Development of Pavement Performance Curves for Individual Distress Indexes in South Dakota Based on Expert Opinion

Abstract

Work done to develop pavement performance curves for use in the enhanced South Dakota Department of Transportation (SDDOT) pavement management system (PMS) is described. Pavement performance curves were developed for various new pavement sections as well as for a range of rehabilitation treatments. The performance curves were developed by using both individual and composite pavement indexes. Because of a lack of sufficient historical data the pavement performance curves could only be developed by using expert opinion. A pavement expert group was established and a questionnaire was developed to quantify their collective experience. The responses were then used to develop quite reasonable pavement performance curves by using individual and composite indexes developed for South Dakota. The resulting pavement performance curves are adequate for the beginning input into the enhanced SDDOT PMS. The pavement performance curves developed should be revised as sufficient historical pavement condition data become available.

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