Fairfax-Bolinas Road in West Marin at milepost 5.73 (approximately 2 miles west of Azalea Hill) is single-lane access with two-way traffic controlled through one lane. This condition is at the construction zone only and will remain in place until project is completed. See project webpage for more details. Thank you for your patience while this project progresses.

Traffic Safety Programs

Planning & Operations

Traffic lightTraffic engineering is the foundation of our roads system in Marin County, with the goal of providing our community with the safest roads possible. Staff engineers are responsible for planning and designing traffic operations of all roads and streets, excluding state highways.

Through the study and review of collision data, traffic patterns, and user habits, staff strives to develop plans and implement programs to maintain an efficient and safe roadway system which addresses the needs of all users, both motorized and non-motorized, of the our road network. This includes, but is not limited to, conducting safety studies and traffic analysis, installation of traffic control devices such as signs, signals, lighting, road markings and speed limit changes, as well as parking planning and related restrictions.

Contact us - our staff is always available to answer questions and offer assistance as needed.

To report an emergency, such as a traffic signal malfunction, please go to our reporting page.

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