How do the Express Lanes in California know how many occupants a car using the express lane contains?

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How does FasTrak flex know how many people are in the car?

FasTrak knows if you are a carpool when you toggle your FasTrak Flex switch from 1 Person to 2 or 3+ people. By doing this, the driver sends a signal to the electronic gantries that there are other occupants in the car.

Can I use FasTrak with 3 people?

Apply for a FasTrak CAV toll tag. Carpools of two people receive a 50% discount on the toll. Carpools with 3+ people, motorcycles, 2-seater vehicles carrying 2 people and vanpools may travel toll free.

How does the California express lane work?

Express Lanes. Express lanes are specially designated highway lanes that offer a new and faster commute option for highway drivers. For solo drivers who cannot use the high-occupancy vehicle (HOV) lane (also called a "carpool lane"), express lanes give the option to pay a per-use toll to use the lane.

Who can drive in the express lane in California?

All vehicles must have a FasTrak toll tag to use the express lanes. Three-person carpools, buses, vanpools and motorcycles travel toll-free with a FasTrak Flex toll tag set to the 3+ position. Two-person carpools with a FasTrak Flex toll tag set to the 2+ position pay half-price tolls.

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Highway 101 Toll-Based Express Lanes Along the Peninsula Open

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