Ключевые слова: architecture, art, background, black, board, building, circle, city, color, concrete, decoration, design, direction, drive, font, highway, icon, illustration, instruction, isolated, limit, nine, number, object, red, retro, road, round, safety, sign, signal, sky, slow, speed, street, symbol, traffic, transport, transportation, type, urban, vintage, warning, way, white,