THE ADEQUACY OF LINEAR MODELS IN TREAD LIFE TESTING

This paper examines the assumption of linearity in the application of regression techniques to tread wear data. Data from several sources provide evidence that tread wear is only approximately linear. Linear models appear to be adequate after a sufficient break-in period whose length depends on the nature of the test. When linear models are used to compare the tread life potential of a test tire to that of a control tire, both tires must have had the same testing exposure or else the rate of wear may be overestimated.

• Corporate Authors:

  American Society for Testing and Materials (ASTM)

  100 Barr Harbor Drive, P.O. Box C700
  West Conshohocken, PA  United States  19428-2957
• Authors:
  • Wright, C T
• Publication Date: 1979-1

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 14-30
• Serial:
  • Tire Science and Technology
  • Volume: 7
  • Issue Number: 1-2

Subject/Index Terms

• TRT Terms: Durability tests; Nonlinear systems; Regression analysis; Tire treads; Tires; Wear
• Subject Areas: Data and Information Technology; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00349819
• Record Type: Publication
• Source Agency: National Highway Traffic Safety Administration
• Report/Paper Numbers: HS-032 302
• Files: HSL, USDOT
• Created Date: May 28 1982 12:00AM