Ключевые слова: abstract, background, bicycle, bike, bike lane, biking, car, city, color, commuting, cycle, cycling, cyclist, danger, day, electric, europe, forbidden, germany, green, light, man, meaning, normal, outdoors, person, red, ride, road, safety, semaphore, sign, signal, snow, stop, street, summer, symbol, traffic, traffic light, traffic lights, transport, transportation, urban, vehicle, walk, warning, way, winter,