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Optimization of Dispatching Strategies for Stacking Cranes Including Remarshaling Jobs
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 Title & Authors
Optimization of Dispatching Strategies for Stacking Cranes Including Remarshaling Jobs
Kim, Taekwang; Yang, Youngjee; Bae, Aekyoung; Ryu, Kwang Ryul;
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In container terminals, stacking yard is the place where import and export containers are temporarily stored before being loaded onto or after being discharged from a ship. Since all the containers go through the stacking yard in their logistic flow, the productivity of the terminal critically depends on efficient operation of stacking yard, which again depends on how well the stacking locations of the incoming containers are determined. However, a good location for stacking an incoming container later can turn out to be a bad one when that container is to be fetched out of the stacking yard, especially if some rehandling is required. This means that good locations for the containers are changing over time. Therefore, in most container terminals, the so-called remarshaling is done to move the containers from bad location to good locations. Although there are many previous works on remarshaling, they all assume that the remarshaling can be done separately from the main jobs when the cranes are idle for rather a long period of time. However, in reality, cranes are hardly available for a period long enough for remarshaling. This paper proposes a crane dispatching strategy that allows remarshaling jobs to be mixed together with the main jobs whenever an opportunity is detected. Experimental results by simulation reveals that the proposed method effectively contributes to the improvement of terminal productivity.
Automated Container Terminal;Stacking Yard;Crane Dispatching Strategy;Optimization;Remarshaling;
 Cited by
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한국항해항만학회지, 2016. vol.40. 3, pp.113-120 crossref(new window)
Remarshalling Plan Using Neighboring Bay in Container Terminal, Journal of Navigation and Port Research, 2016, 40, 3, 113  crossref(new windwow)
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