OPTIMIZATION OF THE STRUCTURAL DESIGN OF ASPHALT PAVEMENTS

THE SYSTEMS APPROACH TO THE STRUCTURAL DESIGN OF ASPHALT PAVEMENTS DEVELOPS A PRACTICAL AND REALISTIC METHOD FOR THE OPTIMAL SECTION OF THE VARIOUS COMPONENTS THAT COMPRISE THE TOTAL CROSS-SECTION OF A FLEXIBLE PAVEMENT. THE DESIGN MODEL CONSISTS OF AN OBJECTIVE FUNCTION AND NINE CONSTRAINING EQUATIONS. THE TOTAL IN PLACE COST IS COMPLETELY DESCRIBED BY THE OBJECTIVE FUNCTION, AND A MINIMUM-COST SOLUTION IS OBTAINED FOR EACH COMBINATION OF MATERIAL COSTS, DESIGN REQUIREMENTS, AND ENVIRONMENTAL CONDITIONS. IN DEVELOPING PRACTICAL SOLUTIONS TO THE DESIGN MODEL, OPTIMAL FLEXIBLE PAVEMENTS ARE DESIGNED FOR CROSS-SECTIONS WITHOUT SUBBASE, CROSS-SECTIONS WITH SUBBASE THROUGH SHOULDERS, AND CROSS-SECTIONS WITH SUBBASE AND SUBDRAINS. THE DESIGN REQUIREMENTS FOR THE VARIOUS COMPONENTS ARE PREDICATED ON THE DESIGN PARAMETERS OF TRAFFIC CONDITIONS, SOIL SUPPORT VALUES, PAVEMENT MATERIAL CHARACTERISTICS, ENVIRONMENTAL EFFECTS, AND PAVEMENT PREFORMANCE REQUIREMENTS AND ON UNIT COSTS OF PAVEMENT COMPONENTS. SUBSTANTIAL COST SAVINGS RESULT IN THE SELECTION OF FLEXIBLE PAVEMENT SECTIONS BY THIS DESIGN PROCEDURE. /AUTHOR/

  • Supplemental Notes:
    • Rept 18, 25 PP
  • Corporate Authors:

    Purdue University/Indiana Department of Transportation JHRP

    Purdue University, School of Civil Engineering
    West Lafayette, IN  USA  47907-1284
  • Authors:
    • Oppenlander, J C
    • Hejal, S S
    • Burns, L D
  • Publication Date: 1971-9

Subject/Index Terms

Filing Info

  • Accession Number: 00205951
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jan 24 1972 12:00AM