Vehicle Inventory and Use Survey (VIUS)
The VIUS has been the principal data source on the physical and operational characteristics of the United States truck population. Its primary goal is to gain an understanding nationally and statewide on how trucks are being utilized for various goods transport. The first survey was conducted in 1963. It was then conducted every five years beginning in 1967 through 2002. Please see the Historical Data section below for access to this data.