Ключевые слова: blank, blur, board, business, busy, carriage, china, city, commercial, commute, commuter, corridor, crowd, empty, fast, hall, helgidinson, indoor, inside, interior, line, locomotive, metro, modern, motion, mtr, passage, passenger, people, platform, public, rail, railroad, railway, rapid, speed, station, street, subway, technology, track, train, transit, transport, transportation, travel, tube, tunnel, underground, urban, way,