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Analysis Of Air Route Network Structure

Posted on:2019-02-26Degree:MasterType:Thesis
Country:ChinaCandidate:Y S JiangFull Text:PDF
GTID:2322330569988323Subject:Transportation planning and management
Abstract/Summary:PDF Full Text Request
The construction of civil aviation route network has many limitations,“cut crooked road into straight”and can not be free.On the basis of the existing route network structure,it is the theoretical basis to explore the stability of the road network structure in the face of the damage to the internal structure,and to evaluate the tolerance of the road network structure loss for the multi-angle assessment will provide constructive advice for road network planning.This paper first establishes the complex network parameter index system of route network,analyzes the present situation and characteristics of current route network from the perspective of complex network,analyzes and calculates the structural central characteristics of road network,and conducts the network important nodes from the structural center point of view Analysis and comparison.At the same time,the concept of road network center potential is established and calculated,which is an important parameter to compare the network center of different groups.Secondly,the vulnerability analysis model of route network based on adjacency matrix is established,and the complexity of existing network structure and the space-time distribution of internal traffic flow are analyzed.The damage degree of the route network is simulated and calculated in the random failure mode and the planned failure mode respectively.The network redundancy parameters are set to effectively improve the vulnerability of the route network structure.Finally,the efficiency analysis model of route network based on link strength is established,and the current situation of the existing road network is analyzed from the perspective of optimal route.By comparing the efficiency of the road network under the condition of equal weight and variable weight,the performance of the road network under variable weight conditions is more in line with the existing road network operation.At the same time,under the failure mode of four different waypoints based on the structural center,the change of the efficiency of the network is evaluated and calculated,and the new idea of exploring the stability of the route network is further expanded.This theory helps the route network to resist external interference and provides a variety of theories.Through the above research and analysis,three important theoretical innovations have been put forward: First,the identification of critical nodes in route networks based on structural centrality is proposed;secondly,by setting up network redundancy parameters for route networks,the route network structure is effectively improved.The vulnerability of the road network improves the tolerance of the road network structure.Finally,the voyage is used as a weighting factor in the analysis of the route network efficiency,and it is more closely related to the actual status of the road network structure.At the same time,the route-point failure mode based on structural centrality provides a variety of theories in helping the route network to resist external interference.
Keywords/Search Tags:Complex network, route network, vulnerability, road network efficiency, node failed
PDF Full Text Request
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