| With the transformation of railway passenger transport hub,which is dominated by a single mode of railway transportation,into a comprehensive one with multiple modes of transportation,the transfer and connection between different modes of transportation has been paid more and more attention.Because both high-speed railway and urban rail transit are built on track,although they have good adaptability and coordination in transfer connection,when studying transfer connection between them,we should consider not only the matching degree of their transport capacity and the arrangement of operation organization plan,but also the overall transfer level of hub stations.Therefore,this paper studies the transfer and convergence characteristics of the two modes of transport in order to give full play to their respective traffic advantages,and improve passenger travel efficiency and the overall operation level of comprehensive transport hub,at the same time,to bring passengers a more satisfactory transfer experience.Firstly,based on the analysis of current research status of transfer and connection field by experts and scholars at home and abroad,this paper puts forward the existing problems in this field,and then outlines relevant theories of transfer and connection system in integrated transport hub,including the factors affecting transfer and connection,basic principles,hub characteristics,main functions,transfer types and transfer and connection objectives.Secondly,this paper focuses on the transfer and connection characteristics between high-speed railway and urban rail transit.The differences and correlations between them in service orientation,technical characteristics and transport organization are analyzed firstly.Then this paper deeply studies the basic characteristics of transfer and connection between them,including Logit model to predict transfer and transfer sharing rate of various modes of transport,calculation of capacity matching degree and corresponding evaluation criteria,the total transfer waiting time model under uniform distribution and the analysis of influencing factors of transfer level.Thirdly,on the premise of assuming the distribution of transfer passenger travel time as Weibull distribution,aiming at the shortest total transfer time of passengers,and on the basis of studying the arrival time of high-speed trains and the different time of passengers walking to rail transit transfer station,an optimization model of train departure time convergence is constructed,and the genetic algorithm is used to solve the model.The total transfer time of passengers and the optimized departure time of trains under the departure time of interval rail trains can be determined by the model.Fourthly,considering the factors affecting the transfer level between high-speed railway and urban rail transit,the evaluation index system of transfer level is constructed,and the reasonable weight of evaluation index is determined by using the improved analytic hierarchy process(AHP).Then,the theoretical basis of multi-level extension evaluation method and the steps of establishing the model are analyzed,and the evaluation model of transfer level between high-speed railway and urban rail transit is established.Finally,taking Lanzhou West Passenger Station as an example,this paper makes an empirical analysis of the transfer and convergence characteristics of high-speed railway and urban rail transit and the related optimization and evaluation models mentioned in the paper.The data results show that the optimization model of train departure time convergence can effectively shorten the total transfer time of passengers and improve the operation efficiency of rail transit.The model is in good agreement with the actual situation of the West Railway Station,which proves that the model has strong practicability.It can also provide some reference value for other research on transfer and connection optimization between high-speed railway and urban rail transit. |
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