Ключевые слова: 40, background, black, car, circle, city, control, danger, day, drive, estate, europe, fast, fifty, german, highway, icon, information, isolated, isolation, law, limit, limitation, miles, number, object, police, post, prohibition, red, regulate, regulation, restrict, restriction, road, round, safe, safety, sign, slow, speed, street, symbol, traffic, transport, transportation, trucks, urban, white,