Ключевые слова: aged, alte, background, blue, caution, city, copy space, crossing, danger, detail, do not cross, do not enter, do not enter sign, environment, equipment, europe, italy, landscape, light, metal, natures, no, no entrance, no entrance signal, parking, pesaro, railroad, red, road, road sign, rounded sign, rounded signal, rust, safety, sky, space for text, stop, street, street light, street signal, sun, symbol, traffic sign, traffic signal, transportation, travel, tree, urban, warning, white,