Use of Life Cycle Cost Analysis and Multiple Criteria Decision Aid Tools for Designing Road Vertical Profiles

dc.contributor.authorLoulizi, Amaraen
dc.contributor.authorBichiou, Youssefen
dc.contributor.authorRakha, Hesham A.en
dc.date.accessioned2019-12-20T15:02:14Zen
dc.date.available2019-12-20T15:02:14Zen
dc.date.issued2019-12-12en
dc.date.updated2019-12-20T14:10:29Zen
dc.description.abstractThe current design practice for the vertical profile of roads in rolling and mountainous terrains is to follow the existing grades in order to minimize earthwork costs. This means that the only criterion considered during the design phase is the initial cost. It would be preferable to include other criteria that are directly related to sustainability, particularly fuel consumption and CO<sub>2</sub> emissions. Therefore, this paper describes a proposed design procedure that starts by finding feasible alternatives with different grades. Then, a microsimulation traffic tool is used to simulate the movement of predicted vehicles (volume and type) over the different alternatives. The microsimulation tool provides reliable estimates of travel times, fuel consumption, and CO<sub>2</sub> emissions for the different alternatives. With these data, it is possible to use life cycle cost analysis (LCCA) or multiple criteria decision aid (MCDA) tools to select the &ldquo;optimal&rdquo; alternative. The proposed procedure was used on a case study involving a 6-km highway section with different proposed grades ranging from 2% to 8%. Using LCCA and an MCDA tool, it was revealed that the current design alternative is not the optimal alternative in most considered scenarios (various fuel values for LCCA and different &ldquo;Cost&rdquo; weights for MCDA).en
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationLoulizi, A.; Bichiou, Y.; Rakha, H. Use of Life Cycle Cost Analysis and Multiple Criteria Decision Aid Tools for Designing Road Vertical Profiles. Sustainability 2019, 11, 7127.en
dc.identifier.doihttps://doi.org/10.3390/su11247127en
dc.identifier.urihttp://hdl.handle.net/10919/96160en
dc.language.isoenen
dc.publisherMDPIen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectmicrosimulationen
dc.subjectfuel consumptionen
dc.subjectemissionsen
dc.subjectgeometric designen
dc.subjectlife cycle cost analysisen
dc.subjectmultiple criteria decision aiden
dc.titleUse of Life Cycle Cost Analysis and Multiple Criteria Decision Aid Tools for Designing Road Vertical Profilesen
dc.title.serialSustainabilityen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
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