Ключевые слова: abstract, arrow, background, banner, black, caution, cement, concept, danger, dead, dead end, design, detour, direction, end, finish, gray, highway, hopeless, icon, image, label, limit, message, no, outdoor, outside, paint, path, picture, pointless, points, problem, restricted, restriction, road, roadsign, safety, sign, signboard, square, stop, stucco wall, symbol, that way, this way, traffic, transportation, warning, way, white, wrong, yellow, yield,