考虑班期限制的货物多式联运路径优化研究  

Study on the route optimization under schedule limits of multimodal transport of goods

作　　者：彭勇[1] 刘星[1] 罗佳[1] 贺琳[1] 

机构地区：[1]重庆交通大学交通运输学院,重庆400074

出　　处：《中国科技论文》2017年第7期787-792,共6页China Sciencepaper

基　　金：重庆市教育改革重大项目(151014)

摘　　要：统筹考虑有班期限制的货物多式联运路径优化问题的影响因素,以总运输费用、总运输时间及总运输风险为优化目标,提出考虑班期限制的货物多式联运路径优化模型,运用遗传算法对优化模型进行求解,并进行算例验证分析。计算结果表明:其他条件相同时,考虑班期限制的货物多式联运最优运输费用、时间、风险分别为64 100元、26.63h、86.61,不考虑班期限制的货物多式联运最优运输费用、时间、风险分别为63 950元、21.30h、91.48。可见,铁路等运输方式存在的发班时间对运输方案决策影响较大,考虑班期限制的多式联运路径优化模型更为合理。Optimization factors of the schedule limits on multimodal transport path were evaluated in this study. The total trans-portation cost, total transportation time and total transportation risk were selected as the optimization objective and the schedule limits based multimodal transport path optimization model was proposed. The genetic algorithm was designed to solve the optimi-zation model and a numerical example was given for verification The results showed that when other conditions remain constant, the optimal goods transportation cost, time and risk were 64 100 yuan, 26. 63 h, 86. 61,respectively, with the consideration of the schedule constraints optimal multimodal transport. The optimal goods transportation cost, time and risk were 63 950 yuan, 21. 30 h,91. 48,respectively, without the consideration of the schedule constraints optimal multimodal transport. Thus,there was great influence of railway and other modes of transport of class time on transportation decision Schedule limits multimodal transport path optimization model was more reasonable.

关 键 词：综合交通运输 路径优化 遗传算法 班期限制 多式联运 

分 类 号：U116.2[交通运输工程]