集装箱码头间互拖的集卡甩挂运输调度问题

集装箱码头间的互拖是一种促进相邻码头资源重新组织与优化的协作方式,集装箱甩挂运输能够解耦互拖与港内作业之间的复杂耦合关系。为了提高互拖的集装箱甩挂运输的有效性,满足码头间协调的时间要求和对集卡资源的有效利用,提出了互拖集卡甩挂运输调度的两阶段方法。首先建立互拖任务之间的时间关系网络,然后在此基础上建立集卡调度的混合整数规划模型。算例分析说明了该方法的有效性;演示集卡作业任务序列,分析其码头作业量分布对于港内作业调度的影响。研究结果提供了码头间互拖集卡甩运输的一种参考方法。

Scheduling of Container Truck-and-Trailer Transport between Two Ports

Mutual transport among container ports cooperatively enhances the reorganization and re-optimization of operational resources among neighboring ports.In order to enhance the validity of mutual transport by container truck-and-trailer transport,and to satisfy the time constraints,a two-stage approach is proposed for scheduling container trucks for mutual transport.First,a time relationship matrix is built among mutual transport tasks;second,a mixed integer linear programming model is built for container trucks.Numeric samples are employed to show the validity of the approach,and demonstrate the sequences of the tasks for trucks.Moreover,the influences of distribution of mutual transport tasks to operations scheduling within ports are analyzed.The result provides a reference approach for scheduling truck-and-trailer container trucks for bi-port mutual transport.