Downstream logistics optimization at EWOS Norway

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dc.contributor.authorBranda, M.
dc.contributor.authorHaugen, K. K
dc.contributor.authorNovotný, .J.
dc.contributor.authorOlstad, A.
dc.coverage.issue2cs
dc.coverage.volume6cs
dc.date.accessioned2019-01-02T12:37:16Z
dc.date.available2019-01-02T12:37:16Z
dc.date.issued2017cs
dc.description.abstractThe Norwegian company EWOS AS produces sh feed for the salmon farming industry, supplying approximately 300 customers spread along the coast of Norway. The feed is produced at three factory locations and distributed by a eet of 10 dedicated vessels. The high seasonality of the demand and the large number of customers make the distribution planning a substantial challenge. EWOS handles it by operating a system of mostly xed routes with decentralized planning at each factory. The distribution can be described as a multi-depot vehicle routing problem with time windows, multiple vehicle usage, inter-depot routes, heterogeneous eet and a rolling horizon. The paper presents a mathematical model for this problem, which is solved by heuristics and meta heuristics. Based on detailed historical data collected by EWOS during the autumn of 2010, the model has proposed a dynamic set of routes with a signi cant reduction of travelled distance { close to 30% { and an increase of average vessel ll-rate { from 60% up to 95%. This implies a substantial fuel saving, with a positive environmental impact, and also a potential for downscaling the eet, with additional considerable cost savings for the company.en
dc.formattextcs
dc.format.extent127-141cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationMathematics for Applications. 2017 vol. 6, č. 2, s. 127-141. ISSN 1805-3629cs
dc.identifier.doi10.13164/ma.2017.08en
dc.identifier.issn1805-3629
dc.identifier.urihttp://hdl.handle.net/11012/137257
dc.language.isoencs
dc.publisherVysoké učení technické v Brně, Fakulta strojního inženýrství, Ústav matematikycs
dc.relation.ispartofMathematics for Applicationsen
dc.relation.urihttp://ma.fme.vutbr.cz/archiv/6_2/ma_6_2_branda_et_al_final.pdfcs
dc.rights© Vysoké učení technické v Brně, Fakulta strojního inženýrství, Ústav matematikycs
dc.rights.accessopenAccessen
dc.subjectvehicle routing problemen
dc.subjectmulti depoten
dc.subjecttime windowsen
dc.subjectinter-depot routesen
dc.subjectmultiple vehicle usageen
dc.titleDownstream logistics optimization at EWOS Norwayen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.departmentÚstav matematikycs
eprints.affiliatedInstitution.facultyFakulta strojního inženýrstvícs
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