危险化学品运输模式的选择模型研究

考虑两种常见的危险化学品运输模式公路运输和公路-铁路多模式联合运输，建立了多起点、多终点、多种类危险化学品的公路运输模型和多模式联合运输模型，并运用蚁群算法求解此两类问题。讨论了使用公路运输模式和多模式运输模式的情形并进行了案例分析。结果表明，选择何种运输模式进行运输取决于危险化学品的年运输量,同时，最优运输路径决定了转化场地的选址位置。

Modelling the selection of the mode of transportation of hazardous materials

The paper compares two common transportation modes of hazardous materials: highway transportation and highway-railway intermodal transportation. For each transportation mode, a multi-origin, multi destination, and multi-variety hazardous materials transportation model has been constructed. Ant colony algorithms have been utilized to calculate the transportation models for the two transportation modes. The models clearly demonstrate when to employ highway transportation and when to employ highway-railway intermodal transportation. Case studies show that which transportation mode is employed depends on the annual transported amount of the hazardous materials, and the optimal locations of transfer yards are determined by the optimal transportation route.