Ключевые слова: access, accessibility, airport, architecture, automatic, background, building, business, card, city, closed, contemporary, control, design, door, doorway, electronic, entering, entrance, entry, equipment, exit, gate, gateway, leaving, machine, metallic, metro, modern, office, open, people, public, reader, row, safety, security, sign, station, steel, subway, system, technology, ticket, train, transport, transportation, travel, turnstile, underground,