If losing weight is one of your New Year's resolutions, you may want to consider moving. According to Reid Ewing, a research professor at the National Center for Smart Growth, where you live may have a lot to do with how much you weigh. Reid's study of sprawl and obesity in American youth appeared in the December 2006 issue of American Journal of Preventive Medicine.

Also with us is Todd Litman, founder and executive director of the Victoria Transport Policy Institute, who challenges all conventional wisdom on how we ought to be getting around our cities. Todd is author of the Online TDM Encyclopedia, a comprehensive Internet resource for identifying and evaluating mobility management strategies.

We begin the new year with some new thinking...this week on Smart City.