Ключевые слова: background, barricade, barrier, beacon, blue sky, building, caution, city, construction, danger, dangerous, detour, direction, drive, emergency, equipment, flash, flasher, frame, germany, guard, hazard, highway, isolated, lamp, light, long, measure, orange, outdoors, red, repair, road, safe, safety, security, sign, signal, street, symbol, traffic, transportation, urban, warn, warning, way, white, work, workers, yellow,