Measuring vulnerability of urban metro network from line operation perspective
作者： Daniel (Jian) Sun , Shituo Guan
DOI: 10.1016/J.TRA.2016.09.024
关键词: TRIPS architecture 、 Service (systems architecture) 、 Perspective (graphical) 、 Betweenness centrality 、 Line (text file) 、 Transport engineering 、 Weighted arithmetic mean 、 Traffic flow 、 Engineering 、 Vulnerability
摘要: Abstract Urban metro systems are subject to recurring service disruption for various reasons, such as mechanical or electrical failure, adverse weather, other accidents. In recent years, studies on networks have attracted increasing attention because the consequence of operational accidents is barely affordable. This study proposes measure network vulnerability from perspective line operation by taking Shanghai a case study. As opposed previous that focused largely important nodes links, this investigates perspective. Betweenness centrality (BC) and passenger betweenness (PBC), number missed trips, weighted average path length, global efficiency were analyzed considering relative probability each line. Passenger flow distribution re-distribution simulated different scenarios based all-or-nothing assignment rule. The results indicate lines carrying large passengers generally significant impact vulnerability. with circular topological form also influence in disruption. provide suggestions system administration potential improvement performance operation, may meanwhile an improved alternate plan their commute trip when occurs.
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