Ключевые слова: alert, asphalt, attention, barrier, boundary, build, caution, city, closed, damage, danger, driveway, equipment, fence, forbidden, heavy, highway, hole, industrial, industry, lane, machine, machinery, maintenance, no people, obstacle, plastic, protection, red, road, safety, security, signs, site, stop, street, striped, traffic, transport, transportation, truck, urban, vehicle, warning, white, work,