Analysis of local density during football stadium access: Integrating pedestrian flow simulations and empirical data

García, Ander; Hernández-Delfin, Dariel; González, Borja; Garitaonaindia, Germán; Lee, Dae-Jin; Ellero, Marco

doi:10.1016/j.physa.2024.129635

Physica A: Statistical Mechanics and its Applications

2024

DOI: 10.1016/j.physa.2024.129635

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Analysis of local density during football stadium access: Integrating pedestrian flow simulations and empirical data

Ander García,

Dariel Hernández-Delfin,

Borja González

et al.

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Rheology of a crowd: from faster-is-slower to shear thickening

Hernández-Delfin,

García,

Ellero

2024

Commun Phys

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The evacuation speed of pedestrians through bottlenecks usually leads to the faster-is-slower (FIS) phenomenon, which relies on frictional clogging and clusters’ size. However, less attention is given in literature to the rheology of pedestrian crowds and the forces ruling their dynamics. Here, we establish a link between the faster-is-slower phenomenon (FIS) in pedestrian crowds and the shear-thickening rheological behavior of (non)Brownian suspensions. We analyze pedestrian room egress through particle-based simulations using the Social Force Model, revealing an S-shaped shear rate dependency characteristic of discontinuous shear thickening (DST). At the same time, the crowd flow viscosity near the exit exhibits a steep increase coinciding with FIS occurrence, establishing a correlation between FIS and shear thickening. Our results prove that crowd evacuations are governed by two distinct critical jamming densities, one frictional and another frictionless, and that contact forces alone cannot lead to FIS, but social force interactions are necessary to avoid contacts at low desired speeds. Our results point at the suitability of (non)Brownian suspensions as models that provide an original rheological perspective to pedestrian dynamics.

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Rheology of a crowd: from faster-is-slower to shear thickening

Hernández-Delfin,

García,

Ellero

2024

Commun Phys

Self Cite

View full text Add to dashboard Cite

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Analysis of local density during football stadium access: Integrating pedestrian flow simulations and empirical data

Cited by 1 publication

References 31 publications

Rheology of a crowd: from faster-is-slower to shear thickening

Rheology of a crowd: from faster-is-slower to shear thickening

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