A few weeks ago the New York Times ran an excellent article about Vauben, a German town without cars. I meant to mention it then and was reminded to do so when The Independent ran an similar piece last week.
From the NYT:
Street parking, driveways and home garages are generally forbidden in this experimental new district on the outskirts of Freiburg, near the French and Swiss borders. Vauban’s streets are completely “car-free” — except the main thoroughfare, where the tram to downtown Freiburg runs, and a few streets on one edge of the community. Car ownership is allowed, but there are only two places to park — large garages at the edge of the development, where a car-owner buys a space, for $40,000, along with a home.Pretty cool! Read the articles for details, but the idea that so many families are attracted to a car free, and bike friendly, place is very encouraging.
Update: In the comments Marc shared this study which I found very interesting.