Traffic Light Signal Diagram - Red, Yellow, Green Lights Explained #256996 (License: Personal Use)

This image displays a standard vertical traffic light assembly with red (top), yellow (middle), and green (bottom) circular lamps, all illuminated at once-a configuration not used in real-world operation but common in diagrams to illustrate signal components. The housing is black with visors to reduce glare, and the lights have a glossy, realistic appearance against a white background. It serves as a symbolic or instructional representation rather than a depiction of active traffic control.

Typically used on transportation safety websites, driver’s education materials, traffic engineering pages, or government road signage guides. Matches user intent for understanding traffic signal basics, visual learning, or content illustrating traffic rules.