Ключевые слова: background, barricade, barrier, beam, block, bright, caution, circles, city, closed, construction, danger, dangerous, equipment, fence, flash, glow, hazard, highway, industry, isolated, lamp, lantern, lens, light, lights, orange, pattern, plastic, red, repair, road, roadside, safe, safety, security, shining, sign, signal, site, stop, street, symbol, temporary, traffic, transportation, warning, way, work,