Yellow Traffic Light Signal

A close-up view of a street traffic light showing only the yellow signal illuminated. The dark casing features vents on either side of the light sections, with the top red and bottom blue/green lights currently off. This yellow light indicates a warning to drivers, typically signifying that the signal is about to change from green to red, or from red to green, depending on the specific traffic sequence.

traffic light - yellow light - signal - caution - road safety - transportation