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为降低突发事件对城市地铁网络系统(UMNS)造成的影响,提出UMNS拓扑结构脆弱性评价方法。研究随机和蓄意移除地铁车站和区间对UMNS连通性造成的故障规模。实证分析表明:随机移除地铁车站造成的故障规模明显小于蓄意移除的;随机移除地铁区间造成的故障规模明显大于蓄意移除的;移除地铁车站造成的故障规模明显大于移除地铁区间所造成的。研究结果表明:UMNS对车站所受蓄意攻击具有脆弱性,对区间的蓄意攻击具有鲁棒性;在运营管理中,应重点保障大型换乘车站的正常运行,防止其遭恶意破坏而造成大规模故障。
To reduce the impact of emergencies on the urban metro network system (UMNS), a UMNS topology vulnerability assessment method is proposed. Investigate the magnitude of the failure caused by random and intentional removal of metro stations and intervals to UMNS connectivity. The empirical analysis shows that the scale of failure caused by random removal of metro stations is significantly less than that of deliberate removal; the scale of accidents caused by random removal of metro areas is obviously larger than that of intentional removal; the scale of failure caused by metro stations removed is obviously larger than that of metro areas Caused by The results show that: UMNS is vulnerable to intentional attacks on stations and is robust to deliberate attacks in the area; in operation and management, it should focus on ensuring the normal operation of large transfer stations and preventing them from being vandalized and causing large-scale malfunction.