基于空轨接驳的铁水联运港口水平运输设备联合调度优化

Integrated Scheduling Optimization of Horizontal Transportation Equipment in Railway-waterway Intermodal Port Based on Air-rail Connection

摘要:

针对目前铁水联运港口因码头与铁路衔接不畅而造成的“港强铁弱”问题，提出一种基于空轨接驳的自动化集装箱码头运输体系（ACTAR）。通过引入单线、双向运行的空轨集疏运作业系统，研究多式联运集装箱转运作业流程及效率。结合集装箱水平运输作业特性，进行空轨货运动车（TGV）与自动导引运输车（AGV）的联合调度优化。构建以运输体系最大完工时间和总延误时间最小化为目标的多目标线性整数规划模型，采用非支配排序遗传算法Ⅱ（NSGA-Ⅱ）进行仿真系统求解。结果表明，提出的模型和算法能够使TGV与AGV之间实现并行与无缝协同作业，TGV与AGV的配置数量均存在最优阈值，超限将导致运输体系作业效率提升幅度较低甚至劣化，两者的数量匹配是影响水平运输设备联合调度优化结果的关键因素。

Abstract:

Aiming at the “strong port and weak railway” issue caused by the inefficient railway-waterway intermodal connectivity in current port-railway systems， an automated container terminal system based on air-rail connection （ACTAR） was proposed. By introducing a monorail and two-way operation system of air-rail collection and distribution， the operation process and efficiency of multimodal container transshipment were studied. Combined with the characteristics of container horizontal transportation operation， the joint scheduling optimization of track guided freight vehicle （TGV） and automatic guided vehicle （AGV） was conducted. A multi-objective linear integer programming model was built to minimize the maximum completion time and total delay time of the transportation system. The non-dominated sorting genetic algorithm Ⅱ （NSGA-Ⅱ） was used to solve the simulation system. The results show that the proposed model and algorithm can realize the parallel and seamless collaborative operation between TGV and AGV. There is an optimal threshold for the configuration number of TGV and AGV. Exceeding the limit will lead to a lower or even worse improvement in the operation efficiency of the transportation system. The number matching of the two is a key factor affecting the integrated scheduling optimization results of horizontal transportation equipment.