The State of Traffic in the U.S.
Millions of Americans will brave crowded highways this holiday weekend to visit friends and family. Traffic today and what's being done to ease congestion and improve the nation's roads and highways.
Deputy Secretary of Transportation. He served as Secretary of the Maryland Dept. of Transportation from 2007 to 2009.
Fellow, Metropolitan Policy Program, The Brookings Institution
writes about design, technology, science, and culture for 'Wired,' 'Slate,' 'The New York Times,' and other publications. He is the author of "Traffic - Why We Drive the Way We Do (and What It Says About Us)."