The Research And Development For Pavement Managerment System Of Changyi Expressway

With increase of traffic mileage and the gradual formation of expressway network,the problems about the maintenance of expressway have been more and more paid attentions. Building a scientific and high effective Expressway Pavement Maintenance Management Assistant Decision System can change effectively traditional highway maintenance management mode, and provide scientific basis and decision support for pavement management decision-maker to make pavement performance evaluation and prediction and identify reasonably fund demand and distribution plan of pavement management and optimize pavement maintenance decision. So it can both make sure the expressway function efficiency and fit in with the pavement maintenance need of modernization and mass and high quality. It is of great significance to sustainable development of expressway and regional economy, and help to change the idea of rather construction than maintenance and realize the transfer of the key work in highway department. Its application is of positive practical significance and effect to expressway maintenance management work in our country.This paper takes Changyi expressway for example. Changyi expressway has lasted eight years since July 1998 in which it completed and opened to traffic officially. Along with the continuous and rapid development of the economy and society in the region along this road, the continuous grow of the traffic volume in this road, especially becoming large of overloading and Heavy traffic phenomenon in recent years, make damage to Changyi expressway performance and make maintenance work become grim increasingly. Based on the available pavement performance and investigation of the traffic volume, the decision mode and optimization plan adapted itself have been founded by prediction and evaluation. Eventually it provide decision plan for decision-maker: What time for a major maintenance; how many major maintenance in its life; each road sections can adapt to the current volume of traffic and axle load traffic or not; which road sections need to take maintenance measures in what ways at what time, and so on.Practices of domestic and foreign pavement management illustrate: manage- ment System technique is a kind of scientific management mode and a tool for assistant decision. It is distinct from the traditional decision mode that it makes good use of human resource. So PMS is of benefit to the systematism and science and modernization of the pavement management decision, and good for making best use of the pavement resource . Textual adopt theory and practice work associative way. It receive new know of Decision Optimization of Pavement Maintenance Management System for and gradually improve optimize level of pavement management maintain decision.