Ключевые слова: abstract, background, bar, barrier, black, blue, bollard, car, closed, control, direction, down, entrance, entry, equipment, gate, isolated, line, lot, mathematic, metal, open, outdoor, park, part, pattern, post, protection, red, road, round, safety, secure, security, shape, sign, steel, striped, symbol, system, traffic, transport, transportation, vehicle, view, way, white, yellow, zone,