Preliminary Findings from the California Vehicle Inventory Survey

The California Vehicle Inventory and Use Survey (CA-VIUS) is a large-scale statewide commercial vehicle survey that is collecting truck usage data from over 10,000 trucks that operate on California’s roadways. It will replace the 2002 National VIUS in support of planning, modeling, and air quality analysis studies in California. The survey effort has already collected 8,000 surveys and expects to collect several thousand more surveys before the data collection process is complete. Implementing a survey of this scale is not easy and requires careful planning, flexible decision-making, and continuous monitoring. This paper describes some of the challenges seen during survey implementation and describes the approach undertaken by the team to address the roadblocks. The paper also compares the trucks recruited in the 2017 CA-VIUS survey with trucks from the California portion of the 2002 National VIUS to depict the more robust data collection plan undertaken through the 2017 CA-VIUS. Finally, the paper also describes some preliminary results from the survey to document the value of the CA-VIUS effort.

  • Supplemental Notes:
    • This paper was sponsored by TRB committee ABJ90 Standing Committee on Freight Transportation Data.
  • Authors:
    • Komanduri, Anurag
    • Gu, Zhuyun
    • Khan, Mobashwir
    • Stecher, Chery
    • Mak, Ryan
    • McCourt, Mark
    • Brogan, James
  • Conference:
  • Date: 2018


  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; References; Tables;
  • Pagination: 18p

Subject/Index Terms

Filing Info

  • Accession Number: 01661229
  • Record Type: Publication
  • Report/Paper Numbers: 18-02215
  • Files: TRIS, TRB, ATRI
  • Created Date: Jan 8 2018 10:32AM