空间局域性灾害下网络系统的空间脆弱性研究

发布时间：2019-03-07 16:18

【摘要】：在简单分析了传统脆弱性研究存在的问题后,提出了一个全新的针对网络系统的空间脆弱性理论模型。该模型是在传统脆弱性曲线方法的基础上,考虑了灾害位置,灾害覆盖面积,灾害全局性影响(包括灾害的直接和间接影响)以及系统结点对灾害的设防水平等4个因素,并提出了两个空间脆弱性指数(SVI),分别为绝对空间脆弱性指数(ASVI)和相对空间脆弱性指数(RSVI),以期尽可能真实地反映网络系统在面临空间局域性灾害时的脆弱性水平。空间脆弱性理论模型重点关注空间局域性灾害对网络系统造成的全局性影响。之后,以中国民用航空网络系统为例进行了案例研究,验证了该模型的有效性和合理性。结果表明,所有的仿真结果均符合人们对中国民用航空系统的认知常识,从而验证了空间脆弱性理论模型的合理性。
[Abstract]:After simply analyzing the problems existing in the traditional vulnerability study, a new theoretical model of spatial vulnerability for network systems is proposed. Based on the traditional vulnerability curve method, the model takes into account four factors, such as disaster location, disaster coverage area, disaster overall impact (including direct and indirect effects of disasters) and the level of disaster prevention by system nodes. Two spatial vulnerability indices (SVI),) are proposed as absolute spatial vulnerability index (ASVI) and relative spatial vulnerability index (RSVI),). In order to reflect the vulnerability level of the network system in the face of space local disasters as true as possible. The theoretical model of spatial vulnerability focuses on the global impact of spatial local disasters on the network system. Then, a case study of China civil aviation network system is carried out to verify the validity and rationality of the model. The results show that all the simulation results are in accordance with the cognitive knowledge of the Chinese civil aviation system, thus validating the rationality of the spatial vulnerability theory model.
【作者单位】：北京师范大学地表过程与资源生态国家重点实验室;北京师范大学减灾与应急管理研究院;
【基金】：国家自然科学基金面上项目(61472041) 国家重点基础研究发展计划(2012CB955404) 中央高校基本科研业务费专项资金(256-105570GK) 北京师范大学地表过程与资源生态国家重点实验室专项资金(2015-ZY-05)~~
【分类号】：X4

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