Optimization for Static Wagon-Flow Allocation in Bidirectional Marshalling Station
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摘要: 定义了配流时间间隔和有效交换配流列车等概念.建立了双向编组站静态配流的双层多目标决策模型,目标函数包括排除与编组去向不符以及接续时间不够的车流形成的总代价、车辆在站总停留时间和交换车数量.用禁忌搜索策略和配流网络相结合的算法求解.算例证明,通过调整到达列车的接入场,可找出有效配流方案,从而实现双向编组站两个解编系统的配流优化,使除摘挂列车外的所有出发列车满轴和正点发车.Abstract: Definitions such as wagon-flow allocation time spans and feasible wagon-flows, etc,were presented.A bi-level multi-objective decision model was established,in which the objective functions include the total cost for removing wagons to unwanted directions and those without enough time to be transferred to a proper yard,and number of wagons to be transferred.The model was solved using a tabu search strategy and a wagon-flow allocation network.An example verifies that a feasible wagon-flow allocation scheme can be determined through directing arrival trains to a proper yard to realize wagon-flow allocation optimization of two break-up and make-up systems in a bidirectional marshalling station,and to make all departure trains,except pick-up and drop trains,fully-loaded and on time.
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