A Pavement Preventive Maintenance (PPM) technology is used on the highway to predict the performance of pavement and select effective strategies. It maximally extends the life cycle of pavement and results in lower maintenance costs. This paper describes the use of gray system theory of highway pavement performance prediction based on the gradual solution of the actual data, the establishment of a preventive conservation program optimization model, to solve the model based on fuzzy optimization theory, to determine the optimum preventive conser...
