Ключевые слова: app, application, arrival, background, banner, button, caution, communication, concept, crossing, crossroad, danger, design, elegant, element, flat, graphic, group, icon, illustration, image, internet, isolated, label, layout, line, locomotive, metro, modern, nobody, object, objects, outline, pictogram, rail, railroad, railway, road, shape, station, subway, symbol, track, train, transport, transportation, travel, vibrant, white,