Study On Passenger Evacuation In Deep Buried Railway Station Under Emergency

After entering the 21 st century,my country’s urban rail transit construction has entered a stage of rapid development.Its own characteristics of speed,punctuality,and convenience are becoming more and more popular.Many large and medium-sized cities use it as an important means of transportation to alleviate traffic congestion.However,due to the complex functional structure of the station,the closed environment,and the large and concentrated passenger flow during peak periods,once an emergency occurs in the station,the evacuation capacity of the rail station may not meet the actual needs,which will bring huge difficulties to the evacuation of passengers.Moreover,with the development of the city,shallow underground space is becoming more and more tense.The layout of rail stations is mostly deep-buried.Compared with shallow-buried stations,the evacuation path for passengers in deep-buried stations is long and single.In the event of an emergency,it cannot be To meet the requirements for safe evacuation time,the hidden safety hazards have also attracted more and more attention.Therefore,this article focuses on the evacuation of passengers in deep-buried stations under emergencies.First,the paper analyzes related concepts and characteristics.Summarize the concepts and characteristics of domestic and foreign emergency emergencies,and classify them according to their characteristics;combine the evacuation characteristics of deepburied railway stations,and analyze the constraints of passenger evacuation under emergencies from the three aspects of environment,equipment and management;Comparing domestic and international emergency evacuation standards,analyzing and summarizing the existing problems and deficiencies of the current standards,and laying the foundation for the subsequent redefinition of evacuation time standards.Secondly,it analyzes the psychological activities and behavioral characteristics of passengers during evacuation in emergencies.This article analyzes the evacuation process of pedestrians based on the behavior mechanism of the escape decision-making of the personnel in the station,and studies the behavior of passengers and staff during emergency evacuation based on the difference in social responsibilities of the personnel in the station.At the same time,it introduces the panic psychology and the herd psychology The reason for the formation.Then,improve the social force model in the emergency evacuation scene.Through the study of the traditional social power model and analysis of its existing problems,the pedestrian perception range,panic psychology and information dissemination mechanism are introduced to improve the social psychological power,pedestrian expected speed and self-driving force,and calibrate the model parameters.And verification.In addition,using ANYLOGIC software to build a simulation model of the rail station,set the evacuation scene and boundary conditions,complete the design of the evacuation simulation,and propose a method to identify the evacuation bottleneck based on the passenger flow service status and service efficiency of the evacuation facility.Lay the foundation for the subsequent passenger flow evacuation simulation to identify bottlenecks.Finally,taking Chongqing Hongtudi Station as the research object,the simulation data of passenger evacuation is analyzed.Through the passenger flow evacuation simulation of the original scene,the evacuation bottleneck in the passenger flow evacuation process is found,and the bottleneck removal strategy is proposed from the three aspects of environment,equipment and management.Combined with the actual situation of the rail station,the escalator configuration and escalator of the rail station are respectively determined The location,entrance and exit configuration and emergency guidance are simulated and analyzed,and the optimization effect is compared and analyzed.