Roadway Signal Preemption Functional Area


'Roadway Signal Preemption' includes the field elements that receive signal preemption requests from emergency vehicles approaching a signalized intersection and overrides the current operation of the traffic signals to stop conflicting traffic and grant right–of–way to the approaching vehicle.

Included In

City of Columbus Traffic Signals

Functional Requirements

01The field element shall respond to signal preemption requests from emergency vehicles.
02The field element shall inform the controlling center when preemption requests have been received.
03The field element shall send the preemption request to the signal controller to immediately preempt the signal for the requested direction.