Traffic Light Signal Diagram - Red, Yellow, Green Meaning and Usage #1888021 (License: Personal Use)

This image depicts a standard vertical traffic signal assembly with three circular lamps: red at the top indicating stop, amber (yellow) in the center signaling caution or prepare to stop, and green at the bottom authorizing movement. The housing is bright yellow with side visors to enhance visibility and reduce glare, typical of roadside installations worldwide. The clean, schematic style makes it ideal for instructional or regulatory signage contexts.

Used in driver education materials, traffic safety websites, municipal transportation guides, and legal documentation to illustrate signal meanings. Matches user intent for learning traffic rules, preparing for driving tests, or designing road safety content.