Abstract: The present system provides a traffic signal control system which will allow moving emergency vehicles to remotely take control of the traffic signals at an intersection. The transmitter part of the system utilizes a microwave transmitter that is mounted on each emergency vehicle, which transmitter emits a pulse coded message which is received by a permanently fixed receiver at each intersection to be controlled. The receiver includes decoding logic to verify that a valid code request has been transmitted by the vehicle. The receiver includes a directional antenna that faces each direction to be controlled which therefore automatically discriminates against signals being received from other directions, and if the appropriate code is received during a predetermined interval of time, the receiver will cause the traffic signals to cycle so that a green or go phase will be directed to the oncoming emergency vehicle and cross traffic will be warned by red signals facing it.