County of Marin - News Releases - Coordinated Traffic Signals

For Immediate Release
September 18, 2018

Sir Francis Drake Traffic Signals to be Coordinated

Grant funding to help pay for improved timing of signals along key arterial road

San Rafael, CA – Traffic flow will soon be improved along approximately 2.5 miles of Sir Francis Drake Boulevard, between Larkspur and Kentfield, by implementing a signal synchronization project.

Traffic along Sir Francis Drake Boulevard in Greenbrae.Eleven traffic signals will be synchronized along a stretch of Sir Francis Drake Boulevard.
The California Department of Transportation (Caltrans), the City of Larkspur and the County of Marin were selected by the Metropolitan Transportation Commission (MTC) to receive a Program for Arterial System Synchronization (PASS) grant. The $83,575 grant will help fund a coordinated effort by the three recipient agencies to improve traffic signal timing along the heavily used stretch of Sir Francis Drake Boulevard.

MTC will administer and manage the grant for the three agencies, each of which has jurisdiction over different sections of the 2.5 miles of roadway being addressed. The project will study and synchronize 11 traffic signals, nine of them being under County jurisdiction and two under the City of Larkspur. Additionally, Caltrans will review the traffic study, which analyses two of its signals located near the Highway 101 access ramps, and might move forward with signal timing changes.

The synchronization project is now in the early planning stages, requiring analysis of traffic data and determining viable improvement strategies. Implementation of the project is anticipated to begin by April 2019 and is expected to be completed by the end of June.

The PASS grant covers 85 percent of the traffic signal retiming work and 50 percent of related GPS clock infrastructure improvements in the estimated $98,900 project. The local funding, totaling $15,325, will be split by the County and the City of Larkspur in proportion to the number of signals under its jurisdiction, $12,539 and $2,786 respectively.

MTC’s PASS provides financial and technical assistance to Bay Area agencies, helping improve the safety and efficiency of traffic signal systems in high-volume corridors. Improving traffic signal coordination provides a range of benefits to the public, including increased predictability for commuters, reduced traffic congestion, more consistent travel speeds and reliable travel time during peak hours. These benefits have been shown to help reduce rear-end collisions, as well as decrease vehicle emissions due to less stop-and-go traffic.


Craig Tackabery
Chief Assistant Director
Department of Public Works

3501 Civic Center Drive.
San Rafael, CA 94903
(415) 473-6582
Email: Craig Tackabery
DPW Website