Container Slot Allocation and Perceived Slot Chartering Price
Container slot services mainly include:(i)serving cargo owners through slot allocation;and(ii)serving liner shipping companies through slot chartering.In order to increase the revenue of liner shipping companies while improving container slot utilization,this paper studies container slot allocation and perceived slot chartering price,by proposing a two-stage optimization method.In the first stage,the fleet deployment and slot allocation problem is studied,and a mixed integer linear programming model is constructed with the objective of maximizing the total revenue of the liner shipping company.In the second stage,the inverse optimization technique is used to determine the perceived slot chartering price,based on the solution of the first stage model.Finally,numerical experiments and sensitivity analysis are carried out based on the Asia-Europe-Oceania container transportation network,which contains 11 ship routes and 46 ports.The results show that the fleet deployment results are sensitive to the changes in container demands,while not sensitive to small fluctuations of container market freight rates.Perceived slot chartering prices are sensitive to both the changes in container demands and container market freight rate fluctuations.Liner shipping companies should always be aware of the container market dynamics,in order to determine suitable strategies for fleet deployment,slot allocation,and slot chartering.
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