U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
Our Nation's Highways: 2008
Figure 3-1. Numbers of Registered Vehicles-Automobiles, Trucks, and Buses, 1970-2006
The number of registered vehicles in the country has been growing since recordkeeping started, and the number of registered vehicles as compared to the number of licensed drivers has also been growing. Before 1975, the country had roughly 1.0 vehicle per licensed driver. Since then, the ownership of vehicles on a licensed driver basis has been increasing at an accelerating rate, reaching 1.2 at the end of 2006.
Data represented in the inset chart
Data Source: U.S. Department of Transportation, Federal Highway Administration, Office of Highway Policy Information, Highway Statistics.