Figure 6-1 Value Added by Transportation Mode: 1997
Thursday, August 8, 2013
SOURCE: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics,Transportation Satellite Accounts: A Look at Transportation’s Role in the Economy (Washington, DC: 2011). Available at https://www.bts.dot.gov/archive/publications/transportation_satellite_accounts/index as of February 2013.