Ключевые слова: ahead, alert, arrow, asphalt, bend, beware, black, blue, caution, curve, danger, direct, direction, drive, guide, hazard, hazardous, highway, indicator, landscape, left, message, mountains, narrow, outdoors, outside, park, pavement, right, road, roadsign, safety, sharp, sign, signage, sky, slow, street, symbol, traffic, transport, transportation, travel, trip, turn, twist, visual, warn, way, yellow,