Traffic Light Signal States Explained - Visual Guide #1234667 (License: Personal Use)

This image displays five standard vertical traffic signals, each mounted on a metallic pole against a clean white background. The lights illustrate key operational states: all-red, red+amber (pre-green), amber-only, green-only, and red+green (malfunction or special use). Each lens features a halftone dot pattern for realistic illumination effect and depth.

Used in transportation safety guides, driver education materials, traffic engineering documentation, and municipal websites to explain signal logic and compliance. Matches user intent for learning traffic rules, troubleshooting signal issues, or designing UI/UX for navigation apps.