Ключевые слова: background, bicycle, bike, bikeway, city, color, colorful, concept, control, cycle, danger, day, electric, front, go, green, lamp, lane, light, no, nobody, object, outdoors, plastic, red, red light, road, safe, safety, semaphore, sign, signal, single, sky, stop, stoplight, street, symbol, traffic, traffic light, transport, transportation, travel, urban, view, walk, warning, way, wheel, yellow,