Automatic determination of traffic signal preemption using diffe
Automatic determination of traffic signal preemption using GPS,
Automatic determination of traffic signal preemption using...
Cellular-based preemption system
Centralized traffic signal preemption system and method of use
Clear-cross crossing system
Driveway safety light
Emergency traffic light system
Emergency traffic signal attachment
Emergency traffic signal preempt system
Emergency vehicle command and control system for traffic signal
Emergency vehicle control system traffic loop preemption
Emergency vehicle sound-actuated traffic controller
Emergency vehicle traffic signal preemption system
Emergency vehicle traffic signal preemption system
Emergency vehicle warning and traffic control system
Emergency vehicle warning and traffic control system
Light emitters for optical traffic control systems
Method and system for beacon/heading emergency vehicle...
Multimode traffic priority/preemption intersection arrangement