What’s the Purpose of That Little White Device on the Traffic Light Pole?

Some devices detect vehicles waiting at an intersection or approaching a traffic signal. Others monitor traffic conditions or perform communication functions.

Does it take a picture of every car?
Not necessarily. Radar and many other detection technologies can identify vehicles without taking conventional photographs. Video-based equipment may capture images, depending on its purpose and settings.

Is the device a speed camera?
Not automatically. A small white device on a traffic pole may be a traffic sensor rather than a speed-enforcement camera. You would need information about the specific equipment and local enforcement system to know for sure.

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