Simulation of pedestrian evacuation considering environmental familiarity and panic propagation
In order to study the influence mechanism of environmental familiarity and panic propagation on the pedestrian evacuation,the panic propagation model and pedestrian evacuation simulation model considering the environmental familiarity were established.Firstly,the environmental familiarity was introduced into the SIR infectious disease model,and the multi-approach system simulation software AnyLogic was used to establish a panic propagation model to analyze the influence of en-vironmental familiarity on panic propagation.Secondly,the evacuation simulation software Pathfinder was used to establish a pedestrian evacuation simulation model to study the joint influence of environmental familiarity and panic propagation on pe-destrian evacuation.The results show that the environmental familiarity of the crowd is helpful to inhibit the propagation of panic emotion in the evacuated crowd,so as to reduce the evacuation time.However,under the condition of high population density,too high environmental familiarity will lead to the crowd congestion at the infrequently used exits,which is unfavor-able to evacuation.Considering panic will prolong the evacuation time under low and medium density,but will promote the evacuation under high density and low environmental familiarity.The research results can provide theoretical support for the study of pedestrian evacuation rules and have guiding significance for the formulation of evacuation strategies.