随着经济的迅速发展，单一的运输方式越来越不能满足来自客户的敏捷制造、快速响应市场、物流供应链管理等诸多方面的需求，多式联运为之提供了良好的解决方案；多式联运运输网络考虑了节点间的运输时间、节点处的运输方式转换时间以及可能发生的货运延迟；给出了多式联运下的路径最短时间模型，并根据求得的最短时间路径提供了相应的运输费用模型，为多式联运的相关研究工作提供了理论基础。

With the rapid development of economy, unimodal transport cannot meet the demand of customers, in respects of agile manufacturing, speed-to-market, logistics supply chain management, and multimodal transportation provides a good solution. Taking into consideration the transport time between node and node, mode-to-mode time and possible transport delay at node in multimodal transportation networks, the shortest time model of path is presented, and then the transport cost of the path in multimodal transportation network is calculated, providing the theory foundation for the relevant research of multimodal transportation.