4 The family automobile has helped to bring people of the United States two other things-two things which can seldom exist at the same time: community life and the privilege of privacy. In the early days of industrialization, factory workers lived close together, within walking distance of their jobs. As industries grew, more and more working class families lived together in crowded conditions. But with the construction of longer and better roads and with the greater availability of automobiles and other means of rapid transportation, it was no longer to live close to the factory. New residential areas, suburbs, grew up outside the big cities and, increasingly, industry and commerce concentrated in the cities. Every morning, millions of Americans dive their automobiles to work in the city, sometimes a distance of around 100 kilometers. At night they drive home to houses and apartments outside the cities, surrounded by trees and lawns.
5 Automobiles and other methods of rapid transportation are also changing American industry. Instead of continuing to concentrate in the big cities, industry is building factories in previously undeveloped areas. Because the means of transportation are available, it is not hard to transport people as well as materials to the places where they are needed. This factor was largely responsible for the remarkable growth of the Pacific Coast during and after World WarⅡ. As industries built new factories in the Far West, Americans from all over the country moved west to take advantage of new jobs and new opportunities.