Ключевые слова: arrow, background, billboard, black, blank, board, bridge, bus, caution, computer, concept, danger, design, direction, directional, drive, empty, frame, green, highway, house, icon, illustration, information, isolated, mandatory, metal, motorcycle, notice, panel, pedestrian, post, road, roundabout, safety, set, sign, signpost, silhouette, street, symbol, traffic, transportation, truck, urban, warning, way, white, yellow,