Traffic Light Signal Diagram - Red, Yellow, Green Lights Explained #1841338 (License: Personal Use)

This high-resolution illustration depicts a classic vertical traffic signal with three circular lamps: red at the top, amber/yellow in the middle, and green at the bottom, all housed in a durable gray metal casing with side visors to reduce glare. The lights are rendered with realistic gloss and depth, simulating LED illumination under daylight conditions. The design follows international standards used in North America and many other regions for vehicular traffic control.

Used on transportation safety websites, driver’s education materials, municipal traffic guides, and urban planning resources; targets users seeking visual reference for traffic signal operation, road rules, or signage compliance.