English

Discounted Mean-Field Game model of a dense static crowd with variable information crossed by an intruder

Physics and Society 2024-04-17 v3 Statistical Mechanics

Abstract

It was demonstrated in [Bonnemain et al., Phys. Rev. E 107, 024612 (2023)] that the anticipation pattern displayed by a dense crowd crossed by an intruder can be successfully described by a minimal Mean-Field Games model. However, experiments show that changes in the pedestrian knowledge significantly modify the dynamics of the crowd. Here, we show that the addition of a single parameter, the discount factor γ\gamma, which gives a lower weight to events distant in time, is sufficient to observe the whole variety of behaviors observed in the experiments. We present a comparison between the discounted MFG and the experimental data, also providing new analytic results and insight about how the introduction of γ\gamma modifies the model.

Keywords

Cite

@article{arxiv.2302.08945,
  title  = {Discounted Mean-Field Game model of a dense static crowd with variable information crossed by an intruder},
  author = {Matteo Butano and Cécile Appert-Rolland and Denis Ullmo},
  journal= {arXiv preprint arXiv:2302.08945},
  year   = {2024}
}

Comments

19 pages, 9 figures, comments are welcome