Research On Earthquake Emergency Evacuation Behavior In Universities Based On Multimodal Data

The abruptness,instantaneity and destructiveness of earthquake disasters often shocked us.Destructive earthquakes occur in public areas with high crowd density,which is easy to cause large casualties and property losses.Structural or non-structural damage caused by earthquake will bring about casualties.Trampling accident because of improper evacuation is also an important cause of casualties.Reasonable emergency shock avoidance and safe earthquake emergency evacuation are effective means to reduce casualties caused by earthquake.As the research of earthquake emergency evacuation management,whether the construction of emergency evacuation simulation model or the proposal of emergency evacuation management strategy,evacuation behavior is the focus,but the relevant research on earthquake emergency evacuation behavior management needs to be further deepened.Universities are an important base for cultivating high-quality talents for the country.There are a large number of university students,various types of campus activities,strong self-awareness of university students,but the coverage of evacuation drill is relatively insufficient;Compared with the earthquake evacuation management of primary and secondary school students,the earthquake evacuation management of university students is more complex.Taking the evacuation of university students as the research object,this thesis explores the key problems of university students’ emergency behavior management during and after the earthquake.The main research contents of this thesis are as follows.Firstly,the research basis and research framework of the earthquake emergency evacuation behavior in universities are analyzed.The multimodal data,students’ earthquake emergency evacuation behavior and earthquake emergency evacuation in universities are defined.Besides,the current situation and existing problems of earthquake emergency evacuation in universities are analyzed.Based on the behaviorism learning theory and behaviorism research procedure,the logical framework of earthquake emergency evacuation behavior research in universities is constructed.Secondly,the thesis identifies the earthquake emergency evacuation behavior of universities.Classify the emergency evacuation behavior based on literature review,and clarify the data source of data set construction.Transana software is used to analyze the network video data,word2 vec algorithm,K-means algorithm and t-SNE algorithm are used to cluster and visualize the network text data,and the seismic emergency evacuation behavior data set is constructed from the perspective of literature data,video data and text data.Based on the idea of confirmatory interview,the matching analysis between the data set and the earthquake emergency evacuation behavior of university students is carried out.From the perspective of individual behavior and group behavior,adaptive behavior and non-adaptive behavior,this thesis further makes a cross analysis on the categories of earthquake emergency evacuation behavior of university students.Thirdly,the impact mechanism of individual behavior of university students’ earthquake emergency evacuation is studied.According to the behaviorism learning theory,the behavior patterns of evacuees in the process of earthquake emergency evacuation are defined.Considering external environmental stimuli and individual perception of evacuation,based on questionnaire survey method,correlation analysis,structural equation model and multiple regression analysis,this study analyzes the impact of internal and external stimuli on individual behavior of evacuation,further explores the interaction between stimuli,and analyzes the impact mechanism of individual behavior of university students’ earthquake emergency evacuation from the perspective of "stimulus to response".Fourthly,the evolution process of earthquake emergency evacuation group behavior in universities is explored.According to the competition and conflict between individuals in the process of evacuation,combined with the different attribute characteristics of individuals in the population,the evacuation subjects in the process of earthquake emergency evacuation in university are divided into different groups.Based on the expected utility,an evolutionary game model between different evacuation groups is constructed.Taking the emergency degree of earthquake emergency evacuation and the effectiveness of guide guidance as model parameters,the behavior evolution game of two players of shock avoidance during earthquake and three players of evacuation immediately after earthquake are studied respectively.From the perspective of micro evacuation individual behavior interaction,this study explores the evolution trend of macro evacuation group behavior that is easy to be observed.Fifthly,the thesis simulates the earthquake emergency evacuation behaviors in universities,and puts forward the corresponding evacuation behavior guidance strategy.The teaching building of a university is selected as the physical carrier of earthquake evacuation simulation.And the buildings under the influence of earthquake being basically intact,slightly damaged and moderately damaged are selected as the earthquake evacuation scene.The hazard avoidance behavior and other evacuation behaviors are simulated to explore the total evacuation time under different simulation conditions.From the perspective of shortening evacuation time and improving evacuation safety,the corresponding evacuation behavior guidance strategy and guidance strategy implementation process are put forward.Finally,the guarantee measures of the guidance strategy for earthquake emergency evacuation behaviors in universities are put forward.Based on the "one case,three systems" in China’s emergency management and the previous chapters,this thesis puts forward the safeguard measures to promote the effective implementation of the adaptive behavior guidance strategy of emergency evacuation during and after the earthquake from three aspects:emergency evacuation plan,emergency evacuation drill and emergency evacuation system.By the research of this thesis,the theoretical framework of earthquake emergency evacuation behavior in universities is constructed on the base of the behaviorism research procedure.Based on literature data,video data and text data,the data set of earthquake emergency evacuation behavior is constructed,and the individual behavior,group behavior,adaptive behavior and non-adaptive behavior in earthquake emergency evacuation in universities are defined.By the "stimulus to response" model,the individual behavior influence mechanism of earthquake emergency evacuation in universities is constructed.The evolutionary game analysis of earthquake emergency evacuation group behavior in universities is carried out from the perspective of "micro to macro".This thesis simulates the earthquake emergency evacuation in universities,and puts forward the evacuation behavior guidance strategy and implementation process.The guarantee measures for the effective implementation of the guidance strategy of earthquake emergency evacuation in universities are proposed.The purpose of this study is to further study the earthquake emergency evacuation behavior in universities from the behaviorism learning theory,and to provide some decision support for the practice of earthquake emergency evacuation managers in universities.