Traffic Light Signal Diagram - Red, Yellow, Green Meaning & Usage #1841335 (License: Personal Use)

This image displays a standard vertical traffic signal housing with three circular lenses: red on top, amber (yellow) in the middle, and green at the bottom. Each light is brightly illuminated against a black casing, with side visors to reduce glare. The design reflects universal traffic control standards used globally for regulating vehicle and pedestrian movement at intersections.

Commonly used in transportation safety guides, driver’s education materials, municipal websites, and traffic engineering resources. Matches user intent for understanding traffic signal functions, preparing for driving tests, or illustrating road safety content.