Research On Intelligent Emergency Evacuation Method Under The Operation Status Of Metr Ostation

As an important part of urban infrastructure construction,the subway has enriched the travel methods of urban residents in daily life and brought convenience to everyone's life.However,with the continuous increase of urban passenger traffic,subway stations are an important place for passengers to be distributed and transported,which will gather a large number of traveling passengers.The increase in passenger flow will increase the potential safety hazards of subway stations.Once an emergency occurs inside the station,it will cause serious casualties and economic and property losses.Based on the analysis of the characteristics of emergency evacuation behavior of subway station personnel,this paper builds an intelligent emergency evacuation system for subway stations based on the emergency evacuation management theory of relevant subway stations.From the perspective of safe evacuation of personnel in emergency situations,the station makes The personnel were informed of the dangerous situation at the first time and evacuated in time,ensuring the safety of the personnel evacuation of the subway station in an emergency situation.The work of the thesis is mainly reflected in the following aspects:(1)Firstly,the relevant theories of evacuation of subway stations are analyzed,and the requirements for safe evacuation of personnel in the emergency situation of the subway station under normal operating conditions are elaborated,and then the impact of the evacuation movement of the cluster in the subway station when the passenger encounters the emergency situation The analysis of factors mainly includes the five aspects of passengers' individual factors,psychological characteristics,surrounding environment,living habits and cultural attributes,and self-organizing behavior.At the same time,some of the shortcomings of the current emergency evacuation methods in the "Metro Design Code" are proposed.The applicability of the two commonly used path planning algorithms is compared and analyzed,and the path planning algorithm that is more suitable for the evacuation of subway station structure personnel is selected to provide corresponding theoretical support for the subsequent construction of subway station intelligent emergency evacuation systems.(2)The method of calculating the emergency evacuation capacity of personnel in different connection arrangements of subway stations is studied.The connection relationship between different facilities of the subway station is analyzed from the aspects of the spatial structure of the station and the flow of personnel movement in the station.At the same time,the personnel in the station are evacuated The layout of the evacuation facilities encountered on the streamline was discussed,and the overall structure layout of the equipment in the station was analyzed to clarify the relationship between the facilities and equipment in the station and the evacuation capacity of the personnel.(3)Based on the relevant theories of subway design codes and safe evacuation of personnel,the overall framework of the system is established.At the same time,the network mode selection,interface design,database design,and functional characteristics of the system are discussed to build an intelligent emergency evacuation system for subway stations.From the perspective of the safe evacuation of personnel in the station,the overall design of the system is completed,and finally the two functions of precursory analysis and monitoring,and the planning of personnel evacuation paths are realized,which provides corresponding technical support for the safe evacuation of people in subway stations.Finally,taking the actual project of a subway station as an example,the two major functions of precursor analysis and monitoring in the system and planning of personnel evacuation path were verified.The station real-time monitoring video viewing,video playback,and past accident query were completed,and the station was checked.Monitoring and alarming the abnormal passenger flow,guiding the safety evacuation process of the subway station platform personnel,and verifying the reliability of the subway station's intelligent emergency evacuation system.