Show simple item record

dc.contributor.authorEkici, Ali
dc.contributor.authorÖzener, Okan Örsan
dc.date.accessioned2020-11-12T09:01:58Z
dc.date.available2020-11-12T09:01:58Z
dc.date.issued2020-09
dc.identifier.issn0171-6468en_US
dc.identifier.urihttp://hdl.handle.net/10679/7085
dc.identifier.urihttps://link.springer.com/article/10.1007/s00291-020-00572-2
dc.description.abstractFast and equitable distribution of the humanitarian relief supplies is key to the success of relief operations. Delayed and inequitable deliveries can result in suffering of affected people and loss of lives. In this study, we analyze the routing operations for the delivery of relief supplies from a distribution center to the dispensing sites. We assume that the relief supplies to be distributed arrive at the distribution center in batches and are consumed at the dispensing sites with a certain daily rate. When forming delivery schedules, we use the ratio of the inventory to the daily consumption rate at the dispensing sites as our decision criterion. This ratio is called theslackand can be considered as the safety stock (when positive) in case of a delay in the deliveries. Negative value for theslackmeans the dispensing site has stock-outs. Our objective is to maximize the minimum value of thisslackamong all dispensing sites. This is equivalent to maximizing the minimum safety stock or minimizing the maximum duration of the stock-outs. Due to multi-period structure of the problem, it is modeled as a variant of theInventory Routing Problem. To address the problem, we propose a general framework which includes clustering, routing and improvement steps. The proposed framework considers the interdependence between all three types of decisions (clustering, routing and resource allocation) and makes the decisions in an integrated manner. We test the proposed framework on randomly generated instances and compare its performance against the benchmark algorithms in the literature. The proposed framework not only outperforms the benchmark algorithms by at least 1% less optimality gap but also provides high-quality solutions with around 2-3% optimality gaps.en_US
dc.language.isoengen_US
dc.publisherSpringer Natureen_US
dc.relation.ispartofOR Spectrum
dc.rightsrestrictedAccess
dc.titleInventory routing for the last mile delivery of humanitarian relief suppliesen_US
dc.typeArticleen_US
dc.peerreviewedyesen_US
dc.publicationstatusPublisheden_US
dc.contributor.departmentÖzyeğin University
dc.contributor.authorID(ORCID 0000-0002-9627-4780 & YÖK ID 124801) Ekici, Ali
dc.contributor.authorID(ORCID 0000-0002-9291-1877 & YÖK ID 21945) Özener, Örsan
dc.contributor.ozuauthorEkici, Ali
dc.contributor.ozuauthorÖzener, Okan Örsan
dc.identifier.volume42en_US
dc.identifier.issue3en_US
dc.identifier.startpage621en_US
dc.identifier.endpage660en_US
dc.identifier.wosWOS:000557949800003
dc.identifier.doi10.1007/s00291-020-00572-2en_US
dc.subject.keywordsRelief supplies distributionen_US
dc.subject.keywordsLast mile deliveryen_US
dc.subject.keywordsInventory routingen_US
dc.subject.keywordsClusteringen_US
dc.identifier.scopusSCOPUS:2-s2.0-85078273464
dc.contributor.authorMale2
dc.relation.publicationcategoryArticle - International Refereed Journal - Institutional Academic Staff


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record


Share this page