A preliminary study on the vulnerability of the Metro Taipei

Chuan Kai Huang, Sendo Wang

研究成果: 書貢獻/報告類型會議論文篇章


The vulnerability refers to weakness and risk of a system and its recovering ability after suffering a disaster. It has been widely used to evaluate an ecological or an environmental system. In this paper, we introduce the three index, (1) exposure, (2) sensibility, and (3) adaptability, proposed by the IPCC of the United Nations, to evaluate the vulnerability of a transportation network - the Metro Taipei. The exposure is defined as the risk of accidents and the pressure on the network, such as the inundation scenarios and the passenger flow of a station. Once an unexpected event affects the system will cause tremendous inconvenience to the passenger. The sensibility is defined as the centrality of the network. Three centrality index of each node(station) are calculated: (1) degree, (2) closeness, and (3) betweenness, to find the sensitive nodes of the network. The degree centrality is the in-connections and out-connections of a node. The closeness centrality means how close a node is to other nodes of the network. The betweenness centrality reveals how many times a node would be passed through between any two other nodes. The Girvan and Newman grouping method is applied to decompose the network into sub-networks. A sub-network can be taken as a local network. The adaptability is defined as the recovering ability or the alternatives while a node is suffering an accident. The nearby bus stops and public bike stations are considered as the alternatives while a metro station is becoming disabled. The more bus stops or public bike stations means higher adaptability of a metro station. We propose an integrated vulnerability index to considering the exposure, the sensibility, and the adaptability of each station. The integrated vulnerability index is then visualized on the map for better illustration of the negative impact and the positive recoverability of the Metro Taipei.

主出版物標題37th Asian Conference on Remote Sensing, ACRS 2016
發行者Asian Association on Remote Sensing
出版狀態已發佈 - 2016
事件37th Asian Conference on Remote Sensing, ACRS 2016 - Colombo, 斯里兰卡
持續時間: 2016 10月 172016 10月 21


名字37th Asian Conference on Remote Sensing, ACRS 2016


會議37th Asian Conference on Remote Sensing, ACRS 2016

ASJC Scopus subject areas

  • 電腦網路與通信


深入研究「A preliminary study on the vulnerability of the Metro Taipei」主題。共同形成了獨特的指紋。