Application Research Of Grey System Theory On The Highway Asphalt Pavement Maintenance Management Decisions

Along with the development of China's national economy, the rapid development of highway construction, highway facilities increasing rapidly. Asphalt Concrete Pavement owing to the good mechanical properties and better durability and driving comfort, more and more attention to the road sector. However, in highway asphalt pavement withstand axial loading heavy traffic repeated and intensive role also have to withstand the impact of other natural environment, the quality of road use was decreasing, when traffic reaches a certain limit or change the use of decline to the minimum level of services would be required to take timely measures for the conservation of modernization, rapid repair to the use of asphalt pavement quality maintained in good condition. This shows that the use of the road on how to make accurate performance evaluation and correct forecasts, and take practical measures to maintain the conservation of the use of the good quality of key state. As our country's relatively short history Highway conservation, conservation management study has just started, and generally rely on the experience of the traditional road conditions qualitative observation and engineers to determine the subjective experience of the conservation section and conservation measures, the lack of certain advanced nature and accuracy. Hence the need to determine the right combination of technical and economic Maintenance determine conservation management decisions objectively correct methods for the conservation and preservation of decision-making personnel management decision-making purposes.On three key issues: First, in the evaluation of pavement performance, the method of determining the weight of a gray entropy method and AHP combination of subjective and objective methods, distinguishes it from the past emphasis on the subjective determination of the method, and secondly, using metabolic type GM (1, N) model of pavement performance prediction, Pavement performance in the assessment and prediction on the basis of the highway pavement maintenance management decision-making, focused on the multi-attribute decision analysis Grey Association technical indicators project scheduling.