Ключевые слова: automatic, bus, buy, card, cashless, check, city, commuter, composted, display, electronic, fare, female, hand, hold, indoors, inside, intercity, interior, machine, one, paper, pass, passenger, payment, person, print, public, put, reader, screen, smart, subway, technology, ticket, train, tram, tramway, transport, transportation, travel, trolley, trolleybus, validate, validation, validator, vehicle, way, wireless, woman,