A PROPOSED FULL-DEPTH ASPHALT CONCRETE THICKNESS DESIGN PROCEDURE

The basic concepts and the development of a proposed full-depth asphalt concrete thickness design procedure are presented. Traffic (IDOT traffic factor), subgrade modulus (fine-grained soils, granular type soils), location in the state (pavement temperature effects), asphalt cement grade (AC-10, AC-20), and design reliability factors are considered. ILLI-PAVE based design algorithms are utilized in the procedure. Asphalt concrete fatigue consumption is the design criteria. A "Design Time" concept is used to consider temperature effects. The procedure can be easily modified to accommodate conditions other than those considered in the procedure presented in Appendix A.