Correlation And Application Of Spatial “Pressure-Response” Along Passenger Flow Route In Rail Transit Stations

With rail transit for passenger traffic density increasing,sudden increasing passenger demand of rail transit station is growing,"security and development" city arduous and urgent issue and a series of significant phenomenon,with a core of rail transit station space and traffic space and do not fit between passenger flow phenomenon is emerging,exploding especially the contradiction between traffic and rail transit station space,the refinement of rail transit station design and the safety of the operation management put forward higher requirements.This paper studies the spatial coupling mechanism and design strategy of rail transit stations under the most unfavorable conditions,taking the phenomenon of passenger flow surge--the prominent point,intersection point and collision point of intensified contradictions as the entry point,so as to fully guarantee the safety of station space and the stability of the overall system of "passenger flow-space".Therefore,centering on the contradiction between the sudden increase of passenger flow and space,this paper establishes the research clue of "putting forward problems-preliminary analysis of contradiction-quantitative analysis of contradiction-contradiction reduction factors-contradiction resolution strategy".Firstly,the preliminary correlation analysis of the two sides of the contradiction.In line with the research idea of deconstruction followed by construction,the first step is to disentangle the two sides of the contradiction,excavate the characteristics of the path space of the sudden increase in passenger flow and rail transit stations,and the second step is to grasp the adaptive relationship between passenger flow and spatial carrying capacity.Secondly,the critical problem when the passenger flow and space produce contradiction is quantitatively analyzed.Put forward by the density parameters,behavior status,nature environment correction coefficient of space pressure formula,and applied to a spate of rail transit passenger flow site path space research,combined with the research and literature,respectively,of all parameters of the rail transit site space pressure threshold,and the spatial pressure hierarchy,as the evaluation of rail transit site space "passenger flow-space" one of the indicators system risk.Thirdly,seeking the contradiction resolution factors and explore the necessity of taking spatial response measures.Firstly,according to the response demand characteristics of the station,spatial response influencing factors are excavated in different levels,and each factor has a one-to-one correspondence or one more correspondence with spatial pressure parameters.Based on this,an evaluation system framework of path space response performance of rail transit stations is constructed to cope with the spatial pressure of sudden increase of passenger flow.Secondly,on the basis of the system framework,the AHP analysis method is used to score the site,and this is used as the basis of whether the space takes the response measures.Thirdly,IPA analysis method was used to judge the priority of the indicators,which was used as the basis of the sequence of spatial emergency measures.Finally,the feasibility of using the evaluation system and method to judge the necessity and priority of spatial response is verified through an example analysis.Finally,putting forward the application of optimization design to solve the contradiction.Firstly,based on the framework of spatial pressure research and response evaluation system,the spatial response strategy system of "pressure-response-specific space" was constructed.Secondly,the specific strategies corresponding to specific influencing factors were elaborated in stages according to the first level indicators of response evaluation system as the three aspects of the strategy system.