Simulation Research On Evacuation Of High-speed Train Platforms

China has stepped into the era of high-speed rail,and high-speed trains with high speeds have brought people new and fast feelings.High-speed trains tend to develop intelligently and informationally,and the safety of high-speed trains has also received much attention.The interior space of high-speed trains is narrow,the density of personnel is large,and the range of personnel’s activities is limited.Some people carry luggage to make the space even smaller.High-speed trains use strict closed carriages.While achieving the purpose of noise reduction,passengers are also placed in a closed environment,which increases the probability of passengers forming a panic.In the event of an emergency such as a fire or terrorist attack,the safe evacuation of people becomes a huge challenge.Whether passengers can be evacuated to a designated area quickly and safely is not only related to the selection of the evacuation plan,but also to the structural design of the train itself.This paper uses Pyrosim software to establish a high-speed train model,and uses FDS + Evac software to simulate the following vehicles under different conditions.Evacuation of personnel provides theoretical basis and relevant suggestions for the design and operation of high-speed trains.The main research contents are as follows:(1)Through the method of literature survey,the theoretical problems of the evacuation of train-type personnel are systematically analyzed,and the characteristics of passenger flow of high-speed trains are analyzed in turn.Various factors affecting the safe evacuation of personnel during emergency events,the general methods of evacuation of researchers,and the commonly used methods for researching evacuation Computer software,etc.(2)Through field surveys,measure the actual size of the train,be familiar with the platform structure,and record the baggage picking behavior of the baggage-carrying personnel when they get off the vehicle by recording a video to obtain the baggagecarrying time of the baggage-carrying person,and then Set the parameters.(3)Construct train and platform models with Pyrosim software,and simplify the train body appropriately.Electrical equipment control cabinets such as bathrooms,electrical control cabinets,and air-conditioning control cabinets are presented in the form of obstacles without specific modeling.Models of first-class cars,second-class cars,business cars,dining cars,and platforms were constructed.An evacuation simulation plan was developed and divided into 3 scenarios and 25 scenarios.(4)Simulation and analysis through software.It was found that the evacuation time and the density of people carrying baggage showed a non-proportional relationship,and further fitted the relationship equation;it was found that the distribution of people carrying baggage had no effect on the evacuation time,and it was further found that whether or not there were people carrying baggage,in the carriage Congestion is most severe in some areas;the arrangement of first-class and second-class cars and the setting of platform exits have a great impact on the evacuation of vehicle personnel.