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Econol ite (NEMA) Video Yes Other N/A Fiber N/A Centracs Online Stanford 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Econo lite (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Garden Grove 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt E conolite (NEMA) Video Yes Bosch N/A Fiber N/A Centracs Online Trask 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Econoli te (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online EB 22 On Ramp 120 120 120 120 Caltrans Other 2070 Other Loops No N/ A N/A Other N/A N/A N/A Woodbury/Traylor 140 140 140 140 Garden Grove P (TS2 Type 1) Coba lt Econolite (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Westminster 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt E conolite (NEMA) Video Yes Other N/A Fiber N/A Centracs Online 15th/ Reading 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt E conolite (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online 11th Street 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt E conolite (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Hazard 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Econol ite (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Euclid Orangewood 120 120 120 120 Garden Grove P (TS2 Type 1) ASC/3 Ec onolite (NEMA) Loops No Bosch N/A Fiber N/A Centracs Online Chapman 130 130 130 130 Garden Grove P (TS2 Type 1) ASC/3 Econoli te (NEMA) Video Yes Other N/A Fiber N/A Centracs Online Marian 120 120 120 120 Garden Grove Other ASC/3 Econolite (NEMA ) Loops No N/A N/A Fiber N/A Centracs Online Lampson 120 120 120 120 Garden Grove P (TS2 Type 1) ASC/3 Econol ite (NEMA) Loops No Other N/A Fiber N/A Centracs Online Main/College 120 120 120 120 Garden Grove P (TS2 Type 1) ASC/3 Econolite (NEMA) Loops No N/A N/A Fiber N/A Centracs Online Stanford 120 120 120 120 Garden Grove P (TS2 Type 1) ASC/3 Econo lite (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Acacia 120 120 120 120 Garden Grove P (TS2 Type 1) ASC/3 Econol ite (NEMA) Loops No Other N/A Fiber N/A Centracs Online Garden Grove 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt E conolite (NEMA) Video Yes Bosch N/A Fiber N/A Centracs Online Century 120 120 120 120 Garden Grove P (TS2 Type 1) ASC/3 Econoli te (NEMA) Loops No Other N/A Fiber N/A Centracs Online Trask 120 120 120 120 Garden Grove Other ASC/3 Econolite (NEMA) Loops No Other N/A Fiber N/A Centracs Online SR-22 120 120 120 120 Caltrans Other 2070 Other Loops No N/A N/A Othe r N/A N/A N/A Westminster 140 140 140 140 Garden Grove P (TS2 Type 1) ASC/3 E conolite (NEMA) Loops No Other N/A Fiber N/A Centracs Online Harbor Chapman 130 130 130 130 Garden Grove P (TS2 Type 1) ASC/3 Econoli te (NEMA) Video Yes Other N/A Fiber N/A Centracs Online Resort Way 130 130 130 130 Garden Grove P (TS2 Type 1) ASC/3 E conolite (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Twintree 130 130 130 130 Garden Grove P (TS2 Type 1) Cobalt Econo lite (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Lampson 130 130 130 130 Garden Grove P (TS2 Type 1) ASC/3 Econol ite (NEMA) Video Yes Other N/A Fiber N/A Centracs Online Cycle Length Equipment
LSSP 2026 - Traffic Signal Synchronization Inventor y
City of Garden Grove
Corridor Cross Street Intersection AM MID PM WKND Mainten ance Responsibility Cabinet Controller Manufacturer Det ection Bike Detection CCTV Battery Backup Comm. Other IT S ATMS Status Cycle Length Equipment
LSSP 2026 - Traffic Signal Synchronization Inventor y
City of Garden Grove
