基于粒子群蚁群算法求解多式联运中运输方式与运输路径集成优化问题

Research on Improved Integrated Optimization Model for Mode and Route in Multimodal Transportation Basing on the PSO-ACO

多式联运中运输方式和运输路径选择直接影响到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及运输路径和运输过程多样化的实际需求,提出运输方式选择和运输路径优化的集成模型,并根据问题特点,设计粒子群-蚁群双层优化算法对模型求解。该模型解决了运输网络多节点、多方式、多路径的集成优化问题,实验结果表明优于蚁群算法。

The transport mode and transport path in the multimodal transport have an effect on the benefits of the carri- ers and customers. According to the relationship between the transport mode selection and the transport path optimization, a integrated model which can select the transport mode and optimize the transport path synthetically was proposed to fit the di- versification of the transport path and the transport process practically. Then, the solving method about the integrated model was achieved by the PSO-ACO double-layer optimization algorithm. The multi-node, multi-mode, multi-path integrated opti- mization problems was solved by this modal, experimental show that the result is superior to ACO＇s.