Research On Evacuation Simulation On Maglev Railway Bridge Based On Netlogo

In recent years,maglev railway,as a new mode of public transportation,has gradually entered the public view,and it will play an indispensable role in the future of urban rail transit in China.Because of the complexity of the maglev railway system and the larger proportion of the viaducts,the study on the evacuation related to the viaduct in the field of rail traffic is still in the early stage of development,and the emergency rescue problem on the viaduct has no mature system for reference.Therefore,it is necessary to study the safety evacuation of viaduct on magnetic levitation railway.Based on the project of "key emergency rescue technology on high and low speed maglev railway viaduct" funded by Beijing Natural Science Foundation(8172040),this paper focuses on the problem of evacuation on the maglev viaduct,The following research has been carried out:(1).The factors affecting the accident of elevated maglev railway are analyzed,and the method of accident classification is put forward.And according to the characteristics of maglev railway system and environment,the characteristics of maglev railway accidents are summarized.The existing evacuation forms and evacuation devices of the maglev railway are analyzed.(2)According to the characteristics of the maglev railway accident,the research on the evacuation psychology and behavior of the pedestrian is analyzed.The pedestrian psychology and behavior characteristics of the evacuation on the maglev elevated bridge are given.(3)Based on psychological and behavioral characteristics,the questionnaire was designed for the safe evacuation and operation of maglev railway.In Shanghai maglev line and Changsha maglev express line,field investigation and questionnaire survey were carried out.The data of the survey results were analyzed using SPSS software.At present,the passengers’ awareness of safe operation and the factors affecting the psychological characteristics of pedestrians were given.And it was used as the basis of parameter selection for evacuation simulation model on viaduct.(4)Based on Netlogo,the simulation platform for the evacuation of the maglev railway bridge is constructed.In order to study the evacuation process on the viaduct,the effects of individual behavior patterns on evacuation were studied,and special psychological behavior models such as acrophobia and return behavior were introduced.The parameters of queuing rate and return probability are set up in the model,and a verification model is established.The validation model is established,and the validity of the model is verified by using the traditional evacuation time formula.(5)Based on the model,the evacuation ability of the low speed maglev railway in the existing evacuation environment is examined.In addition,the evacuation process was simulated by changing the evacuation distance,the width of the evacuation platform,the number of passengers,the acrophobia rate,the proportion of return type passengers and other parameters.After regression analysis with SPSS,the relationship between evacuation time and parameters is given.The influence by evacuation platform size,evacuation number,passenger psychology and behavior mode on evacuation time is analyzed.Considering the allowable evacuation time of evacuation,the selection of evacuation platform size under the allowable evacuation time is given.