Vehicles: automated traffic enforcement systems.

Existing law requires a driver facing a steady circular red signal alone to stop at a marked limit line, but if none, before entering the crosswalk on the near side of the intersection or, if none, then before entering the intersection, and to remain stopped until an indication to proceed is shown, except as specified. Existing law makes it unlawful for a driver to enter or travel in any lane over which a red signal is shown. A violation of those provisions is an infraction punishable by a fine of $100. Existing law defines an "official traffic control signal" as any device, whether manually, electrically, or mechanically operated, by which traffic is alternately directed to stop and proceed and which is erected by authority of a public body or official having jurisdiction. Existing law states that any required stop be made at a sign, crosswalk, or limit line indicating where the stop is to be made, but, in the absence of that sign or marking, existing law requires that the stop be made at the official traffic control signal. This bill would also require a stop to be made at an official traffic control signal erected and maintained at a freeway or highway onramp. The bill would also make technical, nonsubstantive changes to that provision.