traffic_light
A traffic light (also known as a traffic signal or stoplight) is a signaling device positioned at road_intersections, crosswalks, and other locations in order to control the flow of vehicular traffic. Traffic lights consist normally of three light signals of the colors red, yellow, and green/blue arranged vertically or horizontally in that order. While this is standardized internationally, variations may exist.
See also
* Pedestrian lights
* Road sign
* Road
* Street
Aliases: none