Traffic lights

Keywords:

signals, lights, red, traffic, semaphore, stop, city, transportation, car, street, travel, railroad, road, law, isolated, cross, trafficlights, on, green, stop-light, gantry, urban, sign, permit, stoplight, pedestrian, winkie, security, transit, obey, automobile, transport, vehicles, safety, drive, lit, railway, control, sky, go, auto, crossroad, allow, post, pole, pillar, column, water, wave, reflection, mirror,