Transportation

Details on County projects, including traffic and transportation, that are in various stages of progress.

See the 2018 systemic traffic safety analysis that evaluated and identified high-risk roads and intersections based on collision data.

Information on County-maintained road closures, blocked roadways, damaged/missing street signs and related issues.

The CIP is a multi-year planning tool to identify and implement the County’s short-term and long-term capital needs.

Documents and information on prior bike/pedestrian projects under the WalkBikeMarin program, which encourages active transportation. 

Listing of projects that are open for contractor bidding.

Marin County Transportation & Road Impact fee studies, annual reports presented to the Board of Supervisors and the fee schedule.

• View documents
  • Board of Supervisors Statement of Collection of Developer Fees (June 2, 2020)
  • Traffic Impact Fee Scheduler
  • Road Impact Fee Study
  • Road Impact Resolution (July 13, 2003)
  • Board of Supervisors Resolution (July 9, 2002)
  • Board of Supervisors Resolution (October 16, 1984)

Need to efficiently report traffic signal malfunctions to the correct jurisdiction?

• Here's how
  • The County’s only maintains specific traffic signal and traffic control devices. Please see the full list. 
  • Signals not included on the County's list may either be located on a state highway or at an interchange ramp intersection, which could fall under the jurisdiction of either Caltrans or an incorporated city. For Caltrans devices, please reach out to the Signal Operations representative during normal business hours at 510-715-9592.
  • For problems such as dark or malfunctioning traffic signals or street lights, please call DC Electric at 866-523-8386 or dispatch@dcelectricgroup.com. The following information will be helpful in all calls for service:
    • Intersection name w/ both major road and cross-street
    • Specifics of problem (i.e., signal head light out, in flash, or total outage)
    • For signal head calls, note the specific location of head, the direction facing, and the specific color of a light not working
    • Street light pole number

• View details and documents
  • County of Marin Speed Hump Policy
  • County of Marin Radar Driver Feedback Sign Policy
  • Speeding is a concern for most areas in Marin. Traffic calming can be achieved with focused enforcement. To learn more on this topic and various related details, please see the "Setting Speed Limits" informational packet.          
  • For residents desiring to improve traffic safety in their neighborhood, a good place to start is at Street Smart Marin.
  • If there is an traffic safety issue near a school, a good place to start is with the Safe Routes to School team.