Ключевые слова: background, barricade, barrier, block, boundary, city, closed, concrete, construction, control, danger, edge, empty, equipment, forbidden, highway, industry, light, line, no, prevent, prohibited, protection, reconstruction, red, road, roadsign, rough, safety, security, sign, signal, site, stop, street, stripe, striped, structure, symbol, texture, town, traffic, transportation, under, urban, wall, warning, way, white, work,