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论文类型：期刊论文
发表时间：2019-07-01
发表刊物：SUSTAINABLE CITIES AND SOCIETY
收录刊物：SCIE、EI
卷号：48
ISSN号：2210-6707
关键字：Underground space; Pedestrian volume survey data; Spatio-temporal distribution model; Pedestrian flow simulation; Pedestrian crowd condition variables; Spatial analysis
摘要：Many pedestrians gather in underground spaces that connect railway stations. Determining pedestrians' movements is important for evaluating and improving the actual underground space. Using pedestrian traffic survey data, we propose a model for simulating pedestrians' spatio-temporal distribution (SD) in an underground space. Through simulation, we obtain pedestrians' time-specific positions in the network, enabling us to study the interactions between people and the underground space with regard to crowds. We define several crowd condition variables as indicators of the degree of relative congestion in terms of safety, efficiency, and comfort, and we examine some environmental and individual factors' influence on crowd variations. We then construct a method for assessing the degree of relative congestion in underground spaces with dynamic pedestrian crowds and perform two case studies to examine the effects of proposed flow control plans on actual underground pedestrian systems.