Traffic Light Signal Diagram - Red, Yellow, Green Indicators Explained #1543385 (License: Personal Use)

This illustration depicts a conventional vertical traffic signal used at road intersections, featuring three circular lenses: red at the top, amber/yellow in the middle, and green at the bottom. Each light is housed in a black casing with side visors to reduce glare and improve visibility. The design follows international standards for traffic control, ensuring universal recognition and safety compliance.

Used on transportation safety pages, driver education materials, municipal traffic guides, and urban planning resources; matches user intent for understanding traffic rules, visual learning, or web content about road infrastructure.