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dc.contributor.authorMedbøen, Carl Axel Benjamin
dc.contributor.authorHolm, Magnus Bolstad
dc.contributor.authorMsakni, Mohamed Kais
dc.contributor.authorFagerholt, Kjetil
dc.contributor.authorSchütz, Peter
dc.date.accessioned2020-11-25T13:25:29Z
dc.date.available2020-11-25T13:25:29Z
dc.date.created2020-11-16T13:01:36Z
dc.date.issued2020
dc.identifier.issn1999-4893
dc.identifier.urihttps://hdl.handle.net/11250/2689591
dc.description.abstractHere we study a short-sea feeder network design problem based on mother and daughter vessels. The main feature of the studied system is performing transshipment of cargo between mother and daughter vessels at appropriate locations at sea. This operation requires synchronization between both types of vessels as they have to meet at the same location at the same time. This paper studies the problem of designing a synchronized feeder network, explicitly accounting for the effect of uncertain travel times caused by harsh weather conditions. We propose an optimization-simulation framework to find robust solutions for the transportation system. The optimization model finds optimal routes that are then evaluated by a discrete-even simulation model to measure their robustness under uncertain weather conditions. This process of optimization simulation is repeated until a satisfactory condition is reached. To find even better solutions, we include different performance-improving strategies by adding robustness during route generation or exploiting flexibility in sailing speed to recover from delays. We apply the solution method to a case based on realistic data from a Norwegian shipping company. The results show that the method finds near-optimal solutions that offer robustness against schedule perturbations due to harsh weather. They also highlight the importance of considering uncertainty when designing a short-sea feeder network with transshipment at sea.en_US
dc.language.isoengen_US
dc.publisherMDPIen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleCombining Optimization and Simulation for Designing a Robust Short-sea Feeder Networken_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.source.volume13en_US
dc.source.journalAlgorithmsen_US
dc.source.issue11en_US
dc.identifier.doi10.3390/a13110304
dc.identifier.cristin1848326
dc.description.localcodec 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).en_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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