Traffic signal transfer switch with interlock constructions
Traffic signal using light-emitting diodes
Traffic signal with adjustable cycles
Traffic signal with visible indication in a direction other than
Traffic signaling device having sequentially controlled light ba
Traffic signalling system
Traffic stop sign safety enhancement system
Traffic synchronization device
Traffic-light timed advertising center
Traffic-related message signal using light-emitting diodes
Traffic-signaling system
Transponder detection system and method
Turbo flare hazard maker