Harbor Great Wolf 130 130 130 130 Garden Grove P (TS2 Type 1) Cobalt E conolite (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Palm 130 130 130 130 Garden Grove P (TS2 Type 1) ASC/3 Econolit e (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Garden Grove 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt E conolite (NEMA) Video Yes Bosch N/A Fiber N/A Centracs Online Albertsons 130 130 130 130 Garden Grove P (TS2 Type 1) ASC/3 Eco nolite (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online SR-22/Banner 120 120 140 120 Caltrans Other 170/170E Other Loops No N/A N/A Other N/A N/A N/A Trask 130 130 130 130 Garden Grove P (TS2 Type 1) ASC/3 Econoli te (NEMA) Video Yes Other N/A Fiber CMS Centracs Online Cardinal 130 130 130 130 Garden Grove P (TS2 Type 1) ASC/3 Econol ite (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Chapman Valley View 130 120 130 120 Garden Grove P (TS2 Type 1) ASC/3 Econolite (NEMA) Video Yes Other N/A Fiber N/A Centracs Online Springdale 130 110 130 110 Garden Grove P (TS2 Type 1) ASC/3 Econo lite (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Lamplighter 130 110 130 110 Garden Grove P (TS2 Type 1) Cobalt Ec onolite (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Knott 130 110 130 110 Garden Grove P (TS2 Type 1) ASC/3 Econolit e (NEMA) Video Yes Other N/A Fiber N/A Centracs Online Monarch 130 110 130 110 Garden Grove P (TS2 Type 1) ASC/3 Econol ite (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Western 130 110 130 110 Garden Grove P (TS2 Type 1) ASC/3 Econo lite (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Ped Signal 65 55 65 55 Garden Grove Other ASC/3 Econolite (NEMA) L oops No N/A N/A Fiber N/A Centracs Online Beach 140 120 140 120 Caltrans P (TS2 Type 1) 170/170E Other Lo ops No N/A N/A Other N/A N/A N/A Nearing 130 130 130 130 Orange County Other other Econolite (NEMA) Loops No N/A N/A Fiber N/A Centracs Online Dale 130 130 130 130 Garden Grove P (TS2 Type 1) ASC/3 Econolit e (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Magnolia 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Econo lite (NEMA) Video Yes Other N/A Fiber N/A Centracs Online Gilbert 130 130 130 130 Garden Grove P (TS2 Type 1) ASC/3 Econol ite (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Promenade 130 130 130 130 Garden Grove P (TS2 Type 1) ASC/3 Econo lite (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Covey 130 130 130 130 Garden Grove P (TS2 Type 1) ASC/3 Econoli te (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Brookhurst 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Eco nolite (NEMA) Video Yes Other N/A Fiber N/A Centracs Online Nutwood 130 130 130 130 Garden Grove P (TS2 Type 1) ASC/3 Econol ite (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Euclid 130 130 130 130 Garden Grove P (TS2 Type 1) ASC/3 Econoli te (NEMA) Video Yes Other N/A Fiber N/A Centracs Online Della 130 130 130 130 Garden Grove P (TS2 Type 1) ASC/3 Econoli te (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online 9th Street 130 130 130 130 Garden Grove P (TS2 Type 1) ASC/3 Ec onolite (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online West 130 130 130 130 Garden Grove P (TS2 Type 1) ASC/3 Econolit e (NEMA) Video Yes Other N/A Fiber N/A Centracs Online Buaro 130 130 130 130 Garden Grove P (TS2 Type 1) ASC/3 Econolit e (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Harbor 130 130 130 130 Garden Grove P (TS2 Type 1) ASC/3 Econoli te (NEMA) Video Yes Other N/A Fiber N/A Centracs Online Willowbrook 130 130 130 130 Garden Grove P (TS2 Type 1) ASC/3 E conolite (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Somerset 130 130 130 130 Garden Grove P (TS2 Type 1) ASC/3 Eco nolite (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Haster 130 130 130 130 Garden Grove P (TS2 Type 1) ASC/3 Econol ite (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Garden Grove Knott - - - - Caltrans Other Other Other Loops No N/A N/A Other N/A N/A N/ A Beach - - - - Caltrans Other Other Other Loops No N/A N/A Other N/A N/A N /A Dale 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Econolit e (NEMA) Video Yes Bosch N/A Fiber N/A Centracs Online Newland 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Econol ite (NEMA) Video Yes Bosch N/A Fiber N/A Centracs Online Magnolia 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Econo lite (NEMA) Video Yes Bosch N/A Fiber N/A Centracs Online Casa Linda 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Eco nolite (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Corridor Cross Street Intersection AM MID PM WKND Mainten ance Responsibility Cabinet Controller Manufacturer Det ection Bike Detection CCTV Battery Backup Comm. Other IT S ATMS Status Cycle Length Equipment
