Ключевые слова: background, bars, build, city, concrete, construct, constructing, construction, development, engineering, equipment, hard, industry, metal, metro, modern, new, operating, perspective, public, rail, railroad, railway, repair, road, russia, site, sleeper, station, steel, steelwork, subway, symmetry, technology, town, track, train, tram, tramway, transport, transportation, travel, ukraine, unfinished, urban, way, work,