Ключевые слова: alternative, background, bicycle, bicycles, bike, bike riding, bikes, chain, city, color, colored, colored lights, colorful, control, crossroad, cycle track, ecologic, go, information, lane, light, lot, old, parking, pedal, protection, red light, safe, safety, semaphore, signal, sport, stop, stopping, street, tire, town, traffic, traffic light, traffic sign, transit, transport, transportation, travel, type, urban, warning, way, wheel,