Ключевые слова: against traffic, asphalt, automobile, berlin, biker, car, carbon monoxide, caution, city, city life, considerate, energy, engstelle, exhaust, fence, fuzzy, lock, motion, obstacle, people, pollutants, professional traffic, red, road, road traffic regulations, roadway, roadway marking, safe, safety, signal, signs, site, storage, street signs, stress, traffic, traffic regulations, transportation, travel, unsignalized, vehicle transport, warning bark, white,