The general requirements for reliable pavement prediction models are presented. Performance models are essential for efficient management of pavements. Experience has shown that they can best be derived from a data base of in-service pavements. The major requirements of a reliable model for predicting performance, herein defined as serviceability index and distress occurrence over time, are (a) an adequate data base built from in-service pavements, (b) the inclusion of all variables (including mechanistic variables) that significantly affect performance, and (c) an adequate functional form of the model that considers shape, nonlinearities, and interactions; meets boundary conditions; and provides reasonable sensitivity of variables. The model must also meet statistical criteria for precision (e.g., error of prediction, R squared and regression coefficients). (Author)

Media Info

  • Media Type: Print
  • Features: Figures; References;
  • Pagination: pp 25-31
  • Monograph Title: Application of pavement design models
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00331253
  • Record Type: Publication
  • ISBN: 0309031095
  • Files: TRIS, TRB
  • Created Date: Aug 15 1981 12:00AM