复合联运物流运输网络建模与路径优化

Modeling and Path Optimization of Composite Intermodal Logistics Transportation Network

在全球经济一体化背景下,物流行业成为不可或缺的经济支柱之一,在经济中的作用不断显现,复合联运逐渐成为物流行业的重要运输方式。以空铁海复合联运作为研究对象,构建不同的搜索空间,确定边界条件并分析货运影响参数,包括时间、成本、距离。以遗传算法为原则,求解建立空铁海复合联运模型并进行路径优化。确定3组节点组,每组都包含普通货物、特殊货物、航线拥堵3种情况,分别优化成本、时间、距离,为复合联运业务提供路径选择依据。通过分析,在规定的搜索空间内分别选出了最优时间路线、最优成本路线、最优距离路线。期望可以在物流运输过程中实现降本增效、减少风险、提高行业竞争力的目的。

In the context of economic integration,the logistics industry has become one of the economic pillars,and composite intermodal transportation has become an important mode of transportation in the logistics industry.The air-rail-sea composite operation is used as the research object,different search spaces are constructed,and the boundary conditions are determined and analyze freight impact parameters:time,cost,distance.Based on the genetic algorithm,the established air-rail-sea composite transport model was solved and the path optimization was carried out.Three groups of node groups were identified,each of which included three situations:general cargo,special cargo,and route congestion,which optimized the cost,time and distance respectively,and provided a basis for the path selection of composite intermodal transport business.Through analysis,the optimal time route,the optimal cost route and the optimal distance route in the specified search space are selected.It is expected that the purpose of reducing costs and increasing efficiency,reducing risks and improving industry competitiveness can be achieved in the process of logistics and transportation.