dc.contributor.author | Bruaset, Stian | |
dc.contributor.author | Rygg, Håkon | |
dc.contributor.author | Sægrov, Sveinung | |
dc.date.accessioned | 2018-07-11T07:05:53Z | |
dc.date.available | 2018-07-11T07:05:53Z | |
dc.date.created | 2018-06-14T10:05:58Z | |
dc.date.issued | 2018 | |
dc.identifier.issn | 2071-1050 | |
dc.identifier.uri | http://hdl.handle.net/11250/2505089 | |
dc.description.abstract | It is generally difficult to assess the performance of an infrastructure with a substantially longer life span than economic models can handle, and the life cycle concepts in urban water systems are normally limited to single-asset projects. In order to explore the long-term impact of urban water infrastructure rehabilitation strategies, a life cycle approach for survival functions is suggested. A life cycle factor based on survival functions is introduced, which is a measuring value of the total expected service life of all pipes within a group of pipes. Another factor, termed the sustainability factor, is based on the relationship between the life cycle factor and a rehabilitation reference method, which makes it possible to correct the long-term performance of rehabilitation methods based on their expected service life provision. A case study presents the implications for investments in infrastructure rehabilitation when applying the sustainability factor in long-term planning, and shows the importance of considering the service life of rehabilitation methods when planning renewal interventions that minimize costs over their life cycles. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.publisher | MDPI | nb_NO |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.title | Reviewing the long-term sustainability of urban water systems rehabilitation strategies with an alternative approach | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.description.version | publishedVersion | nb_NO |
dc.source.volume | 10 | nb_NO |
dc.source.journal | Sustainability | nb_NO |
dc.source.issue | 6 | nb_NO |
dc.identifier.doi | 10.3390/su10061987 | |
dc.identifier.cristin | 1591107 | |
dc.description.localcode | © 2018 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/). | nb_NO |
cristin.unitcode | 194,64,91,0 | |
cristin.unitname | Institutt for bygg- og miljøteknikk | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |