The Flashing Yellow Left-Turn traffic signal helps provide safer left-turns for drivers and improve the flow of traffic. The Flashing Yellow Arrow signals replaced the left arrow signals for left-turns at some intersections.
View the following video from Santa Rosa to see how the flashing yellow left-turn signal will operate:
Credits: City of Santa Rosa
Benefits of Flashing Yellow Arrow
- Reduces delays for drivers
- Can reduce left-turn collisions by up to 20%
- Allows more opportunities for left turns to be made compared to existing signals
- Consistency with other jurisdictions in California
How to Use a Flashing Yellow Arrow
It's simple! A Flashing Yellow Arrow means to first YIELD to oncoming vehicles, bicyclists, and pedestrians, then turn left with caution. Remember, oncoming vehicles, bicyclists, and pedestrians will have the right-of-way. The Flashing Yellow Arrow will change to a solid yellow arrow — that means what it has always meant, that the light is about to turn red and you should prepare to stop.
Signal Display Changes

Location of the First Flashing Yellow Left-Turn Signals Installed in Rohnert Park
- Camino Colegio & East Cotati Avenue
- Commerce Boulevard & Alison Avenue
- Commerce Boulevard & Avram Avenue
- Golf Course Drive & Country Club Drive
- Golf Course Drive & Labath Avenue
- Snyder Lane & Eleanor Avenue