Ключевые слова: abstract, accepting, access, auto, background, blue, building, car, caution, city, color, colorful, control, downtown, drive, driveway, electric, equipment, go, green, greenlight, guidance, illuminated, lamp, light, marks, midtown, move on, night, nobody, office building, race, road, route, safe, safety, security, semaphore, sign, signal, speed, street, trace, track, traffic, transport, transportation, urban, warning, way,