Trolleys and light rail, safety zones
A safety zone is a space set aside for pedestrians boarding, entering, and waiting for trolleys and light rail vehicles. They are indicated by raised buttons or markers on the roadway near where they stop to pick up or let off passengers.
You will see safety zones in areas where there are street cars or trolleys using the same streets as vehicle traffic, such as in San Francisco, Sacramento, Los Angeles, San Diego and Long Beach.
Do not drive through a safety zone for any reason.
When people are boarding or leaving a streetcar where there is no safety zone, stop behind the nearest door or vehicle platform of the trolley or light rail and wait until the people have reached a safe place.
When a bus or streetcar is stopped at a safety zone or at an intersection where traffic is controlled by a police officer or traffic signal, you may pass as long as it is safe to do so and at no faster than 10 MPH.
You may not park in a safety zone or between a safety zone and the curb. Do not park on trolley or light rail tracks.