Use of Fuzzy Sets Mathematics to Assist Pavement Evaluation and Management. Executive Summary. (Revised March 18, 1986)

摘要

This report applies the mathematics of fuzzy sets that was created in the companion Interim Report by Gunaratne, et al. The new scheme being suggested for pavement management is predicted on the presence of uncertainty at various stages in pavement management which requries that judgment be used in the process. The fuzzy sets mathematics can methodically combine subjective information and crisp measurement data. Fuzzy sets are used to represent the subjectivity in pavement serviceability ratings and distress surveys, and the variability in Roadmeter, Skid-Tester and Dynaflect readings. The ranking of pavements is formulated using fuzzy multi-attribute decision-making concepts using an expert knowledge base. To use the new scheme required the one-time development of the knowledge base.