| 引用本文： |
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宁宏新,施映,章一才,薛郁.行人的集团行为对通道交通的影响[J].广西科学,2017,24(4):333-339. [点击复制]
- NING Hongxin,SHI Ying,ZHANG Yicai,XUE Yu.Study on the Group Behavior of Pedestrian in a Channel[J].Guangxi Sciences,2017,24(4):333-339. [点击复制]
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| 摘要: |
| [目的]研究在行人通道中,行人结队行走对交通拥堵的影响,避免突发事件的发生。[方法]基于偏向随机行走格子气模型,提出行人通道中行人结队行走的偏向随机行走格子气模型。结队人群在通道中的行走规则与单个人行走时一样,行进的方向是一致的,行进过程中不能后退。每个集团的人群由n1×n2个人组成,占据n1×n2个格点。考虑向左、向右、向上和向下行走的4种人群。[结果]在行人交通流中出现从自由相到堵塞相的相变现象,且相变的临界密度与行人集团的尺度有很大的关系。[结论]相变的临界密度取决于行人集团的尺度,行人集团的尺度和迁移系数影响阻塞相变。 |
| 关键词: 行人交通流 格子气模型 结队 迁移概率 |
| DOI：10.13656/j.cnki.gxkx.20170714.002 |
| 投稿时间：2017-06-17 |
| 基金项目:国家自然科学基金项目(11262003)和广西自然科学基金项目(20140593)资助。 |
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| Study on the Group Behavior of Pedestrian in a Channel |
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NING Hongxin1, SHI Ying2, ZHANG Yicai2, XUE Yu2
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| (1.Shiyuan College, Guangxi Teachers Education University, Nanning, Guangxi, 530008, China;2.School of Physical Science and Technology, Guangxi University, Nanning, Guangxi, 530004, China) |
| Abstract: |
| [Objective] This paper studies the impacts of pedestrian walking in groups in a pedestrian access on traffic jams to avoid the occurrence of unexpected events.[Methods] Based on a biased random-walk lattice gas model, a biased random-walk lattice gas model for pedestrian walking in groups in a pedestrian access is proposed.Walking rules of the crowds in a pedestrian access are the same as those of a single person.They walk together towards the same direction and no retreat is allowed during the advancing process.A people group is composed by n1×n2 people and occupies n1×n2 sites on lattice. Four people groups, which walk towards the left and right, upward and downward, are considered in the model.[Results] The phenomenon of phase transition in pedestrian flow is found from free phase to jam phase, and the critical density of phase transition has a great relationship with the pedestrian group's size.[Conclusion] The critical density of phase transition depends on the pedestrian group's size, and the pedestrian group's size and migration coefficient affect the blocking phase transition. |
| Key words: pedestrian traffic flow lattice gas model group behavior drift D |
