Ключевые слова: against, background, barrier, blank, blue, bright, care, circle, city, clear, clouds, concept, construction, design, deter, empty, entrance, entry, europe, european, fencing, forbidden, graphic, green, icon, information, isolated, light, no, outdoor, prevent, prohibited, prohibition, red, road, round, safety, sign, sky, street, symbol, table, text, traffic, transportation, unauthorized, vehicular, view, warning, white,