Traffic Light Signal Diagram - Red, Amber, Green Lights Explained #3242381 (License: Personal Use)

This image depicts a standard vertical traffic signal used globally to regulate vehicular and pedestrian movement at intersections. The top red light indicates stop, the middle amber warns of an impending change, and the bottom green permits passage. Each lens is convex for optimal visibility, housed in a black casing with protective visors to reduce glare.

Commonly used in driver’s manuals, traffic safety websites, educational materials, and municipal transportation pages. Matches user intent for understanding traffic rules, preparing for driving tests, or illustrating road infrastructure.