Simulation Of Personnel Evacuation In Integrated Hub Based On CA-SIR Model

As of 2019,my country’s current population has exceeded 1.4 billion,and it has become the world’s most populous country.With my country’s strong national strength,various infrastructures are gradually complete,and large-scale organization activities are increasing.In large-scale activities or transportations where people gather,if people cannot be evacuated in time and there is no effective emergency response plan,then after various emergencies such as power outages,collapses,fires and earthquakes,casualties are extremely likely to occur,causing huge Loss of personnel and property.Therefore,the study of personnel evacuation has become an important topic in the field of building safety.It is very necessary to explore the characteristics of crowd evacuation behavior and guidance strategies,minimize property losses,and avoid the life and body safety of crowds in emergencies.This paper takes evacuation behavior as the research focus,and designs questionnaires from the basic characteristics of personnel,the evacuation building environment and the panic mood of the evacuation individual,and establishes the evacuation structure equation model,focusing on describing the individual attributes of the crowd,the building environment,and the panic psychology on the evacuation behavior of the crowd.The impact of decision-making.The evacuated pedestrians are divided into two categories: those who are familiar with the evacuation environment and those who are not familiar with the evacuation environment.Using the excellent characteristics of the cellular automata,a crowd evacuation model based on the emotionally stable state is constructed,and the influence of the evacuation building environment factors on the evacuation time is simulated.Among them,the factors affecting the evacuation building environment mainly include exit width,evacuation pedestrian density,field of view,and pedestrian environment familiarity.In order to study the impact of human panic on the evacuation process and behavioral decision-making of the crowd,the SIR model is introduced on the basis of the previous article to simulate the spread of panic in real evacuation scenes,and combined with the conclusions of the structural equation model to formulate different evacuation decision-making behaviors.Simulate the decision to evacuate pedestrians in different emotional states.Through the analysis of simulation experiment results,the crowd evacuation model with emotional contagion constructed in this paper can truly reflect the emotional contagion and behavior characteristics of crowd evacuation.The model has strong realistic description capabilities,can reproduce and explain the actual evacuation situation,and is an emergency management department.Provide a basis for formulating effective emergency crowd evacuation strategies.At the same time,the controllable crowd evacuation experiment in this article enriches the crowd evacuation experiment library.Therefore,the research in this article has certain theoretical and practical significance.