Ключевые слова: access, accessibility, automatic, barrier, check, city, control, design, door, enter, entrance, entry, equipment, exit, gate, gateway, hand, insert, line, machine, man, metro, mobile, modern, mtr, office, open, pass, passage, permit, portal, public, rail, railway, row, security, speed, station, subway, system, technology, ticket, touching, train, transport, transportation, travel, turnstile, underground, urban,