Research On Evacuation Behavior Of Disabled People In Large-scale Stadiums

Public venue,as a carrier of cultural and recreational activities has inevitably become high-density gathering places for people.When faced with emergencies,the probability of crowded and stampede accidents is extremely high,which greatly threatens the lives of the people and property security.There is often a certain proportion of disabled people in the venue.During the evacuation process,disabled persons and their guardians form small groups.Efficient evacuation of small groups and the evacuation strategies have a decisive influence on the evacuation efficiency of the crowd.Therefore,this paper focuses on the characteristics of the disability-guardian small groups in large venues and their impact on the evacuation process.First of all,this article summarizes the behavioral habits of independent individuals and small groups,and then improves the existing cellular automata model according to the behavioral characteristics,which lays the foundation for the behavior modeling and simulation of the small groups in the following text.Secondly,it analyzes the psychological and behavioral characteristics of people with disabilities,and divides the disability-guardian groups into four categories.It also constructs a disability-guardian group evacuation decision framework,builds small groups decision-making model to select target exports,determines target locations,and selects the direction of action.It uses computers to simulate typical behaviors during the evacuation in three exit venue,such as moving closer,waiting,and returning.Finally,this article summarizes the evacuation characteristics of the people in the stadium and the behavioral characteristics of the crowd in panic situations.For the characteristics of panic behavior and its impact on the evacuation process,a new variable-panic level is defined,which quantitatively describes the individual psychology under panic state and determines the individual evacuation decision and panic level expression.A evacuation decision framework was constructed to construct a small group behavior simulation model under the panic situation to realize the reproduction of the evacuation process.The impact of the panic behavior on the evacuation process was summarized.This article builds a large-scale stadium evacuation simulation platform based on Microsoft Visual Studio to realize the behavioral simulation during the evacuation of disability-guardian groups in large venues under normal conditions and panic situations.The simulation results show that the model of the disability-guardian community behavior simulation in large venues based on the cellular automata model proposed in this paper has certain feasibility and reproduces the evacuation under real conditions.