Ключевые слова: advise, advisory, background, caution, communication, concept, danger, direction, drive, empty, guide, guide post, guidepost, highway, information, informative, isolated, limitation, message, metal, park, recommendation, road, road sign, roadsign, route, rural road, safety, sign, signboard, signpost, sky, speed, speed limit, street, symbol, traffic, transport, transportation, travel, vintage, warning, way, white,