Roadway Sensors

Roadway sensors

To improve safety and the operational efficiency, traffic signal use various roadway sensors. These sensors provide safety by helping the traffic signal to determine inappropriate time to display the yellow and improve efficiency by reducing loss time as when a signal serves with no road user there. These sensors detect pedestrians, bicyclists, motorists, rail, transit, and emergency vehicles. This is accomplished through various means including buttons, in pavement loops, video analytics, and radar.

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