Personnel Behavior Characteristics And Personnel Evacuation Simulation In Subway

The subway system buries deep in the ground, the structure is complicated andrelatively narrow, the light is dark, and the ventilation and smoke exhaust condition isalso bad, as soon as the fire breaks out, the internal temperature in tunnel will rise fast,the smoke is difficult to be ruled out, and it’s also not easy for people to find theevacuation passageway. Related statistics show that more than85%casualties insubway fire are caused by the inhalation of toxic smoke, and then they will be choked todeath. In view of the casualties and economic loss caused by subway fire accident arevery huge, however, the research of this field in our country is still in the earlydevelopment, therefore, it’s of vital significance to research the personnel safetyevacuation problem under emergency state in subway.Based on the theory of personnel safety evacuation and other evacuationquestionnaire, the author conducts a questionnaire survey of personnel safety evacuationbehavior in subway, involved in the basic characteristics, the familiarity with station andfire protection system and the evacuation behavior. Statistics show that，there are largedifference in understanding the station and the fire protection system amonginvestigation objects, most people pay close attention to the exit and the emergencyevacuation indicators, but only a few people know the compartment fire extinguisherand the emergency button, and can used them correctly. In the evacuation behavior,people’s first response to fire, response to smoke, response to congestion and the choiceof evacuation way are relatively reasonable, but people evacuate the lack of knowledgeon choosing the escape routes. Correlation analysis results show that gender, age,education situation and fire experiences are the most significant factors that affect theevacuation behavior, among them, gender and the familiarity with station and fireprotection system, age and the evacuation behavior, education situation and theevacuation behavior, fire experiences and the familiarity with station and fire protectionsystem exist significant correlation relationship respectively.With four kinds of people—young and middle-aged men, young and middle-agedwomen, elderly men and elderly women as research objects, the author conducts apersonnel moving speed observation experiment in subway station in crowdedconditions, and the moving speed of all kinds of people at floor and in stair aredetermined by statistics and data analysis. Combining the questionnaire analysis and speed observation results, a newevacuation model based on functional units is established, with Visual Studio asdevelopment platform, the author develops the corresponding evacuation simulationsoftware by completing much work, such as establishing the interface window,programming the internal computing function statements in controls, etc. The softwarecan not only display the whole process of personnel evacuation dynamically, but alsocount the number of people.The evacuation simulation software in this paper is used to conduct a personnelevacuation simulation in a station, the results show that the evacuation simulationsoftware developed in this paper can show the whole process of the evacuationmovement, and the evacuation results is similar to Pathfinder software, that is to say theevacuation simulation software in this paper has higher dependability.