PennDOT has used a design procedure adopted form the American Association of State Highway and Transportation Officials (AASHTO). The procedure is widely used across the United States and internationally. Recently, the AASHTO pavement design procedure was revised, and, it was suggested that the states implement the new design guide. Before PennDOT could implement the new pavement design procedure, several design inputs had to be studied. Essentially, the design procedure had to be tailored for Pennsylvania materials and climate. The research investigated various soil types across the Commonwealth and how they are affected by rainfall and other drainage conditions. A computer program was selected to assist PennDOT engineers with the selection of drainage input to the design. The project also studied inputs such as concrete strength, variation in truck traffic reliability of design, pavement deterioration rates, soil modulus values, and load transfer factors. Each of these variables was studied for local Pennsylvania conditions. Even though the AASHTO design procedure has just been implemented, the study also evaluated the pavement design needs for the next decade. Preliminary evaluations were made for mechanistic design procedures, which will replace current procedures by the year 2000. This study will help PennDOT position itself to take advantage of the future procedures as they are developed.

  • Corporate Authors:

    Pennsylvania State University, University Park

    Pennsylvania Transportation Institute, Transportation Research Building
    University Park, PA  United States  16802

    Pennsylvania Department of Transportation

    Office of Research and Special Studies, P.O. Box 2926
    Harrisburg, PA  United States  17120

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Hiltunen, D R
    • Stoffels, S M
    • Kilareski, W P
    • Coudriet, D L
    • JAMES, J R
  • Publication Date: 1991-11

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 266 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00622346
  • Record Type: Publication
  • Report/Paper Numbers: FHWA-PA-91-006+89-06, PTI 9202
  • Created Date: May 31 1992 12:00AM