Improved Social Force Model Based on Enhancing Psych behavioral Heterogeneity

doi:10.16182/j.issn1004731x.joss.22-0965

Abstract

Abstract:

Simulating the evacuation behavior of people under anxiety is of great significance for solving the kinematic problems such as escape. At present, most at home and abroad studies consider the anxiety factors as the only medium of population evacuation without considering how external key factors affect anxiety factors in such emergency environments. The improved social force model is proposed, combined with Agent-based stampede risk assessment, the influence of key environmental variables on the anxiety factor is quantified. The psychological force parameters are introduced, and the impact of the anxiety factor on the actual evacuation process is applied to the model through the physical vector. The model carries out the selection of individual motor vectors by enhancing the heterogeneity of individual psychological behavior. Compared with the real evacuation scenario, the experiment results show that the improved social force model can better describe the individual evacuation behavior and are more realistic and convincing.

Key words: crowd stampede, systems engineering, social force model(SFM), psychodynamic, multi-agent

CLC Number:

TP391.9

Yandong Liu, Gaoxiang Huang, Wen Chen. Improved Social Force Model Based on Enhancing Psych behavioral Heterogeneity[J]. Journal of System Simulation, 2023, 35(5): 1120-1130.

Figures/Tables 13

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关键因素	信息熵值	信息效用值	权重
逃生通道宽度	0.973	0.027	0.403
预期悲观程度	0.994	0.006	0.086
空间内噪音程度	0.994	0.006	0.086
疏散人数	0.992	0.008	0.118
空间内能见度	0.985	0.015	0.231

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