Ключевые слова: advice, ahead, alert, allow, approaching, arrow, attention, background, bend, beware, black, board, careful, caution, communication, curve, danger, dangerous, diamond, direction, drive, guide, hazard, highway, icon, illustration, information, isolated, left, road, roadsign, safety, sign, signage, signpost, slow, street, symbol, traffic, transport, transportation, turn, u turn, warning, way, white, yellow,