Counting Motorcycles

Motorcycle safety is receiving increased attention because of dramatic increases in motorcycle ridership and crashes. As transportation safety professionals increase their focus on motorcycle safety, questions about the quality of data related to state motorcycle miles traveled are arising. Off-the-shelf vehicle classification systems often are unable to capture motorcycle traffic accurately, and equipment vendors have traditionally not addressed this deficiency. The focus of this research is to evaluate and report on existing technical methods for estimating motorcycle vehicle miles traveled (VMT). This research summarizes current literature and research, and interviews with both collectors and users of motorcycle VMT estimates. It includes an evaluation of biases that may exist in counting technologies that are in current use and the identification of technologies that appear to be capable of producing more accurate counts of Class 1 vehicles. Recommendations are presented for the next steps to accomplish the mission of more accurate motorcycle VMT estimates to support safety analyses.

  • Record URL:
  • Supplemental Notes:
    • This report was requested by the AASHTO Standing Committee on Planning. It was prepared as part of NCHRP Project 08-36, Task 92, National Cooperative Highway Research Program, Transportation Research Board.
  • Corporate Authors:

    Cambridge Systematics, Incorporated

    4800 Hampden Lane
    Bethesda, MD  United States  20814
  • Authors:
    • Weinblatt, Herbert
    • Laing, Lorrie
    • Cordahi, Gustave
  • Publication Date: 2010-2


  • English

Media Info

  • Media Type: Web
  • Features: Appendices; Bibliography; Figures; Tables;
  • Pagination: 65p

Subject/Index Terms

Filing Info

  • Accession Number: 01152769
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Mar 18 2010 7:46AM