Ключевые слова: abstract, background, cable, city, concrete, construction, dark, deep, direction, empty, fast, future, hole, industrial, industry, light, line, metal, metro, metropolitan, modern, move, path, perspective, pipe, public, rail, railroad, railway, road, speed, station, steel, subway, subway tunnel, technology, track, train, transit, transport, transportation, travel, tube, tunnel, underground, urban, way,