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Microscopic dynamics of the evacuation phenomena in the context of the Social Force Model

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  • Cornes, F.E.
  • Frank, G.A.
  • Dorso, C.O.

Abstract

We studied the room evacuation problem within the context of the Social Force Model. We focused on a system of 225 pedestrians escaping from a room in different anxiety levels, and analyzed the clogging delays as the relevant magnitude responsible for the evacuation performance. We linked the delays with the clusterization phenomenon along the faster is slower and the faster is faster regimes. We will show that the faster is faster regime is characterized by the presence of a giant cluster structure (composed by more than 15 pedestrians), although no long lasting delays appear within this regime. For this system, we found that the relevant structures in the faster is slower regime are those blocking clusters that are somehow attached to the two walls defining the exit. At low desired velocities, small structures become relevant (composed by less than 5 pedestrians), but at intermediate velocities (vd≃3m∕s) the pedestrians involved in the blockings increases (not exceeding 15 pedestrians).

Suggested Citation

  • Cornes, F.E. & Frank, G.A. & Dorso, C.O., 2021. "Microscopic dynamics of the evacuation phenomena in the context of the Social Force Model," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 568(C).
    • Handle: RePEc:eee:phsmap:v:568:y:2021:i:c:s0378437121000169
    DOI: 10.1016/j.physa.2021.125744
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    References listed on IDEAS

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    1. Parisi, D.R. & Dorso, C.O., 2007. "Morphological and dynamical aspects of the room evacuation process," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 385(1), pages 343-355.
    2. Sticco, I.M. & Frank, G.A. & Cerrotta, S. & Dorso, C.O., 2017. "Room evacuation through two contiguous exits," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 474(C), pages 172-185.
    3. Nicolas, Alexandre & Bouzat, Sebastián & Kuperman, Marcelo N., 2017. "Pedestrian flows through a narrow doorway: Effect of individual behaviours on the global flow and microscopic dynamics," Transportation Research Part B: Methodological, Elsevier, vol. 99(C), pages 30-43.
    4. Parisi, D.R. & Dorso, C.O., 2005. "Microscopic dynamics of pedestrian evacuation," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 354(C), pages 606-618.
    5. Frank, G.A. & Dorso, C.O., 2011. "Room evacuation in the presence of an obstacle," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 390(11), pages 2135-2145.
    6. Sticco, I.M. & Frank, G.A. & Dorso, C.O., 2021. "Social Force Model parameter testing and optimization using a high stress real-life situation," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 561(C).
    7. Cornes, F.E. & Frank, G.A. & Dorso, C.O., 2017. "High pressures in room evacuation processes and a first approach to the dynamics around unconscious pedestrians," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 484(C), pages 282-298.
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    Cited by:

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    2. Yaping Ma & Xiaoying Liu & Feizhou Huo & Hui Li, 2022. "Analysis of Cooperation Behaviors and Crowd Dynamics during Pedestrian Evacuation with Group Existence," Sustainability, MDPI, vol. 14(9), pages 1-19, April.
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    4. Ni, Ying & Li, Yixin & Yuan, Yufei & Sun, Jian, 2023. "An operational simulation framework for modelling the multi-interaction of two-wheelers on mixed-traffic road segments," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 611(C).

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