Ключевые слова: alarm, alternative, aspect, bicycle, bike, bycicle, car, chain, change, city, color, colorful, control, cross, cycle, cycling, danger, environment, evening, germany, go, green, lane, light, lot, netherlands, night, no, parking, ratio, ready, red, riding, semaphore, sign, sport, stop, street, tire, traffic, trafficlight, transport, transportation, travel, urban, warning, wheel, yellow,