Ключевые слова: accident, ahead, alert, asphalt, boundary, car, caution, color, concept, cone, construction, danger, driver, equipment, fluorescent, hazard, highway, horizontal, icon, lined, nobody, orange, outdoors, pedestrians, plastic, pylons, red, reflective, repair, road, safe, safety, saturated, school, sign, signal, street, stripe, striped, symbol, synthetic, traffic, transportation, urban, venue, vibrant, warning, way, white, work,