Research on Performance Prediction and Maintenance Strategy of Expressway Based on Fuzzy Optimum Theory

Pavement Preventive Maintenance (PPM)technologies is adopted to predict the performance of pavement and select effective strategies on the expressway, the method can enormously extends the service life of pavement and result in lower maintenance costs. This paper describes prediction of highway pavement performance by means of gray system theory, and the gradual solution, which leads to the optimal model, is obtained on basis of the actual data. Maximum cost-benefit ratio can be achieved according to the result of the model solving by fuzzy optimum theory.