FORECASTING SERVICEABILITY LOSS OF FLEXIBLE PAVEMENTS

Pavement performance data collected in Research Project 2-8-62-32, 'Extension of AASHO Road Test Results,' are analyzed in this study. Serviceability loss of three flexible pavement types due to fatigue, swelling, shrinkage and thermal cracking are correlated to many environmental, traffic, time, design and construction material variables. A 'two-step constrained select regression procedure' is developed to examine the effect that each variable has on pavement serviceability loss. Stochastic reliability concepts are applied to evaluate the expected value and variance of the serviceability loss.

• Record URL:
  • https://library.ctr.utexas.edu/hostedpdfs/tti/57-1F.pdf
• Supplemental Notes:
  • Prepared in cooperation with Federal Highway Administration, Washington, D.C.
• Corporate Authors:

  Texas Transportation Institute

  Texas A&M University System, 1600 E Lamar Boulevard
  Arlington, TX  United States  76011

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Lu, D Y
  • Lytton, R L
  • Moore, W M
• Publication Date: 1974-11

Media Info

• Pagination: 90 p.

Subject/Index Terms

• TRT Terms: Cracking; Flexible pavements; Forecasting; Fracture mechanics; Mechanical fatigue; Pavement performance; Regression analysis; Service life; Serviceability; Shrinkage; Stochastic processes; Swelling; Thermal degradation; Thermal stresses
• Old TRIS Terms: Thermal fracture
• Subject Areas: Data and Information Technology; Design; Highways; Pavements;

Filing Info

• Accession Number: 00092996
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: TTI-2-8-74-57-1F Final Rpt.
• Files: NTIS, TRIS, USDOT
• Created Date: Nov 18 1976 12:00AM