2.Public transit can reduce traffic congestion.
Transit has been on the slide for well more than half a century. Even though spending on public transportation has ballooned to more than seven times its 1960s levels, the percentage of people who use it to get to work fell 63 percent from 1960 to 2000 and now stands at just under 5 percent nationwide. Transit is also decreasing in Europe, down to 16 percent in 2000.
Like auto use, suburbanization is driven by wealth. Workers once left the fields to find better lives in the cities. Today more and more have decided that they can do so in the suburbs. Indeed, commuters are now increasingly likely to travel from one suburb to another or embark upon "reverse" commutes (from the city to the suburbs). Also, most American commuters (52 percent) do not go directly to and from work but stop along the way to pick up kids, drop off dry cleaning, buy a latte or complete some other errand.
We have to be realistic about what transit can accomplish. Suppose we could not only reverse transit's long slide but also triple the size of the nation's transit system and fill it with riders. Transportation guru Anthony Downs of the Brookings Institution notes that this enormous feat would be "extremely costly" and, even if it could be done, would not "notably reduce" rush-hour congestion, primarily because transit would continue to account for only a small percentage of commuting trips.
But public transit still has an important role. Millions of Americans rely on it as a primary means of transportation. Transit agencies should focus on serving those who need transit the most: the poor and the handicapped. They should also seek out the niches where they can be most useful, such as express bus service for commuters and high-volume local routes.
Many officials say we should reconfigure the landscape -- pack people in more tightly -- to make it fit better with a transit-oriented lifestyle. But that would mean increasing density in existing developments by bulldozing the low-density neighborhoods that countless families call home. Single-family houses, malls and shops would have to make way for a stacked-up style of living that most don't want. And even then the best-case scenario would be replicating New York, where only one in four commuters uses mass transit.