![A carpool only exit sign on Highway 405 with cars driving in background. Bellevue, Washington, USA Stock Photo - Alamy A carpool only exit sign on Highway 405 with cars driving in background. Bellevue, Washington, USA Stock Photo - Alamy](https://c8.alamy.com/comp/BEM8W2/a-carpool-only-exit-sign-on-highway-405-with-cars-driving-in-background-BEM8W2.jpg)
A carpool only exit sign on Highway 405 with cars driving in background. Bellevue, Washington, USA Stock Photo - Alamy
511 SF Bay - Attention: the Bay Bridge rule is 3+ to carpool. The Bryant Street carpool on-ramp in San Francisco and toll plaza carpool lanes in Oakland require 3 or more
![Car Pool Lane Stock Photo - Download Image Now - Car Pooling, Multiple Lane Highway, Alternative Fuel Vehicle - iStock Car Pool Lane Stock Photo - Download Image Now - Car Pooling, Multiple Lane Highway, Alternative Fuel Vehicle - iStock](https://media.istockphoto.com/id/172356076/photo/car-pool-lane.jpg?s=612x612&w=0&k=20&c=kopjVXb8pvMQaRk08f-Q4uH4jMbgJda5n4NlXJjY4vY=)