基于航程加权的航路网络效能仿真分析

The Voyage-Weighted Simulation of Route Network Performance

研究航路网络在节点失效时路网效能的表现,为网络受损提供多样化的分析情况,是下一步提高网络稳固性的重要基础。从路网结构角度出发,首先获取国内航路点邻接矩阵和节点相对坐标等基础数据,借助pajek对航路网络的结构中心性进行定量计算。依照结构中心性的分析结果设置了航路点失效的四种模式,针对四种航路点失效模式进行航路网络效能的仿真分析。仿真结果表明,变权路网下的网络效能要比等权路网下的网络效能更加符合实际结构情况,在点度优先失效模式下航路网络的抵抗性最差,表现出更快的崩溃现象,在提高网络稳固性是应优先考虑节点度值较大的节点。

Studying the performance of the route network network in the failure of the route network provides a va riety of analysis conditions for the network damage,which is an important basis for improving the network stability in the next step.From the perspective of the road network structure,the basic data of the domestic route point adjacency matrix and the relative coordinates of the nodes are first obtained,and the structural centrality of the route network is calculated quantitatively with pajek.In accordance with the results of structural centrality analysis,four modes of failure of route points were set up,and the simulation analysis of route network performance was conducted for the failure modes of the four route points.The simulation results showed that the network performance under variable-weight road network was lower than that under equal-weight road networks.The network performance is more in line with the actual structure.In the point-priority failure mode,the route network has the worst resistance and shows a faster collapse.In order to improve the network stability,priority should be given to nodes with larger node values.