关键词: 交通运输工程；海铁转运；调度优化；改进免疫遗传算法

Abstract: Container transshipment, as a critical link connecting maritime and railway transportation, whose efficiency directly influences the smooth operation of the whole logistics chain. Shortening container dwell time at ports, optimizing equipment operation sequences and improving transshipment efficiency are essential for achieving efficient sea-rail intermodal transportation. However, the existing studies often overlook the consideration of the complete container transshipment process and the impact of equipment idle time. In response, aiming at the whole process from ship unloading to storage yard and then to railway line, a mathematical model was constructed with the objective function of minimizing the total operation completion time, to address practical issues such as continuous operation constraints, no-load waiting time and specific operation position. The improved immune genetic algorithm (especially the clonal antibody selection mechanism and adaptive parameter adjustment strategy) was used to solve the problem. After a series of optimization and comparison, it is demonstrated that the proposed method can more effectively find the optimal or near-optimal solutions, achieving the shortest total operational completion time and the corresponding equipment scheduling plans. The research results not only help to significantly reduce the processing cycle of containers in ports, but also promote energy conservation and emission reduction.

Key words: traffic and transportation engineering; sea-rail transfer; scheduling optimization; improved immune genetic algorithm