基于势能网格的人群流动模型及其在渠化效应中的应用

doi:10.16182/j.issn1004731x.joss.201704003

系统仿真学报 ›› 2017, Vol. 29 ›› Issue (4): 714-722.doi: 10.16182/j.issn1004731x.joss.201704003

基于势能网格的人群流动模型及其在渠化效应中的应用

方乐¹, 金雪夫¹, 王思远¹, 王颖²

1.北京航空航天大学中法工程师学院北京 100191;
2.北京航空航天大学交通科学与工程学院北京 100191

收稿日期:2015-06-30 修回日期:2016-07-11 出版日期:2017-04-08 发布日期:2020-06-03
作者简介:方乐(1983-),男,安徽歙县,博士,副教授,研究方向为计算流体力学;金雪夫(1991-),男,吉林榆树,硕士,研究方向为人群流动模拟。
基金资助:
国家自然科学基金(11572025, 11202013, 31271100)

Pedestrian Flow Simulation Model Based on Potential Grid and Its Application to Lane Formation Phenomenon

Fang Le¹, Jin Xuefu¹, Wang Siyuan¹, Wang Ying²

1. Sino-French Engineering School, Beihang University, Beijing 100191, China;
2. Transportation Science and Engineering Department, Beihang University, Beijing 100191, China

Received:2015-06-30 Revised:2016-07-11 Online:2017-04-08 Published:2020-06-03

摘要/Abstract

摘要： 将宏观流体力学模型中的一些特性和微观社会力模型的部分特征融合起来,利用Dijkstra算法建立覆盖全场的势函数分布,进而建立了一种新的人群流动模型,利用光滑粒子流体动力学的思想指导运动过程,使得模拟的过程兼具宏观和微观特性。该模型在模拟某音乐厅散场算例中得到了验证,也成功重现了渠化效应现象。针对渠化效应这一典型的人群流动自组织现象提出了渠化效率这一概念,分析了它的变化特性与影响因素,为今后进一步的定量理论研究提供了工具。

关键词: 人群流动模拟, 势函数, 光滑粒子流体动力学, 渠化效应, 渠化效率

Abstract: By combining macro characteristics in fluid mechanics model and micro characteristics in social force model together, and using Dijkstra algorithm to establish a potential function covering the whole field of simulation, with the guidance of Smoothed Particle Hydrodynamics, a new model was created in order to keep both macroscopic and microscopic characteristics during the process of simulation. This new model was verified by evacuation simulation in a music hall. Using this model, lane formation phenomena was reproduced. The definition of lane formation ratio makes it possible to analyze variations and causes of this typical self-organization phenomena, providing us with new tools for quantitative pedestrian simulation studies.

Key words: pedestrian flow simulation, potential function, SPH, lane formation phenomenon, lane formation ratio

中图分类号:

U121
TP391.9

方乐, 金雪夫, 王思远, 王颖. 基于势能网格的人群流动模型及其在渠化效应中的应用[J]. 系统仿真学报, 2017, 29(4): 714-722.

Fang Le, Jin Xuefu, Wang Siyuan, Wang Ying. Pedestrian Flow Simulation Model Based on Potential Grid and Its Application to Lane Formation Phenomenon[J]. Journal of System Simulation, 2017, 29(4): 714-722.

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基于势能网格的人群流动模型及其在渠化效应中的应用

Pedestrian Flow Simulation Model Based on Potential Grid and Its Application to Lane Formation Phenomenon

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