Ключевые слова: accident, architecture, background, barricade, barrier, black, boundary, car, city, column, construction, danger, design, element, enclosure, exterior, fence, flat, forbidden, indicates, outdoor, pillar, plastic, post, protection, reconstruction, red, restricts, road, safe, safety, security, shoulder, sign, street, striped, style, symbol, traffic, transportation, tree, urban, vintage, warning, way, white,