Research Proposal

Fleet Unit Distributions


To identify fleet unit distributions for class 1-8 (>1000, 500-999, less than 499) by state.

Early Findings

2018 Distribution of U.S. Fleet Vehicles in Service

Cars (thousands)

Trucks (<19,501 in gross vehicle weight; in thousands)

2017 Federal Government Vehicles: 640,918

  • Light trucks (<8,500 lbs. GVW): 273,650
  • Cars and other passenger vehicles: 225,981
  • Medium trucks (8,500–26,000 lbs. GVW): 99,079
  • Heavy trucks (>26,000 lbs. GVW): 33,585
  • Buses and ambulances: 8,623

2017 Federal Government Vehicle Inventory

Passenger Vehicles

Trucks and other vehicles


Additional Insights

  • "In 2017 the average fuel economy for the U.S. car fleet (all cars on the road) was 27.3 mpg."
  • "In 2017 the average fuel economy for the U.S. light truck fleet (all light trucks on the road) was 19.7 mpg."


  • For the initial hour, we tried identifying as much of the requested information as possible. We were able to find a distribution of fleet units in general, in terms of total fleets by either government, commercial, or rental use.
  • We tried finding data for distribution by state but we were only able to find data from 2002. We came across the 2002 Economic Census Vehicle Inventory and Use Survey (VIUS), which included some geographic data on the physical and operational characteristics of the U.S. truck population. Its primary goal was to produce national and state-level estimates of the total number of U.S. light, medium, and heavy trucks.
  • The VIUS survey was discontinued after 2002, however, the Bureau of Transportation Statistics (BTS) and the U.S. Census Bureau are planning to conduct another "survey in 2022 to obtain data on vehicle activity for the calendar year 2021." A link to the 2002 VIUS report can be found here.
  • The figures listed above were from the 2020 Transportation Energy Data Book.
  • In the course of our research, we were able to identify some insights on private fleets and the California Vehicle Inventory and Use Survey (CA-VIUS).
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Prepared By
Mik W.
510 assignments | 5.0