LSSP 2026 - Traffic Signal Synchronization Inventor y
City of Garden Grove
Garden Grove Gilbert 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Econol ite (NEMA) Video Yes Bosch N/A Fiber N/A Centracs Online Galway 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Econol ite (NEMA) Video Yes Bosch N/A Fiber N/A Centracs Online Brookhurst Way/Kerry 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Econolite (NEMA) Video Yes N/A N/A Fiber N/A Centracs Onl ine Brookhurst St 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Econolite (NEMA) Video Yes Bosch N/A Fiber N/A Centracs Online Nutwood 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Econol ite (NEMA) Video Yes Bosch N/A Fiber N/A Centracs Online Nelson/ Century 140 140 140 140 Garden Grove P (TS2 Type 1) Cobal t Econolite (NEMA) Video Yes Bosch N/A Fiber N/A Centracs Online Main 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Econolit e (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Euclid 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Econoli te (NEMA) Video Yes Bosch N/A Fiber N/A Centracs Online 9th Street 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Ec onolite (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Newhope 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Econoli te (NEMA) Video Yes Bosch N/A Fiber N/A Centracs Online West 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Econolit e (NEMA) Video Yes Bosch N/A Fiber N/A Centracs Online Harbor 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Econoli te (NEMA) Video Yes Bosch N/A Fiber N/A Centracs Online Palm 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Econolit e (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Ped Signal/Blackbird 70 70 70 70 Garden Grove Other Cobalt Econolit e (NEMA) Loops No N/A N/A Fiber N/A Centracs Online Partridge 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Eco nolite (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Haster - - - - Caltrans Other 170/170E Other Loops No N/A N/A Other N/ A N/A N/A Fairview - - - - Caltrans Other 170/170E Other Loops No N/A N/A Other N/A N/A N/A Lewis Free Free Free Free Garden Grove P (TS2 Type 1) Cobalt Ec onolite (NEMA) Video Yes N/A N/A GPS N/A N/A Offline Magnolia Orangewood 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Ec onolite (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Chapman 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Econoli te (NEMA) Video Yes Other N/A Fiber N/A Centracs Online Lampson 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Econol ite (NEMA) Video Yes Other N/A Fiber N/A Centracs Online Stanford 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Econo lite (NEMA) Video Yes Other N/A Fiber N/A Centracs Online Garden Grove 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt E conolite (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Trask 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Econoli te (NEMA) Video Yes Other N/A Fiber N/A Centracs Online EB 22 Ramp 120 120 120 120 Caltrans Other 170/170E Other Other No N/A N/A Other N/A N/A N/A Mays 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Econolit e (NEMA) Video Yes Bosch N/A Fiber N/A Centracs Online Trask Beach 130 130 130 130 Caltrans Other 2070 Other Loops No N/A N/A Fibe r N/A N/A N/A Newland Free Free Free Free Garden Grove P (TS2 Type 1) ASC/3 E conolite (NEMA) Video Yes Bosch N/A Fiber N/A Centracs Online Yockey Free Free Free Free Garden Grove P (TS2 Type 1) ASC/3 E conolite (NEMA) Loops No N/A N/A Fiber N/A Centracs Online Magnolia 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Econo lite (NEMA) Video Yes Other N/A Fiber N/A Centracs Online 22 Fwy Off Ramp 120 - 120 - Caltrans Other 170/170E Other Loops N o N/A N/A Other N/A N/A N/A Ped Signal Free Free Free Free Garden Grove Other ASC/3 Econolite (NEMA) Loops No N/A N/A Fiber N/A Centracs Online 22 On/Off Ramps 120 - 120 - Caltrans Other 170/170E Other Loops No N /A N/A Other N/A N/A N/A Brookhurst 