Ключевые слова: background, blue, car, caution, city, cityscape, color, control, cross, crossing, crossroad, danger, direction, driver, go, green, green light, highway, intersection, junction, light, notification, pedestrian, red, red light, regulate, road, route, safety, security, semaphore, sign, signal, speed, stop, stop sign, stoplight, street, symbol, town, traffic, traffic light, transport, transportation, travel, urban, warning, way, yellow,