Traffic Light Signal Diagram - Red, Amber, Green Indicators Explained #1288933 (License: Personal Use)

This digital illustration depicts a standard vertical traffic light with three circular lamps: red at the top, amber in the middle, and green at the bottom, each encased in a metallic housing with reflective side panels. The lights are rendered with glossy highlights and subtle gradients to simulate realistic illumination against a transparent background. The design follows international conventions used in road traffic control systems.

Used in transportation safety guides, driver’s education materials, traffic regulation websites, and municipal signage documentation; matches user intent for understanding traffic signal meanings or sourcing illustrative assets for road safety content.