Here's a quote from Secretary Ray LaHood on "livable communities", from the October issue of the AARP Bulletin:
Q. You talk a lot about livable communities. How would you describe one?
A. It’s a community where if people don’t want an automobile, they don’t have to have one. A community where you can walk to work, your doctor’s appointment, pharmacy or grocery store. Or you could take light rail, a bus or ride a bike.
Finally! A Secretary of Transportation that understands it's the Department of Transportation, not the Department of Highways. And I like his approach: don't force people out of their cars -- entice them. Create communities with a range of transportation choices and let people pick the ones that work for them. Cars, for some. Bicycles, for others. And for some, a comfortable pair of shoes.