America's so-called “love affair” with the automobile, although cliché, provides a vivid description of how attached we really are to driving. Public policy, and the historically overwhelming effect of auto industry lobbying, is only partly to blame for the endemic traffic jams and smog of the twentieth century. Bruce Schaller, a transportation consultant hired by New York City advocacy group Transportation Alternatives, recently demonstrated that urbanites with multiple transportation options still choose to commute by car for rational reasons of privacy, convenience, and speed. A chart o Opinion