基于似三棱柱的长大货物联运路径优化方法

Optimal Model and Algorithm for Long and Bulky Cargo Multimodal Transport Path Based on Analogic Tri-prim

以长大货物多式联运路径优化问题为研究对象,深入分析长大货物联运可行性因素与合理性因素,统筹考虑长大货物运到期限、碳排放和线路可改造等特性,以长大货物多式联运总运输成本和碳排放量最低为优化目标,构建基于线路限界、桥梁承重能力、换装设备能力制约的长大货物多式联运路径多目标优化模型,设计基于运输节点与运输方式的不规则棱柱模型,提出一种基于似三棱柱网络与遗传算法的长大货物联运路径优化算法。算例结果表明:文章所提出的方法较单一优化目标相比具有明显优势,能有效地解决长大货物联运路径优化问题。

The paper chooses decision-making method for multimodal transportation route as research topic. Based on the view of feasibility and rationality, the path optimization influence factors of multimodal transport for long and bulky cargo were analyzed. By considering the deadline of the cargo, carbon emission and transformation characteristics of constraint conditions, the minimum transport cost and carbon emissions were taken as constraint conditions, the line boundary, bridge bearing capacity and intermodal facilities capacity were taken as constraint conditions, the path optimization model of multimodal transportation for long and bulky cargo was set up. Based on transportation terminal and transportation mode, an analogic tri-pfim network model is presented, and a decisionmaking method for multimodal transportation path based on analogic tri-prism network and analogic tri-prim network for the long and bulky cargo is proposed. Then solve the problem by using genetic algorithm effectively.