Research On Multimodal Rail Transit Intermodal Service System And Optimal Path Selection Model

With the sustained and rapid development of China’s economy,the infrastructure construction of China’s big cities has become increasingly perfect,and has gradually approached or even reached the world’s advanced level.However,the traffic conditions in big cities are still severe,and the development of intermodal transportation is an effective way to promote the improvement of the integrated transportation service system,save the resources of various transportation systems,give full play to the advantages of various types of transportation,and then alleviate urban traffic pressure.Based on the National Key R & D Program Project Topic 2 "Key Technology for Regional Rail Transit Capacity Allocation and Decision-Making of Transport Organization" and the regional multi-standard rail transit network,this paper studies the key technologies of regional multi-modal rail transit intermodal transportation and builds a regional multi-modal rail transit intermodal transportation service system.It provided technical support for clarifying the whole process of regional rail passenger travel and improving the combined efficiency of various rail transportation modes,further enriching the key technologies of the comprehensive transportation theory system The specific content is as follows:1、The basic problems of China’s rail passenger intermodal transportation were pointed out,and it was proposed that it needs to be improved from six aspects such as infrastructure and market environment.Five key passenger intermodal transportation technologies were analyzed,and "six perfections" and "five technologies" were combined to complete the construction of the regional rail transit intermodal transport framework,which identified the core of the key research technologies in this paper.2、The definition of the regional rail transit travel chain was derived from analyses of the concept of travel chain.The basic network architecture of the regional rail transit travel chain was analyzed in the overall and local aspects,and the influencing factors of the regional rail transit travel chain path selection were determined at the same time.3、A super network architecture for multi-modal rail transit was constructed,and the nature of multi-modal rail transit network services was explained,thereby completing the construction of a decision model for regional multi-modal rail transit schemes with the goal of minimizing generalized costs.At the same time,several classical optimal path selection algorithms were compared and analyzed.4 、 Selecting Some key rail transit networks in the Chengdu-Chongqing urban agglomeration as analysis objects,the research background was determined,and the above theories and models were applied to carry out an example analysis to obtain a set of passenger travel decision schemes in the regional rail transit network.This paper analyzed the key technologies of passenger intermodal transportation in the regional rail transit network,combining the travel chain and route selection to obtain a travel plan decision set,which provided a route reference for passenger travel and a basis for the construction of intermodal transportation.