
Street traffic lights are indispensable elements of modern urban transportation systems. These signal devices, usually mounted at intersections and crossroads, regulate vehicular and pedestrian traffic flow with their distinct red, yellow, and green lights. They ensure order and safety on the roads by assigning the right of way, thus reducing the risk of accidents and congestion. Traffic lights are equipped with sophisticated timing mechanisms that control the duration of each signal phase, optimizing the efficiency of traffic movement during different times of the day. Their intuitive color-coding system and universal symbols make them easily understandable for drivers and pedestrians alike, contributing to the smooth functioning of city streets and highways.