Ключевые слова: alert, attention, board, button, car, circle, commercial, concept, construction, control, crossing, danger, design, district, drive, east, field, forbidden, guide, hazard, icon, indicator, industry, information, isolated, location, metal, notify, realistic, road, roadside, roadsign, security, signal, signpost, sing, spain, symbol, town, traffic, transport, transportation, travel, truck, vehicle, visual, warning, way, welcome, white,