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- Title
行李箱携带人群汇流过程的基本图实验研究.
- Authors
姜克淳; 张 俊; 宋卫国; 杨龙楠
- Abstract
Luggage-laden pedestrians are a typical type of crowd in public transportation hubs. It is of great significance to investigate their influence on crowd movement characteristics to optimize public facilities. Therefore, an emergency evacuation experiment was carried out with luggage carriers under six merging angles. The influence of merging angle on the movement speed and the evacuation efficiency was compared. Besides, the fundamental diagrams in different merging angles and different measurement areas were obtained. The results show that: 1) under the experimental setting, comparing the different merging angles - (the exit width d=3.00 m), the smaller the merging angle- (30°), the crowd movement speed is the largest (1.86 m/s) and the cumulative evacuation time is the shortest. With the increase of merging angles, the movement speed presents a decreasing trend (the movement speed is the lowest (1.40 m/s), and the cumulative evacuation time is the longest when - is 180°). It is found that facilities with small merging angles can improve evacuation efficiency. 2) Comparing the fundamental diagram with different measurement areas (the merging angles are constant), it is found that the distribution of crowd density at the merging intersection is smaller than that at the measurement area far away from the intersection. 3) Comparing the fundamental diagram with different merging angles (the measurement area is constant), it is found that crowd density and flow at the merging intersection are mainly distributed between 1.34 m-2~2.15 m-2 and 2.00 (m-s)-1~3.50 (m-s)-1, respectively. Moreover, within the density range observed in the experiment, the flow increases with the increase of density. The results of this study can provide a basis for optimizing the design of building facilities and formulating crowd management strategies.
- Publication
Fire Safety Science, 2022, Vol 31, Issue 4, p213
- ISSN
1004-5309
- Publication type
Article
- DOI
10.3969/j.issn.1004-5309.2022.04.03