多式联运中运输方式与运输路径集成优化模型研究*

运输方式和运输路径选择问题是影响多式联运时间和费用的关键问题，直接影响承运人和客户的利益。依据运输方式选择和运输路径优化的关系特点，采用主从混合智能启发式方法，构建了运输方式选择和运输路径优化集成模型，给出了粒子群—蚁群双层优化算法求解方案，解决了运输网络多节点、多方式、多路径的集成优化问题。实验结果表明,该方案优于蚁群算法和遗传算法。

Research of improved integrated optimization model for mode and route in multimodal transportation

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.