Figure 3-2. Highway Vehicle Miles Traveled by Vehicle Type: 2005
Despite doubling over the past two decades, truck traffic remains a relatively small share of highway traffic as a whole. In 2005, commercial trucks accounted for about 8 percent of highway vmt. Approximately two-thirds of commercial truck travel is by truck tractors hauling semitrailers and by other combinations, while the remaining third is by single unit trucks with 6 or more tires.
|Truck, single-unit 2-axle 6-tire or more||79,174|
Key: R = revised
Note: “Other” comprises bus and motorcyle. Light trucks include sport utility vehicles, minivans, and pickup trucks.
Source: U.S. Department of Transportation, Federal Highway Administration, Highway Statistics (Washington, DC: Annual issues), table VM-1, available at www.fhwa.dot.gov/policy/ohpi/hss/index.cfm as of June 3, 2007.
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