Virginia Transportation Secretary Sean Connaughton says the solutions are slim for the area's traffic problem so "the approach is going to have to be one that makes better use of transportation networks that are already in place" (Secretary: Solutions slim for area traffic boon, November 14, 2011, by Adam Tuss, WTOP). He goes on to say "I don't have the physical ability to expand the system anymore." And he's right. So shouldn't localities, the region, State and Federal Governments put more emphasis and money into TDM (transportation demand management), which according to an increasing body of evidence would indeed make better use of the transportation network we have today? The answer of course is yes.
TDM is the most cost-effective way to deliver transportation benefits for the dollar, getting maximum use of existing infrastructure by shifting drivers into transit, carpools, vanpools, walking, biking, and avoiding trips through telework. Yet ironically, the economic downturn has resulted in a shortage of resources for TDM that could help to fill the gap when little infrastructure can be built to deal with growing congestion.
Over the coming weeks and months we'll highlight some TDM programs and services that research shows are having a big impact on reducing congestion and speculate on how expanding these programs and trying some new demand side innovations or low-cost infrastructure can have even more impact for our region and State. And visit our new think tank on the subject at MobilityLab.org.
Chris Hamilton is the Commuter ServicesTransportation Bureau Chief for Arlington County in the Department of Environmental Services and a biking/Metro commuter from the LeDroit Park neighborhood in Washington, D.C. Follow me at Twitter @ChrisRHamilton.