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Pedestrian bottleneck flow when keeping a prescribed physical distance

Iñaki Echeverría-Huarte1, Zhigang Shi2, Angel Garcimartín1, and Iker Zuriguel1,*

  • 1Departamento de Física, Facultad de Ciencias, Universidad de Navarra, E-31080 Pamplona, Spain
  • 2State Key Laboratory of Fire Science, University of science and technology of China, 230026, Hefei, China

  • *iker@unav.es
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Phys. Rev. E 106, 044302 – Published 10 October, 2022

DOI: https://doi.org/10.1103/PhysRevE.106.044302

Abstract

We present experimental results of pedestrian evacuations through a narrow door under a prescribed safety distancing of either 1.5 or 2 meters. In this situation, flow rate augments with pedestrian velocity due to a complete absence of flow interruptions or clogs. Accordingly, the evacuation improves when the prescribed physical distance is reduced, as this implies shortening the time lapses between the exit of consecutive pedestrians. In addition, the analysis of pedestrian trajectories reveals that the distance to the first neighbor in the evacuation process is rather similar to the one obtained when pedestrians were just roaming within the arena, hence suggesting that this magnitude depends more on the crowd state (desired speed, prescribed safety distance, etc.) than on the geometry where the pedestrian flow takes place. Also, an important difference in pedestrian behavior is observed when people are asked to walk at different speeds: whereas slow pedestrians evidence a clear preference for stop-and-go motion, fast walkers display detouring and stop-and-go behavior roughly in the same proportion.

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Outline

Information

Phys. Rev. E 106, 044302– Published 10 October, 2022
  • Received 2 May 2022
  • Revised 19 September 2022
  • Accepted 26 September 2022
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