Assertion: traffic light | /r/CapableOf | signal device
Facets:
Source sentences:
text: Traffic lights, traffic signals or robots are signalling devices positioned at road intersections, pedestrian crossings, and other locations to control flows of traffic.
text: Traffic lights, traffic signals or robots are signalling devices positioned at road intersections, pedestrian crossings, and other locations to control flows of traffic.
text: Traffic lights, also known as traffic signals, traffic lamps, signal lights, robots in South Africa and, in the past, semaphores, are signalling devices positioned at road intersections, pedestrian crossings and other locations to control competing flows of traffic.