The Integration Level Of Urban Rail Transit Trip-Chain

Multi-mode transportation integration is an important means to improve the attractiveness and passenger volume of public transportation,and its integration level measurement and influencing factors analysis are the basis of improving the integration level.Based on the actual travel survey data of urban rail transit passengers,this study constructs the trip-chain integration level measurement and the influencing factor model of satisfaction from the perspective of passengers,and quantitatively studies the differences and similarities of the impact of different socioeconomic attributes of passengers and the trip-chain attributes on the integration in the process of travel.This paper adopts investigation and theoretical analysis,and obtains the following research results:This paper first introduces the concept of economic "efficiency",defines four relative efficiency concepts such as time,transfer,cost and payment,and conducts indepth research on the influencing factors of integration level and satisfaction.One-way ANOVA was used to analyse passengers’ socioeconomic attributes,and the significant impact of age on passengers’ satisfaction with integrated trip-chain was confirmed.By classifying passengers of different age groups and using Multiple Logit models,the influencing factors of trip-chain integration of young,middle-aged and elderly passengers are analyzed respectively to determine the travel preference of passengers of different age groups to trip-chain integration.At the same time,Multiple Logit marginal effect models are used to analyze the variation trend of the weight of influencing factors of passenger’s overall trip-chain integration satisfaction,and determine the weight and change of different relative efficiency.The research finds that passengers of different ages who use urban rail transit have different requirements for the integration of trip-chain.Passengers over 60 years old take care of relative efficiency of payment,passengers between 40 and 60 years old take care of relative efficiency of time,and passengers under 40 years old take care of relative efficiency of time and transfer.In this paper,Structural Equation Model is adopted to systematically build a calculation model for the level of integration of urban rail transit trip-chain,and measure the level of integration of urban rail transit trip-chain,which overcomes the defects that the level of integration of urban public transportation can not be quantified,difficult to understand and expensive from the previous macro perspective.Furthermore,multi-group structural equation is used to compare and analyze the difference of influencing factors of passenger group trip chain integration with different trip chain distances(long,medium and short distance)and habitual travel modes(rail and non-rail transit trips’ passengers).On the whole,the integration level index of Wuhan rail transit trip-chain is 68.9,which has great space for improvement.The level of trip-chain integration has a significant impact on the satisfaction of passenger trip-chain integration,with a weight of 0.77,and is positively correlated with the relative efficiency of passenger trip-chain time,transfer,payment and cost,with weights of 0.12,0.06,0.24 and 0.06,respectively.There are similarities and differences in influencing factors of integration of passenger trip-chain with different travel distances and different travel modes(rail transit or not).The correlation degree of relative efficiency of time and payment is higher than that of transfer and cost,and the correlation degree of passengers who use rail transit is the highest.The measurement based on "relative efficiency" can not only directly measure the integration level of urban rail transit trip-chain,but also measure the gap with the ideal integration.This study can point out the direction for improving the integration level of rail transit travel.