SOURCE: U.S. Department of Transportation, Federal Highway Administration, 2009 National Household Travel Survey, Online Analysis Tool. Available at http://nhts.ornl.gov/ as of April 2016.
Updated: Saturday, May 20, 2017
SOURCE: U.S. Department of Transportation, Federal Highway Administration, 2009 National Household Travel Survey, Online Analysis Tool. Available at http://nhts.ornl.gov/ as of April 2016.