Container Sea-rail Intermodal Shuttles Service Network Optimization Based On Ant Colony Algorithm

With the rapid development of economy,sea-rail intermodal transportation has been an important part of international multimode transport.However,sea-rail intermodal transportation accounts for the lower proportion of port container throughput and the problems such as the single mode of transportation organization,the unfixed operation cycle are long existed.With the release of "china's 13th five-year development planning of railway container multimodal transport",there will be an opportunity to develop the container sea-rail intermodal transportation.Therefore,the research on optimization of service network in the sea-rail intermodal trains is of great significance for improving the quality of transport services and promoting the rapid development of China's sea-rail intermodal transportation.First,this paper analyzes the current research status of container sea-rail intermodal transportation,introduce the composition and the business process of the container sea-rail intermodal transport system and analyze the characteristics of the demand for the sea-rail intermodal network.Secondly,this paper constructs the service network of container shuttle train and analyzes the organization mode of container shuttle train.Next,this study uses the sea-rail shuttles to fulfill the demand of inland hinterland cities and takes the time factor of demand into account.This paper establishes a service network optimization model of sea-rail shuttles based on the minimization of the total cost of the railway company and applies ant colony algorithm to solve it.Finally,this paper takes YICT as a case study.The results show that shuttle service network design method c is scientific and reasonable.The proposed service network optimization model of sea-rail shuttles is feasible and effective.Therefore,this study can provide the theoretical guidance for the optimization of shuttles transport organization mode.