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Eco nolite (NEMA) Video Yes Other N/A Fiber N/A Centracs Online Taft Free Free Free Free Garden Grove P (TS2 Type 1) ASC/3 Eco nolite (NEMA) Loops No N/A N/A Fiber N/A Centracs Online Euclid 120 120 120 120 Garden Grove Other ASC/3 Econolite (NEMA) Loops No Other N/A Fiber N/A Centracs Online Newhope Free Free Free Free Garden Grove P (TS2 Type 1) ASC/3 Ec onolite (NEMA) Loops No N/A N/A Fiber N/A Centracs Online Harbor 130 130 130 130 Garden Grove P (TS2 Type 1) ASC/3 Econoli te (NEMA) Video Yes Other N/A Fiber N/A Centracs Online Corridor Cross Street Intersection AM MID PM WKND Mainten ance Responsibility Cabinet Controller Manufacturer Det ection Bike Detection CCTV Battery Backup Comm. Other IT S ATMS Status Cycle Length Equipment
LSSP 2026 - Traffic Signal Synchronization Inventor y
City of Garden Grove
Trask 22 on/off Ramps 120 - 120 - Caltrans Other 170/170E Other Loops No N /A N/A Other N/A N/A N/A Clinton Free Free Free Free Garden Grove P (TS2 Type 1) ASC/3 E conolite (NEMA) Loops No N/A N/A Fiber N/A Centracs Online Roxey Free Free Free Free Garden Grove P (TS2 Type 1) ASC/3 Ec onolite (NEMA) Video Yes N/A N/A Wireless N/A Centracs Online Westminster Deodara 140 140 140 140 Garden Grove P (TS2 Type 1) ASC/3 Econol ite (NEMA) Video Yes Bosch N/A Fiber N/A Centracs Online Bushard 140 140 140 140 Garden Grove P (TS2 Type 1) ASC/3 Econoli te (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Kerry 140 140 140 140 Garden Grove P (TS2 Type 1) ASC/3 Econoli te (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Brookhurst St 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Econolite (NEMA) Video Yes Other N/A Fiber N/A Centracs Online Dawson/Hope 140 140 140 140 Garden Grove P (TS2 Type 1) Cobalt Ec onolite (NEMA) Video Yes Other N/A Fiber N/A Centracs Online Bowen 140 140 140 140 Garden Grove P (TS2 Type 1) ASC/3 Econoli te (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Taft 140 140 140 140 Garden Grove P (TS2 Type 1) ASC/3 Econolit e (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Euclid 140 140 140 140 Garden Grove P (TS2 Type 1) ASC/3 Econoli te (NEMA) Video Yes Bosch N/A Fiber N/A Centracs Online Roxey 140 130 140 130 Garden Grove P (TS2 Type 1) ASC/3 Econoli te (NEMA) Video Yes Bosch N/A Fiber N/A Centracs Online Knott Orangewood 130 110 130 110 Garden Grove P (TS2 Type 1) ASC/3 Ec onolite (NEMA) Loops No N/A N/A Fiber N/A Centracs Online Chapman 130 110 130 110 Garden Grove P (TS2 Type 1) ASC/3 Econoli te (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Lampson 130 110 130 110 Garden Grove P (TS2 Type 1) ASC/3 Econol ite (NEMA) Video Yes Other N/A Fiber N/A Centracs Online Stanford 65 110 130 110 Garden Grove P (TS2 Type 1) ASC/3 Econol ite (NEMA) Video Yes N/A N/A Fiber N/A Centracs Online Acacia - - - - Caltrans Other 170/170E Other Loops No N/A N/A Other N/ A N/A N/A Garden Grove - - - - Caltrans Other 170/170E Other Loops No N/A N/A Ot her N/A N/A N/A Katella Dale 140 130 140 130 Garden Grove P (TS2 Type 1) Cobalt Econolite (NEMA) Loops No N/A BBS Wireless N/A Centracs Online Gilbert 140 130 140 130 Garden Grove P (TS2 Type 1) Cobalt Econolite (NEMA) Loops No N/A BBS Wireless N/A Centracs Online Fairview 22 Fwy On Ramp - - - - Caltrans Other 170/170E Other Loops No N/A N/A Other N/A N/A N/A 22 Fwy Off Ramp - - - - Caltrans Other 170/170E Other Loops No N/A N/A Other N/A N/A N/A 13 SECTION FOUR:
TRAFFIC SIGNAL SYNCHRONIZATION THREE YEAR PLAN
14 3-YEAR OUTLOOK:
TRAFFIC SIGNAL SYNCHRONIZATION (TSS)
Funding Needs for Synchronized Operation (Constrained)
Reporting Jurisdiction Expenditures: City of Garden Grove _
Type of Traffic Signal Synchronization Expenditures in Year of Expenditure Dollars
MAINTENANCE
PROJECT FY26/27 FY27/28 FY28/29 TOTAL
Communication and Software Maintenance 40,000 40,000 40,000 120,000
Subtotal Maintenance 40,000 40,000 40,000 120,000
CONSTRUCTION
PROJECT FY26/27 FY27/28 FY28/29 TOTAL
Citywide Signal Synchronization: 1,599,000 60,000 60,000 1,719,000 Replace controllers, cabinets, switches,
Detection, fiber splicing, and TMC upgrades.
