Motorcycle Slide-to-Stop Tests: I.P.T.M Data Through 2006

As part of its motorcycle crash reconstruction classes, the Institute of Police Technology and Management (IPTM) conducts motorcycle drop tests. This article presents the results of 237 of these tests conducted between 1987 and 2006, breaking out the reported drag factor in a variety of ways. All tests included reported drop speed, slide distance and drag factor. Although all tests were conducted on a hard roadway surface the actual surfaces, as well as the drop technique, varied considerably. An analysis of the results suggest that the drag factor of motorcycles sliding and tumbling on roadways is somewhat variable, and does not seem to be related to the measured skidding drag factor reported for the test area. A comparison of these results with previously published data indicated that the overall ranges from the IPTM tests extended slightly above and below the previously reported values, but the average and standard deviations are generally similar. The spread of test results suggest that investigators should use relatively wide ranges when evaluating a motorcycle's pre-slide speed using energy conservation techniques.

  • Availability:
  • Authors:
    • Bartlett, Wade
    • Baxter, Al
    • Robar, Neil
  • Publication Date: 2007


  • English

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 18-20
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 01051774
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 18 2007 10:37PM