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

sensor make the light turn green?
It can provide information that helps the traffic controller decide when to serve a particular direction. However, the sensor does not independently control the lights, and the signal must follow its programmed safety sequence.

Why are some traffic sensors mounted high on poles?
A higher position can give the sensor a clearer view of approaching lanes and a larger area of the intersection. The mounting height and angle depend on the equipment’s design and detection range.

Do traffic sensors work at night?
Many modern sensors operate during both daytime and nighttime conditions. Radar systems,