A mathematical model for scheduling and assignment of customers in hospital waste collection routes

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dc.contributor.authorLinfati, Rodrigo
dc.contributor.authorGatica, Gustavo
dc.contributor.authorEscobar, John Willmer
dc.date.accessioned2023-07-20T20:26:35Z
dc.date.available2023-07-20T20:26:35Z
dc.date.issued2021-11
dc.descriptionIndexación: Scopuses
dc.description.abstractThe collection, transport, and final disposal of hospital waste may cause contamination and disease if improperly handled. Therefore, such residues are hazardous to the health of waste collectors. These wastes are generated by public agencies, such as hospitals, family health centers, dialysis centers, and private healthcare providers. In this study, a mixed-integer linear programming model is proposed for monthly customer scheduling and route assignment. The proposed approach was fulfilled according to customers’ collection frequency, truck capacity, and customer geographical location. The proposed mathematical model successfully balanced the number of customers and the workload during each day. The effectiveness of the proposed model was tested on data obtained from a waste collection company. The model has been implemented in AMPL language, and the performance of commercial solvers, GUROBI and CPLEX, to obtain an optimal solution were tested. The results show the efficiency of the proposed approach to balance the workload concerning previous scheduling is done ad hoc at the company. The use of the formulated model provides an automatic procedure that was previously performed manually. The methodology can be adapted to other companies with similar requirements.es
dc.description.urihttps://www-scopus-com.recursosbiblioteca.unab.cl/record/display.uri?eid=2-s2.0-85119291646&origin=resultslist&sort=plf-f&src=s&nlo=&nlr=&nls=&sid=82f731e490a43d130aacb07d25036701&sot=aff&sdt=cl&cluster=scofreetoread%2c%22all%22%2ct%2bscopubyr%2c%222021%22%2ct%2bscosubtype%2c%22ar%22%2ct%2bscosubjabbr%2c%22CENG%22%2ct&sl=61&s=AF-ID%28%22Universidad+Andr%c3%a9s+Bello%22+60002636%29+AND+SUBJAREA%28CENG%29&relpos=7&citeCnt=2&searchTerm=#author-keywords
dc.identifier.citationApplied Sciences (Switzerland) Open AccessVolume 11, Issue 22 November-2 2021 Article number 10557es
dc.identifier.doi10.3390/app112210557
dc.identifier.issn20763417
dc.identifier.urihttps://repositorio.unab.cl/xmlui/handle/ria/51854
dc.language.isoenes
dc.publisherMDPIes
dc.rights.licenseAttribution 4.0 International (CC BY 4.0)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectCustomers frequencyes
dc.subjectCustomers schedulinges
dc.subjectGeographic clusteringes
dc.subjectHospital waste collectiones
dc.subjectMixed-integer linear programming modeles
dc.titleA mathematical model for scheduling and assignment of customers in hospital waste collection routeses
dc.typeArtículoes
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