Optimization Model And Method On Distribution Organization Of Railway Container Based On Rail-water Intermodal Transportation

Rail-water intermodal transportation is the important element of intermodal transport system in our country, meanwhile, is also an important part of the national integrated transport system. Effective operation of rail-water intermodal transportation not only requires perfect transportation network and the advanced handling equipment, but also need to be guaranteed by scientific and reasonable transportation organization.This paper takes the transportation organization of railway container based on rail-water intermodal transportation as the research object, and takes the lines and operation nodes in network as the carrier. In view of the cohesion and coordination problems about ability in rail-water intermodal transportation, the connotation and mechanism of capacity coordination is researched in the perspective of resource allocation of time and space. Finally, the method of organization of static and dynamic adjustment plan in container intermodal transportation under the resource constraints of time and space is established. The major research contents are summarized as follow:(1) Framework analysis on the rail-water intermodal transportation organization system. On the basis of the network of rail-water intermodal transportation, the components and characteristics of the rail-water intermodal transportation network and structure is analyzed. And for theoretical support of subsequent studies, the basic principles, forms, organization characteristics and relevant requirements of railway container transportation organization are put forward under the restriction of port and waterway transportation organization.(2) Organization factor analysis on the rail-water intermodal transportation. In the framework of rail-water intermodal transportation organization system, the concept of coordination area in the rail-water intermodal transportation is presented, and the physical space boundary of the rail-water intermodal transportation organization optimization is defined. And then from the analysis of "rail-water" and "rail-yard-water" two kinds of transportation organization mode, the key factors of organization coordination has been studied, meanwhile, the logical boundary about the rail-water intermodal transportation organization is defined.(3) Study on the rail-water intermodal transportation organization optimization. On the basis of analyzing the main factors influencing the transportation organization, a nonlinear integer programming model is established, whose goal is to speed up the efficiency of railway container transportation, and the constraints are included many factors such as operation capacity, network capacity and the efficiency of the container and so on. Then to solve the model, the corresponding intelligent algorithm is designed. In addition, in order to evaluate the result of the optimization, the evaluation index system is established from the angle of transportation organization comprehensive benefits.(4) Study on organization dynamic adjustment in the rail-water intermodal transportation. In the background of static organization scheme, dynamic adjustment method and mechanism about transportation organization under the uncertain interference are studied. According to the type of uncertain disturbance, the corresponding adjustment strategies and methods are studied. On the basis of the organization optimization model, the optimal transportation dynamic adjustment model is established, whose target is to minimize the disturbance of the initial static scheme and optimize the transportation scheme. Correspondingly, an intelligent algorithm to solve the model is designed. Finally, adjustment scheme under the disturbance of multi-type is analyzed.According to the research on the railway container transportation organization based on rail-water intermodal transportation, the paper can not only enrich the basic theory of rail-water intermodal transportation organization, but also improve the practical organization. Meanwhile, as the important part of intermodal transport, the research can provide the certain reference value for improving the efficiency of intermodal transport organization.