Ключевые слова: accessibility, arranging, authority, automatic, boundary, cancel, city life, closed, commercial activity, contemporary, corridor, door, electronics industry, entering, entrance, entrance sign, exit sign, in a row, indoors, lighting equipment, machine, mode of transport, nobody, push button, railing, railroad station platform, security system, station, subway station, subway train, technology, ticket, ticket counter, train, transportation, turnstile, underground,