Transportation Key Web Links
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Modes Less Traveled—Bicycling and Walking to Work in the UnitedStates: 2008–2012 (U.S. Census Bureau)
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Framework for rebuilding infrastructure in America: Message from the President of the U.S.transmitting legislative outline for rebuilding infrastructure in America, 2018 (U.S. Government Publishing Office)
U.S. Gross Domestic Product by Major Spending Category: 2011
