Ключевые слова: alert, auto, background, block, car, caution, circle, concept, danger, direction, driving, end, enter, entrance, entry, forbidden, graphic, halt, icon, illustration, isolated, no, not, order, pause, police, problems, prohibition, protest, rectangle, red, road, roadsign, round, safety, sign, signal, speed, steel, stop, stopsign, street, symbol, technology, traffic, transport, transportation, truck, warning, white,