Ключевые слова: accident, arrow, background, beware, blank, blue, bus, caution, cloud, danger, day, direction, directional, drive, empty, hazard, highway, horizontal, information, interstate, journey, message, metal, nature, outdoors, prevention, road, roadside, roadsign, route, safety, secure, sign, signal, signpost, stop, street, summer, symbol, traffic, transport, transportation, travel, us, vehicle, warning, way, white,