Figure 2-10 Average Number of Vehicles per Household by Number of Household Drivers: 2009
NOTE: The black diagonal line plots a one-to-one ratio of vehicles to drivers. The National Household Travel Survey was last completed in 2009. The 2016 National Household Travel Survey is currently underway, and results will be released in 2018.
SOURCE: U.S. Department of Transportation, Federal Highway Administration, 2009 National Household Travel Survey, available at nhts.ornl.gov as of February 2016.