Our Nation's Highways: 2008
Figure 7-1. Interstate Truck Operating Speeds
One of many highway performance measures is travel speed. The Federal Highway Administration, Office of Freight Management and Operations, is working with the motor carrier and communications industries through American Trucking Research Institute to measure the speed and reliability of major truck routes based on the movements of more than 300,000 trucks. This map displays a snapshot of truck operating speeds that were observed at peak travel time (7:00–9:00 a.m. local time) during weekdays in May 2007.
Data Source: U.S. Department of Transportation, Federal Highway Administration, Office of Freight Management and Operations, Freight Performance Measures.