OPTIMAL SELECTION OF FLEXIBLE PAVEMENT COMPONENTS

THE PURPOSE OF THIS SYSTEMS ANALYSIS IS TO DEVELOP A RATIONAL METHOD FOR THE OPTIMAL SELECTION OF THE THICKNESSES OF THE VARIOUS PAVEMENT COMPONENTS. THE DESIGN MODEL CONSISTS OF AN OBJECTIVE FUNCTION AND NINE CONSTRAINT EQUATIONS. THE TOTAL COST OF THE PAVEMENT SYSTEM IS QUANTITATIVELY DESCRIBED BY THIS OBJECTIVE FUNCTION. THE VARIOUS CONSTRAINING EQUATIONS QUANTIFY THE BOUNDARY CONDITIONS TO WHICH THE DEISGN OF A FLEXIBLE PAVEMENT IS SUBJECT. THESE PHYSICAL LIMITATIONS COMPLETE THE REALISM OF THE MATHEMATICAL MODEL IN DESCRIBING THE REAL-WORLD SITUATION OF FLEXIBLE PAVEMENT DESIGN. THE DESIGN MODEL WAS WAS SOLVED BY A MODIFIED LINEAR PROGRAMMING TECHNIQUE. IN DEVELOPING PRACTICAL SOLUTIONS TO THE DESIGN MODEL, 31,680 OPTIMAL FLEXIBLE PAVEMENTS WERE DESIGNED FOR HIGHWAY CONSTRUCTION CONDITIONS IN INDIANA. THE THICKNESS REQUIREMENTS FOR THE VARIOUS LAYERS ARE SPECIFIED FOR EACH COMBINATION OF STRUCTURAL NUMBER, MINIMUM TOTAL THICKNESS, AND UNIT COSTS OF PAVEMENT MATERIALS. COST SAVINGS, WHICH RANGE FROM 2 TO 15 PERCENT, RESULT IN THE THICKNESS SELECTION OF FLEXIBLE PAVEMENT COMPONENTS BY THIS DESIGN PROCEDURE. /AUTHOR/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/8674831
• Supplemental Notes:
  • Vol 97, No TE1, PROC PAPER 7877, PP 1-14
• Authors:
  • Hejal, S S
  • Buick, T R
  • Oppenlander, J C
• Publication Date: 1971-2

Media Info

• Serial:
  • Journal of Transportation Engineering
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-947X
  • Serial URL: https://ascelibrary.org/journal/jtepbs

Subject/Index Terms

• TRT Terms: Costs; Flexible pavements; Mathematical models; Pavement design; Pavements; Paving; Thickness
• Uncontrolled Terms: Pavement thickness
• Old TRIS Terms: Pavement course thickness
• Subject Areas: Finance; Highways; Pavements;

Filing Info

• Accession Number: 00205871
• Record Type: Publication
• Files: TRIS
• Created Date: May 10 1971 12:00AM