Ключевые слова: accident, alert, asphalt, attention, background, barrier, boundary, car, caution, concrete, cone, cones, construction, control, danger, detour, divert, equipment, fast, forbidden, hazard, highway, icon, illustration, limit, mark, marker, object, obstacle, orange, parking, plastic, protection, red, repair, road, safe, safety, security, sign, signal, stop, street, striped, symbol, traffic, transportation, warning, white, work,