Decomposition of a Combined Inventory and Time Constrained Ship Routing Problem
Transportation Science
Review: Industrial aspects and literature survey: Fleet composition and routing
Computers and Operations Research
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In this paper, an integrated optimization model is developed to improve the efficiency of coal shipping. The objective is (1) to determine the types of ships and the number of each type, (2) to optimize the ship routing, therefore, to minimize the total coal shipping cost. Meanwhile, an algorithm based on two-phase tabu search is designed to solve the model. Numerical tests show that the proposed method can decrease the unit shipping cost and the average ship delay, and improve the reliability of the coal shipping system.