Ключевые слова: 40s, adult, african, american, black, book, business, businessman, carriage, caucasian, class, communication, commute, commuter, commuting, computer, digital, e, first, forties, horizontal, journey, laptop, male, man, men, mobile, modern, one, online, passenger, people, person, railroad, railway, sitting, speed, suit, tablet, technology, train, transport, transportation, travel, traveler, using, window, wireless, work, young,