Research On Expressway Maintenance Sites Classification And Selection

Expressway of our country began to be constructed at the end of the eighties of last century, through the sustainable development of 23 years,and its traffic mileage has already exceeded to 74,000 kilometers at the end of 2010. and the expressway construction and development of our country become the second in the world, which had won splendid achievement.For the mileage of highways has increased rapidly. the highway construction and development should focus to the work of highway maintenance, For the highway maintenance business Increased heavily year by year,which requires to improve the mechanization level of our highway maintenance work. Reasonable addressing the highway maintenance centre is the main means of improving the mechanization level of our highway maintenance work. So the highway maintenance centre rationality of locating research is a very important actual significance.According to the domestic and foreign current highway maintenance system, this thesis based on the highway which is governed by Shaanxi high-speed group, through a lot of fieldwork and research to the site choose of highway maintenance ceter. this thesis is mainly worked as follows:1,According to《echnical Specifications of Highway maintenance》and different highway maintenance tasks, The highway maintenance sites are divided into three rates, Contraposing to the highway maintenance tasks, Equipped the highway maintenance sites with highway maintenance mechanical equipment. Analysis the emergency and economics of the highway maintenance site selection.2,Through the investigation,summarize the principles and requirements of the highway maintenance site selection,with the considering the factors of highway maintenance site selection. And, on this basis, make the third stages highway maintenance center location evaluation index system, use the Fuzzy Integrated Judging Method to chose the appropriate highway maintenance site from all the alternative points. Contraposed to emergency highway maintenance needs,the second stages highway maintenance site selection use the graph theory and shortest path problem to choose the most appropriate site from the third stages highway maintenance sites.3,Take the highway network in Shanxi provice as an example to verify the feasibility and rationality of mathematical model.