Roadway Extent and Use in Tennessee
| Year | Total Miles of Public Roads | Vehicle Miles Traveled by All Vehicles (Millions) | Vehicle Miles Traveled by Trucks (Millions) | Truck Percent of all Vehicle Miles Traveled |
| 1998 | 86,604 | 62,562 | 6,307 | 10% |
| 1999 | 87,259 | 64,755 | 5,819 | 9% |
| 2000 | 87,419 | 65,732 | 6,065 | 9% |
| 2001 | 87,825 | 67,632 | 5,986 | 9% |
| 2002 | 88,287 | 68,229 | 6,021 | 9% |
| 2003 | 88,518 | 69,154 | 8,312 | 12% |
| 2004 | 88,988 | 70,943 | 8,603 | 12% |
Source: Highway Statistics (1997-2004); U.S. Department of Transportation,
Federal Highway Administration, Office of Highway Policy Information.