Subtotal Construction 1,599,000 60,000 60,000 1,719,000
OPERATIONS
PROJECT FY26/27 FY27/28 FY28/29 TOTAL
Citywide Signal Timing Maintenance 45,000 45,000 45,000 135,000
Subtotal Operations 45,000 45,000 45,000 135,000
Grand Total 1,684,000 145,000 145,000 1,974,000
15 3-YEAR OUTLOOK:
TRAFFIC SIGNAL SYNCHRONIZATION (TSS)
Funding Needs for Synchronized Operation (Unconstrained)
Reporting Jurisdiction Expenditures: City of Garden Grove _
Type of Traffic Signal Synchronization Expenditures in Year of Expenditure Dollars
MAINTENANCE
PROJECT FY26/27 FY27/28 FY28/29 TOTAL
Communication and Software Maintenance 75,000 75,000 75,000 225,000
Subtotal Maintenance 75,000 75,000 75,000 225,000
CONSTRUCTION
PROJECT FY26/27 FY27/28 FY28/29 TOTAL
Citywide Signal Synchronization: 1,800,000 1,000,000 1,000,000 3,800,000 Replace controllers, cabinets, switches,
Detection, fiber splicing, and TMC upgrades.
Subtotal Construction 1,800,000 1,000,000 1,000,000 3,800,000
OPERATIONS
PROJECT FY26/27 FY27/28 FY28/29 TOTAL
Citywide Signal Timing Maintenance 90,000 90,000 90,000 270,000
Subtotal Operations 90,000 90,000 90,000 270,000
Grand Total 1,965,000 1,165,000 1,165,000 4,295,000
16 LSSP IMPLEMENTATION – CANDIDATE SIGNAL
SYNCHORNIZATION PROJECTS WITH ESTIMATED COSTS
Reporting Jurisdiction Expenditures: City of Garden Grove
The City is currently active on four (4) OCTA funde d projects: Valley View TSS, Euclid TSS, Harbor TSP, and Baseline Coun ty-Wide TSS.
These projects are anticipated for implementation i n FY26/27.
Candidate corridors for future synchronization effo rts include Knott St., Westminster Blvd., and Chapman Ave. The City is planning to pursue grant funding for these corridors in FY 26/2 7 to FY 27/28. The scope of the projects include upgrades for signal t iming, signal cabinets, fiber optic switches, video detection, CCTV cameras, as well as upgrades for equipment in the Traffic Management Center (TMC).
CORRIDOR IMPROVEMENT SUMMARY ESTIMATED
COST
Knott St. Upgrade timing, cabinets, switches, detection, CCTV cameras, and TMC upgrades. $500,000
Westminster Blvd. Upgrade timing, cabinets, switches, detection, CCTV cameras, and TMC upgrades. $1,000,000
Chapman Ave. Upgrade timing, cabinets, switches, detection, CCTV cameras, and TMC upgrades. $2,000,000
Total Estimated Cost $3,500,000
17 SECTION FIVE:
TRAFFIC SIGNAL SYNCHRONIZATION REVIEW, REVISION,
AND ASSESMENT
18 For FY23/24-FY25/26, the City of Garden Grove did n ot participate in implementation of TSS projects. As mentioned above, the City of Garden Grove is currently active on four (4) OCTA funded signal ope rations projects: Valley View TSS, Euclid TSS, Harbor TSP, and Baseline County-Wi de TSS. These are anticipated for implementation phase during FY26/27 . Therefore, before/after performance metrics for these project arterials wil l not be included in this report. In addition to this, the City of Garden Grove has rece ntly initiated efforts with Caltrans, with the objective of re-synchronizing historically congested areas near the 22 Freeway and having more collaborative coordination between the two agencies.
