Self-organized phenomena of pedestrian counterflow through a wide bottleneck in a channel

doi:10.1088/1674-1056/25/9/098901

中国物理B ›› 2016, Vol. 25 ›› Issue (9): 98901-098901.doi: 10.1088/1674-1056/25/9/098901

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇

Self-organized phenomena of pedestrian counterflow through a wide bottleneck in a channel

Li-Yun Dong(董力耘), Dong-Kai Lan(蓝冬恺), Xiang Li(李翔)

1. Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China;
2. Shanghai Key Laboratory of Mechanics in Energy Engineering, Shanghai 200072, China

收稿日期:2016-03-06 修回日期:2016-04-10 出版日期:2016-09-05 发布日期:2016-09-05
通讯作者: Li-Yun Dong E-mail:dly@shu.edu.cn
基金资助:
Project supported by the National Basic Research Program of China (Grant No. 2012CB725404) and the National Natural Science Foundation of China (Grant Nos. 11172164 and 11572184).

Self-organized phenomena of pedestrian counterflow through a wide bottleneck in a channel

Li-Yun Dong(董力耘)^1,2, Dong-Kai Lan(蓝冬恺)¹, Xiang Li(李翔)¹

1. Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China;
2. Shanghai Key Laboratory of Mechanics in Energy Engineering, Shanghai 200072, China

Received:2016-03-06 Revised:2016-04-10 Online:2016-09-05 Published:2016-09-05
Contact: Li-Yun Dong E-mail:dly@shu.edu.cn
Supported by:
Project supported by the National Basic Research Program of China (Grant No. 2012CB725404) and the National Natural Science Foundation of China (Grant Nos. 11172164 and 11572184).

摘要/Abstract

摘要： The pedestrian counterflow through a bottleneck in a channel shows a variety of flow patterns due to self-organization. In order to reveal the underlying mechanism, a cellular automaton model was proposed by incorporating the floor field and the view field which reflects the global information of the studied area and local interactions with others. The presented model can well reproduce typical collective behaviors, such as lane formation. Numerical simulations were performed in the case of a wide bottleneck and typical flow patterns at different density ranges were identified as rarefied flow, laminar flow, interrupted bidirectional flow, oscillatory flow, intermittent flow, and choked flow. The effects of several parameters, such as the size of view field and the width of opening, on the bottleneck flow are also analyzed in detail. The view field plays a vital role in reproducing self-organized phenomena of pedestrian. Numerical results showed that the presented model can capture key characteristics of bottleneck flows.

关键词: counterflow, bottleneck, cellular automaton, flow patterns

Abstract: The pedestrian counterflow through a bottleneck in a channel shows a variety of flow patterns due to self-organization. In order to reveal the underlying mechanism, a cellular automaton model was proposed by incorporating the floor field and the view field which reflects the global information of the studied area and local interactions with others. The presented model can well reproduce typical collective behaviors, such as lane formation. Numerical simulations were performed in the case of a wide bottleneck and typical flow patterns at different density ranges were identified as rarefied flow, laminar flow, interrupted bidirectional flow, oscillatory flow, intermittent flow, and choked flow. The effects of several parameters, such as the size of view field and the width of opening, on the bottleneck flow are also analyzed in detail. The view field plays a vital role in reproducing self-organized phenomena of pedestrian. Numerical results showed that the presented model can capture key characteristics of bottleneck flows.

Key words: counterflow, bottleneck, cellular automaton, flow patterns

中图分类号: (Granular flow: mixing, segregation and stratification)

45.70.Mg

05.65.+b (Self-organized systems) 07.05.Tp (Computer modeling and simulation)

董力耘, 蓝冬恺, 李翔. Self-organized phenomena of pedestrian counterflow through a wide bottleneck in a channel[J]. 中国物理B, 2016, 25(9): 98901-098901.

Li-Yun Dong(董力耘), Dong-Kai Lan(蓝冬恺), Xiang Li(李翔). Self-organized phenomena of pedestrian counterflow through a wide bottleneck in a channel[J]. Chin. Phys. B, 2016, 25(9): 98901-098901.

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Self-organized phenomena of pedestrian counterflow through a wide bottleneck in a channel

Self-organized phenomena of pedestrian counterflow through a wide bottleneck in a channel

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