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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, the railway network will still be able to maintain its high transportation capacity after being hit by unexpected incidents resulting in damaged lines or stations. To study the invulnerability of the railway network is of great significance to the normal operation of the railway network and the improvement of the railway transportation network. Based on the analysis of the existing literature, this paper establishes a railway transport network and simulates the random attacks and the deliberate attacks by using the relative natural connectivity and the relative maximum communicating slice as invulnerability indicators. Taking the Ordinary Speed Railway in Chengdu Railway Bureau as an example, this paper analyzes the invulnerability of the network, and finally finds out that the protection of key sections and key nodes can greatly enhance the survivability of the network.