Ключевые слова: accident, armco, asphalt, automobile, barricade, barrier, black, bridge, car, carriageway, central, city, construction, control, crash, defense, divide, drive, dual, fence, freeway, galvanized, guard, guardrail, guardrails, hard, highway, industrial, interstate, median, metal, motorway, obstacle, progress, protect, risk, river, road, roadside, roadway, safety, separate, steel, stiffness, stop, street, traffic, vehicles, white, zone,