Ключевые слова: allow, amber, background, blue, car, change, city, color, colorful, concept, control, danger, digital, drive, equipment, forbid, go, green, light, nobody, numbers, object, pole, post, red, road, rush, safe, safety, semaphore, sequence, shiny, sign, signal, sky, space, speed, stop, street, symbol, traffic, trafficlight, transit, transport, transportation, urban, vehicles, warning, way, yellow,