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An improved social force model for improving pedestrian avoidance by reducing search size

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  • Zhihai, Tang
  • Longcheng, Yang
  • Jun, Hu
  • Xiaoning, Li
  • Lei, You

Abstract

In order to solve the slow simulation speed of the social force model in complex indoor scenes, an improved social force model is proposed to reduce the iteration scale of obstacles. The proposed model takes into account the factor of a person’s field of view (FOV) in indoor scenes, and the acting force between pedestrians and obstacles in the social force model is improved to find the optimal number of obstacle iterations without affecting the pedestrian movement law in the traditional model, so as to accelerate the simulation speed. The self-built simulation platform and real evacuation experiments are used to compare the performance indicators of traditional and optimized models and to analyze the relationship between scene complexity and machine computing efficiency. The results show that the optimized model takes less time to predict the evacuation path than traditional models, and as the number of initial pedestrians and obstacles increases, the proportion of machine computation time between the two models will gradually increase. Second, the CPU computation time of the optimized model increases gently, indicating better stability. Therefore, reducing the obstacle iteration scale based on the pedestrian’s FOV factor provides an effective method to solve the slow simulation speed of traditional models.

Suggested Citation

  • Zhihai, Tang & Longcheng, Yang & Jun, Hu & Xiaoning, Li & Lei, You, 2024. "An improved social force model for improving pedestrian avoidance by reducing search size," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 643(C).
    • Handle: RePEc:eee:phsmap:v:643:y:2024:i:c:s0378437124002759
    DOI: 10.1016/j.physa.2024.129766
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    References listed on IDEAS

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