Dynamics of pedestrians in regions with no visibility - a lattice model without exclusion

Details Dynamics of pedestrians in regions with no visibility - a lattice model without exclusion Dynamics of pedestrians in regions with no visibility - a lattice model without exclusion

2012-03-21

arxiv.org/abs/1203.4852v1

Physics

Physics and Society

20 pages

Scientific paper

We investigate the motion of pedestrians through obscure corridors where the lack of visibility (due to smoke, fog, darkness, etc.) hides the precise position of the exits. We focus our attention on a set of basic mechanisms, which we assume to be governing the dynamics at the individual level. Using a lattice model, we explore the effects of non-exclusion on the overall exit flux (evacuation rate). More precisely, we study the effect of the buddying threshold (of no-exclusion per site) on the dynamics of the crowd and investigate to which extent our model confirms the following pattern revealed by investigations on real emergencies: If the evacuees tend to cooperate and act altruistically, then their collective action tends to favor the occurrence of disasters.

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