Traffic & Transit
Caltrans To revise Highway 101 HOV Hours After Commuter Backlash In Marin, Sonoma
Following commuter complaints and pressure from officials, Caltrans will revise HOV lane hours on U.S. Highway 101.
MARIN COUNTY, CA — Caltrans plans to revise high-occupancy vehicle lane hours on U.S. Highway 101 in Marin and Sonoma counties after months of complaints from commuters and pressure from local and state officials, transportation agencies announced.
State transportation officials said they will speed up traffic data analysis and determine permanent HOV lane hours by the end of January 2026.
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Updated hours are expected to be implemented in February, once new signage is installed.
The changes follow expanded HOV hours introduced in September, which officials say led to longer commute times, particularly after new federal rules restricted electric vehicle access to HOV lanes unless occupancy requirements are met, a news release issued Friday from Marin County noted.
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Caltrans is also continuing to roll out ramp metering along the Highway 101 corridor as part of broader congestion management efforts.
Additional updates are expected as the agency finalizes its analysis and prepares to implement revised HOV lane hours early next year.
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