The Influence Of Escalator Layout On The Passenger Flow Distribution Of Subway Station

As a platform for direct interaction with passengers in subway station,platform has the characteristics of high density of people flow,strong short-term impact,dense conflict points of passenger flow,etc.The subway platform passenger flow is unbalanced in space,and the uneven distribution of platform passenger flow is easy to lead to the decrease of platform boarding and landing efficiency and the increase of security risks.The escalator layout of platform building has a significant impact on the passenger flow distribution of subway platform,and the selection behavior of platform passengers to waiting area is the direct reason for the uneven distribution of platform passenger flow.In order to ensure the safe operation of the platform,improve the boarding and landing efficiency of the platform and improve the service level of the platform,it is necessary to study the layout of the platform building escalator and the distribution characteristics of the platform passenger flow,analyze the formation mechanism of the selection behavior of the waiting area of the platform passengers,and establish the selection model of the platform sub area based on the layout of the platform building escalator.The research results can provide theoretical reference for the design and transformation of subway station platform facilities,and provide theoretical basis for the scientific passenger flow organization of the platform and the humanized layout of facilities and equipment.Firstly,the characteristics of passenger flow line,arrival of waiting passenger flow and distribution of platform passenger flow are analyzed.Based on the characteristics of platform passenger flow,the method of platform waiting area division is determined,and the down platform of Qibao station of line 9 is taken as an example to divide the platform waiting area.Secondly,the standard deviation is selected as the index of the equilibrium degree of platform passenger flow distribution,and the calculation formula of theequilibrium degree is determined.This paper analyzes the influence of different combination forms of platform building escalators on the actual trafficability under the actual operation conditions,and analyzes the influence of platform building escalator layout on the distribution of platform passenger flow from two aspects of platform building escalator location layout and quantity setting.The platform of Qibao station of Shanghai Metro Line 9,Gaoqing Road Station of Shanghai Metro Line 6 and Xujiahui Station of Shanghai Metro Line 11 are selected as the central building respectively For typical stations with escalator layout mode,end escalator layout mode and mixed multi group escalator layout mode,investigate and analyze the difference of platform passenger flow distribution equilibrium under different layout modes.Thirdly,in order to study the internal influence mechanism of platform escalator layout on platform passenger flow distribution,it is necessary to further analyze the selection behavior of platform passengers on waiting area,establish the logit model of platform sub area selection based on platform escalator layout,and determine the arrival passenger flow of platform escalator,the relative position of waiting sub area,the relative distance of waiting sub area,the relative congestion degree of waiting sub area and waiting sub area The visibility of the car area is the influencing factor.Taking the survey data of Qibao station of Shanghai subway as a sample,the logit model is calibrated and verified.The model can better fit the distribution of waiting sub areas of subway platform passengers.Finally,the simulation model of platform passenger flow distribution is established by using the software of anylogic.Through comparative analysis,it can be seen that in the peak period of passenger flow,the platform passenger flow distribution equilibrium of the end building escalator layout mode is better than that of the middle building escalator layout mode,and the platform passenger flow distribution equilibrium of the mixed three group building escalator layout mode with the same arrival rate is the best.