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traffic signal

Also known as: traffic light

Quick Summary

A traffic signal, also known as a traffic light, is a device used to control traffic. These signals, typically employing colored lights, are primarily found at urban intersections to manage the flow of vehicles and allocate right-of-way. More advanced systems can be computerized, monitoring traffic and adjusting signal timing automatically to optimize movement, especially on major routes or freeway ramps. Traffic signals are a key component of traffic management, working alongside road markings and signs to ensure safe and efficient travel.123

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