Pedestrian evacuations with imitation of cooperative behavior

Abstract

We analyze the dynamics of room evacuation for mixed populations that include both competitive and cooperative individuals through numerical simulations using the social force model. Cooperative agents represent well-trained individuals who know how to behave in order to reduce risks within high-density crowds. We consider that competitive agents can imitate cooperative behavior when they are in close proximity to cooperators. We study the effects of the imitation of cooperative behavior on the duration and safety of evacuations, analyzing evacuation time and other quantities of interest for varying parameters such as the proportions of mixing, the aspect ratio of the room, and the parameters characterizing individual behaviors. Our main findings reveal that the addition of a relatively small number of cooperative agents into a crowd can reduce evacuation time and the density near the exit door, making the evacuation faster and safer despite an increase in the total number of agents. In particular, for long spaces such as corridors, a small number of added cooperative agents can significantly facilitate the evacuation process. We compare our results with those of systems without imitation and also study the general role of cooperation, providing further analysis for homogeneous populations. Our main conclusions emphasize the potential relevance of training people how to behave in high-density crowds

References in corpus (12)

• Social Force Model for Pedestrian Dynamics
• Simulating Dynamical Features of Escape Panic
• The walking behaviour of pedestrian social groups and its impact on crowd dynamics
• The Fundamental Diagram of Pedestrian Movement Revisited
• Empirical study on social groups in pedestrian evacuation dynamics
• Game theory in models of pedestrian room evacuation
• Beyond the "faster is slower" effect
• Statistical fluctuations in pedestrian evacuation times and the effect of social contagion
• High pressures in room evacuation processes and a first approach to the dynamics around unconscious pedestrians
• A counterintuitive way to speed up pedestrian and granular bottleneck flows prone to clogging: Can 'more' escape faster?
• Microscopic dynamics of escaping groups through an exit and a corridor
• Crowding and Queuing in Entrance Scenarios: Influence of Corridor Width in Front of Bottlenecks