Florida Comprehensive Pavement Analysis System (COMPAS) - Vol. 1: Development of Analytical Models (Prepared for Florida DOT State Project 99000-1712.) (TTI-1991-20)

The Florida Comprehensive Pavement Analysis System (COMPAS) was developed to assist the Florida Department of Transportation (FOOT) in evaluating the effects of different forecasted truck characteristics and truck use on flexible pavement performance and life cycle costs. This is accomplished through a comprehensive approach involving the combined application of the following analytical models: 1. a load shift algorithm; 2. a vehicle simulation model; 3. a program for evaluating load equivalencies; 4. a program for evaluating cumulative IS-kip ESAL's; 5. a performance evaluation and overlay design procedure; and 6. a cost evaluation program. An overview of Florida COMPAS is initially provided to explain the general structure of the microcomputer-based pavement analysis package, and the basic functions of the different analytical models given previously. This is followed by separate chapters detailing the development of the various analysis programs. Florida COMPAS is expected to be used as a tool for FOOT in developing rational policies governing truck use of the State's highway network, and to permi t the Department to be responsive to changes in truck and tire technology for the years to come.