考虑航线稳定性的集装箱公水联运路径优化研究
Optimization study of container transportation route of highway and waterway intermodal transport considering route stability
-
摘要: 跨境电商物流的发展落后于跨境电商的发展,其中运输时间的不稳定性是亟待解决的问题,考虑到水路运输时间预测的准确率较低,引入基于船舶AIS轨迹大数据计算得到的平均航行天数稳定性指标,将该指标用于衡量水路运输时间的准确性,并以该指标作为目标函数,运输时间和运输成本为约束条件,建立稳定性优化模型。为验证模型求解结果的有效性,另以运输时间为目标函数,运输成本为约束条件,建立时效性优化模型,以运输成本为目标函数,运输时间为约束条件,建立经济性优化模型。以义乌到马德里为例,计算表明稳定性优化模型求解的路径是有效的,其稳定性指标低于时效性和经济性优化模型求解路径的稳定性指标。Abstract: The development of cross-border E-commerce logistics is lagging behind the development of cross-border Ecommerce,in which the instability of transportation time is a problem that needs to be solved urgently.Considering that the accuracy of the prediction of the waterway transportation time is low,the stability index of the average number of sailing days obtained from the calculation of the big data of ship’ s AIS trajectory is introduced,which will be used for the measurement of the accuracy of the waterway transportation time,and the index is used as the objective function,with the transportation time and the stability optimization model is established with this index as the objective function,transport time and transport cost as the constraints.In order to verify the effectiveness of the model solution results,another transport time as the objective function,transport costs as constraints,the establishment of timeliness optimization model,transport costs as the objective function,transport time as constraints,the establishment of economic optimization model.Taking Yiwu to Madrid as an example,the calculation shows that the path solved by the stability optimization model is effective,and its stability index is lower than the stability index of the path solved by the timeliness and economy optimization model.