The study areas include segments of Brookhurst, Mag nolia, and Harbor. These will also be excluded from analysis until they are compl eted later this year. Instead, a candidate arterial for future project efforts will be presented. The performance metrics for Chapman Ave. are shown on Page 18. Metr ics data shown represents conditions from the arterials last synchronization efforts in March 2018 (before conditions), along with conditions as of April 2026 (after conditions). The objective of presenting this data is to see how the arterial is performing several years after its last synchronization project. The performance metri cs for after conditions were collected using Iteris Clearguide Roadways platform , using probe data analytics.
The before conditions were taken from the TSSP Fina l Report after studies, collected using floating car method. To match condi tions, the entire arterial limits present in the previous TSSP were analyzed for after conditions, as well.
Optimizing progression along our major arterials is a priority in the City of Garden Grove. Reducing stops and travel times results in reduced emissions, while also increasing safety and overall driver satisfaction. As part of the synchronization projects, the selected consultant is required to pe rform before and after studies which include several measures of effectiveness. Th e candidate project, Chapman Ave., showed a decrease in travel times for the va rious periods (AM, MD, PM) and direction of travel (EB/WB), ranging from 9-28% Si milarly, speeds along Chapman Ave. increased between 38-76% for the study periods and directions. Finally, total delay along Chapman Ave. was decreased between 10-5 8%. Although performance metrics show improvement between last s ynchronization efforts to present, it is important to stress that new synchro nization efforts can still greatly benefit the arterial when also considering user saf ety through basic timing updates along with infrastructure improvements. Furthermore, probe data analytics is a fairly new technology and before/after results may require further review when comparing to the previously used floating car method used on the last TSS project. Finally, it should be noted that Clearguide data is only availa ble from year Fall 2023 onward.
Therefore, a comparison using Clearguide data from 2018 to present day, was not available.
As part of the Project P funded projects, consultan ts are required to maintain the synchronization for 3 years. This has been a usefu l tool in keeping our timing plans current. City staff also periodically drives the c orridors to determine whether any problem have arisen since timing implementation. T he City monitors the traffic progression along the corridors through the Centrac s ATMS and CCTV Cameras in the Traffic Management Center.
19 It is paramount to the City that the corridors in t he Local Signal Coordination Plan be updated on a timely basis. The City understands that driving patterns, new developments, and population increases require that the synchronization on our corridors be kept up to date. The City of Garden G rove will continue to support OCTA’s goals and visions and will be an active part icipant in all multi-jurisdictional synchronization projects.
20 TRAFFIC SIGNAL SYNCHRONIZATION ASSESSMENT,
REVIEW, AND REVISION
Chapman Ave. Assesment (Candidate Project)
Before (03/18) Travel Time (min) Speed (mph) Delay (min)
EB WB EB WB EB WB
AM 7-9 32.4 32.7 24.4 24.3 12.6 12.8
MD 11-2 29.1 27.9 27.2 28.4 9.2 8.0
PM 4-7 37.0 38.2 21.4 20.7 17.1 18.4
After (04/26) Travel Time (min) Speed (mph) Delay (min)
EB WB EB WB EB WB
AM 7-9 29.4 24.1 33.6 42.3 11.3 6
MD 11-2 21.9 21.3 44.5 47.4 3.9 3.5
PM 4-7 26.5 28.6 37.6 35.9 8.4 10.5
Comparison Travel Time (min) Speed (mph) Delay (min)
EB WB EB WB EB WB
AM 7-9 -9% -26% 38% 74% -10% -53%
MD 11-2 -25% -24% 64% 67% -58% -56%
PM 4-7 -28% -25% 76% 73% -51% -43%