Research of improved integrated optimization model for mode and route in multimodal transportation
多式联运中运输方式与运输路径集成优化模型研究

The transport mode and transport path in the multimodal transport are the key problems of affecting transportation cost and time, and have an effect on the benefits of the carriers and customers. According to the relationship between the transport mode selection and the transport path optimization,this paper proposed a integrated model which could select the transport mode and optimize the transport path synthetically.Then,achieved the solving method about the integrated model by the PSO-ACO double-layer optimization algorithm.Solved the multi-node, multi-mode, multi-path integrated optimization problems by this modal.Experiment shows that the result is superior to ACO and GE.