Interface: Level 1 Cities Signals ITS Field Equipment - Caltrans D11 Connected Vehicle Equipment
Information Flow Definitions
intersection control status (Planned)
Status data provided by the traffic signal controller including phase information, alarm status, and priority/preempt status.
signal priority service request (Planned)
A service request for vehicle priority issued to a traffic signal controller that results in green extension or other accommodation for the priority vehicle, within the current signal timing plan. The request includes the priority level, the desired time and duration of service, and the intended travel path through the intersection. This flow also allows the RSE to cancel a previously issued request for priority.