Traffic Light Signal Diagram - Red, Yellow, Green Lights Explained #1234671 (License: Personal Use)

This image displays a classic vertical traffic signal with three circular lenses: red at the top indicating stop, amber/yellow in the middle signaling caution or prepare to stop, and green at the bottom permitting movement. Each light is brightly lit with a glossy, realistic glow against a dark gray housing, emphasizing visibility and clarity for road users. The design follows international standards for traffic control devices.

Used on transportation safety pages, driver education resources, traffic regulation guides, and municipal websites; serves users seeking to understand traffic signal meanings or visual references for signage compliance.