(p. 92) America is a car culture and has been for almost a century, the phrase “traffic jam” dating to 1910, meaning we’re stuck with car culture for the time being. In the United States, the number of trips taken on public transportation has since 1998 been rising more rapidly than trips taken in cars. But public transportation nevertheless cannot be a cure-all for traffic congestion, since only a total of 1 percent of all U.S. trips occur on public transit. Double the share, which would require notable effort and capital expense, and it’s still only 2 percent. A car culture with a rising population and rising prosperity has little choice but to keep investing in roads and parking.
Easterbrook, Gregg. The Progress Paradox: How Life Gets Better While People Feel Worse. Paperback ed. New York: Random House, 2004.