Ключевые слова: art, artistic, background, billboard, blank, board, bus, city, colored, colorful, commercial, copy, design, empty, flat, illustration, information, isolated, norway, norwegian, oslo, outdoor, panel, passenger, placard, place, poster, public, road, roadside, route, scandinavia, schedule, sign, space, station, stop, street, town, transit, transport, transportation, travel, urban, waiting, white,