What is the purpose of traffic lights?

The purpose of traffic lights is to regulate traffic flow and ensure safety. Traffic lights are strategically placed at intersections and pedestrian crossings to control the movement of vehicles and pedestrians. By turning various colors – red, yellow, and green – these lights communicate when it's safe to proceed, when to prepare to stop, and when to stop completely.

This regulation is crucial in maintaining order on the roads, reducing the likelihood of accidents, and providing a clear system that drivers and pedestrians can follow. For instance, a red light clearly tells drivers to stop, while a green light indicates that they can proceed safely. This effective communication helps to organize traffic movement, minimize congestion, and promote safe passage for both vehicles and pedestrians, ensuring overall roadway safety.