Publication
Large scale railway renewal planning with a multiobjective modeling approach
| dc.contributor.author | Sousa, Nuno | |
| dc.contributor.author | Almeida, Luís Alçada | |
| dc.contributor.author | Rodrigues, João Coutinho | |
| dc.date.accessioned | 2019-02-08T17:23:01Z | |
| dc.date.available | 2019-02-08T17:23:01Z | |
| dc.date.issued | 2018-08-24 | |
| dc.description | Conferência realizada na Filândia, Helsinquia, de 20-24 de agosto de 2018 | pt_PT |
| dc.description.abstract | A multiobjective modeling approach for managing large scale railway infrastructure asset renewal is presented. An optimized intervention project schedule is obtained considering operational constraints in a three objectives model: evenly spreading investment throughout multiple years, minimizing total cost, minimizing work start postponements on higher priority railway sections. The MILP model was based on a real world case study; the objectives and constraints specified by an infrastructure management company. Results show that investment spreading greatly influences the other objectives and that total cost fluctuations depend on the overall condition of the railway infrastructure. The model can produce exact efficient solutions in reasonable time, even for very large-sized instances (a test network of similar size to the USA railway network, the largest in the world). The modeling approach is therefore a very useful, practical methodology, for generating optimized solutions and analyzing trade-offs among objectives, easing the task of ultimately selecting a solution and produce the works schedule for field implementation. | pt_PT |
| dc.description.version | info:eu-repo/semantics/publishedVersion | pt_PT |
| dc.identifier.doi | 10.4230/OASIcs.ATMOS.2018.2 | pt_PT |
| dc.identifier.uri | http://hdl.handle.net/10400.2/7940 | |
| dc.language.iso | eng | pt_PT |
| dc.peerreviewed | yes | pt_PT |
| dc.publisher | OASICS - OpenAccess Series in Informatics | pt_PT |
| dc.relation.publisherversion | http://drops.dagstuhl.de/opus/volltexte/2018/9707/ | pt_PT |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | pt_PT |
| dc.subject | Rail infrastructure | pt_PT |
| dc.subject | Renewal maintenance | pt_PT |
| dc.subject | Multiobjective modeling | pt_PT |
| dc.title | Large scale railway renewal planning with a multiobjective modeling approach | pt_PT |
| dc.type | conference object | |
| dspace.entity.type | Publication | |
| oaire.citation.conferencePlace | ALGO 2018, track: ATMOS 2018, Helsinki | pt_PT |
| oaire.citation.title | Proceedings of the 18th Workshop on Algorithmic Approaches for Transportation Modelling, Optimization, and Systems (ATMOS 2018) | pt_PT |
| person.familyName | Sousa | |
| person.familyName | Alçada Tomás de Almeida | |
| person.familyName | Coutinho-Rodrigues | |
| person.givenName | Nuno | |
| person.givenName | Luís Miguel | |
| person.givenName | João | |
| person.identifier.ciencia-id | E914-E920-B2A0 | |
| person.identifier.ciencia-id | 3612-8483-7FEF | |
| person.identifier.ciencia-id | FA15-6891-730C | |
| person.identifier.orcid | 0000-0002-2681-5035 | |
| person.identifier.orcid | 0000-0003-1272-9053 | |
| person.identifier.orcid | 0000-0001-9311-5584 | |
| person.identifier.rid | F-5307-2014 | |
| person.identifier.rid | F-5338-2014 | |
| person.identifier.scopus-author-id | 7003438443 | |
| person.identifier.scopus-author-id | 7801471659 | |
| rcaap.rights | openAccess | pt_PT |
| rcaap.type | conferenceObject | pt_PT |
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