Ключевые слова: background, black, caution, closed, concept, danger, dead, design, detour, diamond, end, finish, highway, hopeless, icon, illustration, image, isolated, label, law, limit, message, no, orange, problem, restricted, restriction, road, roadsign, safety, sign, signage, signal, signboard, simple, square, stop, street, symbol, traffic, transportation, vivid, warning, way, white, wrong, yellow, yield,