Traffic Light Signal Diagram - Red, Yellow, Green Lights Explained #1783870 (License: Personal Use)

This image displays a conventional vertical traffic signal used at road intersections worldwide, featuring three circular lenses-red on top, amber/yellow in the middle, and green at the bottom-mounted in a black housing with side visors to reduce glare. The glossy finish and precise geometry reflect modern traffic control design for high visibility and durability in all weather conditions. Each light follows standardized color coding and timing protocols to regulate vehicle and pedestrian flow safely.

Used on transportation safety pages, driver education resources, municipal traffic guides, and urban planning sites; matches user intent for understanding traffic signal meaning, rules of the road, or visual reference for signage design.