Ключевые слова: access, airport, automatic, barrier, border, boundary, building, business, check, checkpoint, city, closed, control, customs, design, detector, door, electronic, entrance, entry, exit, gate, gateway, glass, hall, hallway, indicator, interior, metal, metro, office, pass, passage, passageway, passenger, people, prohibition, railway, scanner, security, skipping, station, stile, subway, technology, ticket, tourniquet, turnstile, urban, wicket,