Ключевые слова: attention, background, ban, caution, circle, concept, danger, design, disallowed, do, enter, entry, forbid, forbidden, graphic, hazard, icon, illustration, information, isolated, mark, no, not, notice, prevent, prohibit, prohibited, prohibition, prohibitive, red, restrict, restricted, restriction, restrictive, road, roadsign, round, safety, sign, signal, stop, symbol, traffic, transport, transportation, warning, way, white, wrong,