Traffic Light Signal Diagram - Red, Yellow, Green Indicators Explained #1543408 (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 permitting movement. Each lamp is housed in a black casing with a gray visor to reduce glare and improve visibility in daylight. The design follows international conventions for road traffic control.

Used in transportation safety materials, driver’s manuals, traffic engineering documentation, and educational websites explaining road rules. Matches user intent for visual reference when learning or teaching traffic signal meanings.