The Calspan Tire Research Facility (TIRF) as a laboratory apparatus for testing truck tires is described and typical truck tire test results are presented. Test results are shown for a combined lateral slip (slip angle) and longitudinal slip (braking) operations of a 10.00 x 20 truck tire on a dry road surface. The measured lateral and longitudinal forces and aligning torques are used to portray the "traction field" for this tire. The aligning torque behavior possibly has important implications on the handling characteristics of a truck under heavy braking. Wet road cornering and braking characteristics of three different 10.00 x 20 truck tires measured on TIRF show significant differences. It is noted that wet road handling and braking performance of trucks (as well as passenger cars) has received very little attention in the National Highway Traffic Safety Program in spite of the fact that the majority of skidding accidents occur on wet roads. The presented results show the practicability of wet-road testing of truck tires on TIRF.

  • Supplemental Notes:
    • This report was presented at a symposium in Ann Arbor, on Commercial Vehicle Braking and Hardling.
  • Corporate Authors:

    Highway Safety Research Institute

    Huron Parkway and Baxter Road
    Ann Arbor, MI  United States  48109
  • Authors:
    • Bird, K D
    • Schuring, D J
  • Publication Date: 1975

Media Info

  • Features: Figures; Photos; References; Tables;
  • Pagination: 37 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00126876
  • Record Type: Publication
  • Source Agency: Highway Safety Research Institute
  • Report/Paper Numbers: Conf Paper
  • Files: TRIS
  • Created Date: Jan 14 1976 12:00AM