Cities around the world are beginning to make real progress with this ice-breaking sustainability approach in ever more interesting ways. It's not research or theory; it is policy and practice. Since 1994 the World Car Free Days Collaborative provides information, discussion space and support for those who care about sustainable mobility and aren't afraid to work at it.

Great idea! But be warned: it is not nearly as easy as it may appear at first glance. It is not that it is all that extraordinarly difficult to organize and do something along these lines. Indeed many have done so, all too often without a great deal of effort. But what a wasted opportunity!

Working through this Web site and its many extensions, we would like to put before you some of the reasons why we feel it is worthwhile taking the time and effort to take full advantage of any such opportunity. Getting it right is indeed a challenging task. It requires energy, preparation and many skills, not least of which a willingness to listen to and negotiate with many divergent and sometimes rather difficult groups and interests. But take courage! Others have managed to do a good job of this in the past, and surely you can too. With their and others' help, and your own incandescent energy and dedication to your community, your neighbors and all those who will follow you, this is going to work out quite nicely indeed.