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Simulation of Exit Selection Behavior Using Least Effort Algorithm

Authors
Journal
Transportation Research Procedia
2352-1465
Publisher
Elsevier
Identifiers
DOI: 10.1016/j.trpro.2014.09.093
Keywords
  • Exit Selection
  • Least Effort Algorithm
  • Crowd Density
  • Simulation
  • Evacuation
Disciplines
  • Computer Science
  • Design

Abstract

Abstract In an evacuation process involving multi-exits, exit selection behavior is a significant concern for safe facility design. We improve the least effort algorithm to investigate pedestrian exit route decisions in simulated evacuations, considering crowd density around two exits. This modification extends the algorithm to support altering targets in the case of asymmetrical exits. We conduct simulations given some special distribution of pedestrians. Pedestrian exit selection behavior and herding behavior are clearly demonstrated. Moreover, the model is applied to identify the relationship between exit separation and evacuation time. The total exit flow rate against different initial crowd densities is also discussed.

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