Ключевые слова: allow, amber, background, blue, car, change, check, city, cloud, color, colorful, concept, control, cross, crossroad, drive, empty, environment, equipment, go, green, hanging, information, junction, light, object, protection, ready, red, right, safe, semaphore, set, sign, signal, sky, space, street, traffic, trafficlight, trafic, transport, transportation, travel, turn, type, urban, warning, way, white,