Ключевые слова: abstract, area, background, barricade, barrier, blocked, blocker, blurred, bollard, car, caution, chrome, closeup, control, danger, entrance, fence, line, metal, metallic, nobody, object, outside, park, pavement, pedestrian, pillar, pole, poller, post, prevention, protect, public, road, safety, security, shiny, sidewalk, sign, silver, stainless, stainless steel, street, symbol, traffic, transport, transportation, urban,