Patent ID: 6940422

Claim:
An emergency vehicle traffic signal preemption system; an intersection communications controller at each intersection for preemption; a traffic light controller receiving inputs from said communications controller to control the operation of traffic lights and pedestrian lights at an intersection; a transceiver for receiving information from an emergency vehicle and transmitting information about the status of an intersection; a real-time status monitor for monitoring status at a selected intersection and verifying preemption of the intersection, said status monitor relaying said status information at said intersection to said communications controller; a transponder in each emergency vehicle receiving said status information being transmitted by said intersection transceiver, said transponder including a transceiver for transmitting emergency vehicle data to said intersection communications controller; a display in said emergency vehicle displaying the status of said intersection and other emergency vehicles responding to an emergency; whereby said emergency vehicle traffic signal preemption system operates autonomously by transmissions to and from said emergency vehicle and intersection.