1. U.S. Department of Transportation Federal Highway Administration Long-Term Pavement Performance Program Rigid Pavement Design Software For the 1998 Supplement to the AASHTO Guide for Design of Pavement Structures, Part II: Rigid Pavement Design & Rigid Pavement Joint Design Long-Term Pavement Performance Program

2. PRESENTATION OBJECTIVES What is the Rigid Pavement Design (RPD) Software? Development of the RPD Software RPD Software Features and Capabilities How To Use the RPD Software Who Should Use the RPD Software and Why How to Get the RPD Software

3. Rigid Pavement Design Software: What It Is Microsoft Excel spreadsheet Automates the design and analysis procedures of the 1998 AASHTO Supplement

4. Rigid Pavement Design Software: What It Is Spreadsheet has separate sheets: (a) for determining: –accumulated traffic loadings –seasonally adjusted k values –adjusted k-value for fill and/or depth to rigid layer (b) for performing –corner break checks –faulting cracks

5. PRESENTATION OBJECTIVES What is the Rigid Pavement Design (RPD) Software? Development of the RPD Software RPD Software Features and Capabilities How To Use the RPD Software Who Should Use the RPD Software and Why How to Get the RPD Software

6. AASHTO Design Guide: Evolution AASHO Road Test (ART), 1958-1960 AASHO Interim Guides, 1961 & 1962 Revised Interim Guide, 1972 Revised Chapter III (rigid), 1981 AASHTO Guide for the Design of Pavement Structures, 1986 AASHTO Guide for the Design of Pavement Structures, 1993 (overlays) Supplement to the AASHTO Guide for the Design of Pavement Structures, 1998 (rigid pavement design)

7. AASHO Road Test (ART) Basis of AASHTO Design Guide

8. TYPICAL JPCP PAVEMENT (designed according to 1972-1989 versions AASHTO design guides)