Figure 3-2: National Highway System Estimated Peak Period Congestion: 1998
As highway traffic increases over the next twenty years, the conditions that truckers will encounter on the roads are expected to worsen considerably.
![See paragraph above for explanation of Figure 3-2.](images/fig3_2.gif)
Source: U.S. Department of Transportation, Federal Highway Administration, Office of Freight Management and Operations, Freight Analysis Framework.