铁路网络的抗毁性分析研究

The Survivability of Railway Network

铁路网络如果具备良好的抗毁性,那么遭受突发事件引起线路或车站受损后,铁路网络仍然能够保持较高的运输能力。研究铁路网络的抗毁性,对保障铁路网络的正常运行和改善铁路运输网络具有重要意义。本文在分析已有文献的基础上,建立了铁路运输网络并以相对自然连通度和相对最大连通片为抗毁性指标,利用MATLAB模拟随机攻击和蓄意攻击。以成都铁路局普速铁路为例,对该网络的抗毁性进行分析,最后发现防护关键路段和关键节点能大大增强网络的抗毁性。

If the railway network has good survivability, tit will be able to maintain a high transport capacity when the line or station is damaged due to unexpected events. Research on the survivability of railway network is of great significance to ensure the normal operation of railway network and improve the railway transportation network. Based on the analysis of existing literatures, the railway transportation network is established, the relative natural connectivity and the relative maximum connectivity are taken as the indicators of the survivability, simulation of random attacks and intentional attacks by using MATLAB. Taken the general railway of Chengdu Railway Administration as an example, the survivability of the network is analyzed, finally, it is found that the protection key sections and key nodes can greatly enhance the survivability of the network.