Two decision models for berth allocation problem under uncertainty considering service level

Two decision models for berth allocation problem under uncertainty considering service level
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考虑服务水平的不确定性下泊位分配问题的两种决策模型

DOI:
10.1007/s10696-017-9295-5
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发表时间:
2017-09
影响因子:
2.7
通讯作者:
郑力
郑力
中科院分区:
工程技术3区
文献类型:
--
作者:
刘长春;项溪;郑力

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本文研究了泊位分配问题,即在一定的规划范围内,考虑不确定因素,主要包括停靠船舶的到达时间和运营时间,为必须在集装箱码头装卸的船舶分配一个码头空间和服务时间。基于冲突的概念,提出了两种服务水平,并建立了两种决策模型以最小化总运营成本,其中包括延误成本和非最优泊位成本。第一个模型满足特定场景的服务级别,第二个模型考虑所有场景的服务级别。针对所建模型的NP难问题,采用两阶段启发式算法进行求解。最后,通过大量的数值实验对所提出的两种模型和算法的性能进行了检验,以帮助港口规划者进行决策。
This paper examines the berth allocation problem, which is to assign a quay space and a service time to the vessels that have to be loaded and unloaded at a container terminal within a given planning horizon, with consideration of uncertain factors, mainly including the arrival and operation time of the calling vessels. Based on the concept of conflict, two kinds of service level are proposed and two decision models are constructed to minimize the total operational cost, which includes delay cost and non-optimal berthing location cost. The first model satisfies the service level of a specific scenario and the second one considers the service level across all scenarios. Due to the NP-hardness of the constructed model, a two-stage heuristics algorithm is employed to solve the problem. Finally, extensive numerical experiments are conducted to test the performances of the two proposed models and algorithm and help the port planners make decisions.
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