A vertical traffic light is a signaling device used to control vehicular and pedestrian traffic at intersections. It typically consists of three colored lights—red, yellow/amber, and green—arranged vertically in a top-down sequence. The red light indicates "stop," the yellow/amber light warns of an impending change from green to red, and the green light signifies that it is safe to proceed. The vertical traffic light plays a crucial role in maintaining orderly and safe traffic flow on roads. 🚦