高速公路網結構動態(tài)評價及系統(tǒng)實現(xiàn)
[Abstract]:With the increasing number of vehicles, it stimulates the highway mileage to improve significantly, and provides a good opportunity for the development of the transportation industry. Expressway has the characteristics of high efficiency, fast, convenient and close, so it has become an important choice for people to travel long distances. The construction structure of the highway network is closely related to the economic development. Once the important nodes and sections are blocked by natural disasters or major traffic accidents, the road network will be paralyzed on a large scale and the safety of people's lives and property will be greatly threatened. Therefore, it is necessary to evaluate the structural characteristics of road network from different angles. The expressway network has the characteristics of complex structure, diversity of nodes and fusion of multiple complexity, so it can be studied based on the theory of complex network. Firstly, this paper introduces the basic concepts of complex network and graph theory, expounds the basic statistical indicators of complex network, summarizes the research results of domestic and foreign scholars, and provides the theoretical basis for further research. Secondly, according to the setting mode of network elements, this paper selects Space L model as the modeling method, and establishes the generalized network topology model for the expressway network from the micro and macro representation granularity. The generalized network topology model is divided into city network model and global network model. The local network model takes high speed toll station as the node and takes the high-speed section of the toll station as the edge; the global network model takes the city as the node, and the global network model takes the city as the node. Taking whether the cities are directly connected or not, and aiming at the established generalized network topology model, the structural characteristics of the static network are analyzed from the micro and macro aspects. Thirdly, considering the influence of road mileage and capacity on the road network structure, the paper defines the connectivity measure, equilibrium measure and invulnerability measure of highway network. The index system of dynamic evaluation of local network and global network structure is constructed. Finally, based on the dynamic evaluation index system of road network structure, on the basis of the second development of ArcGIS, and based on the programming languages such as javajsp and java script, this paper uses my Eclipse as the system development tool, and adopts the B / S network architecture model. The dynamic evaluation system of road network structure is developed and the corresponding evaluation index is calculated by using the system. The effects of dynamic parameters on connectivity, equilibrium and survivability of road network structure are studied from two aspects of normal traffic flow state and blocking event respectively. The dynamic evaluation of road network structure is realized, and the applicability of evaluation index is verified. Finally, according to the analysis results, some suggestions and measures are put forward to realize the research purpose of applying the dynamic evaluation system of highway network structure to practice.
【學位授予單位】:北京交通大學
【學位級別】:碩士
【學位授予年份】:2017
【分類號】:U412.1
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