Ключевые слова: art, background, button, city, communication, curve, design, elegant, flat, graphic, icon, illustration, image, internet, locomotive, logo, metro, modern, passenger, public, rail, railroad, railway, route, set, shape, shiny, sign, silhouette, simple, speed, station, subway, symbol, track, train, tram, transit, transportation, travel, trendy, underground, vehicle, vibrant, way, web, white,