Traffic Light Signal Diagram - Red, Yellow, Green Lights Explained #297958 (License: Personal Use)

This image depicts a conventional vertical traffic signal used at road intersections to regulate vehicle and pedestrian flow. The red light at the top indicates stop, the amber/yellow in the middle signals caution or impending change, and the green at the bottom authorizes movement. The housing is black with directional visors to reduce glare and improve visibility in daylight.

Used on transportation safety websites, driver’s education materials, traffic engineering pages, and municipal road signage guides; matches user intent for understanding traffic control devices or preparing for licensing exams.