Traffic Light Signal Diagram - Red, Yellow, Green Meaning and Usage #3478331 (License: Personal Use)

This image displays a standard vertical traffic light configuration used globally for vehicular and pedestrian control. The top red light signals stop, the middle yellow indicates prepare to stop or proceed with caution, and the bottom green permits movement. Each lamp is a uniformly lit circle within a matte black rectangular housing, emphasizing high contrast for visibility.

Used in transportation safety guides, driver education materials, traffic engineering documentation, and municipal signage resources; matches user intent for understanding traffic signal rules or designing UI elements mimicking real-world signals.