A red light camera is a type of traffic enforcement camera that photographs a vehicle that has entered an intersection after the traffic signal controlling the intersection has turned red. By automatically photographing vehicles that run red lights, the photo is evidence that assists authorities in their enforcement of traffic laws. Generally the camera is triggered when a vehicle enters the intersection after the traffic signal has turned red.
A red-light camera in use in Beaverton, Oregon
An Axsis RLC-300 red-light camera in Flower Hill, New York
A set of pictures taken by a red light camera in Luannan County, China, the black car in the pictures ran the red light
Red light camera experiment in Gif-sur-Yvette
Traffic lights, traffic signals, or stoplights – also known as robots in South Africa and Namibia – are signalling devices positioned at road intersections, pedestrian crossings, and other locations in order to control the flow of traffic.
An LED 50-watt traffic light in Portsmouth, United Kingdom
Traffic lights can have several additional lights for filter turns or bus lanes.
Horizontally-mounted signals in Japan
A traffic signal in Halifax, Nova Scotia, with specially shaped lights to assist people with colour blindness