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Assessing Embodied Energy and Greenhouse Gas Emissions in Infrastructure Projects
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Byggkonstruktion och -produktion.ORCID-id: 0000-0002-1172-5694
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Byggkonstruktion och -produktion.ORCID-id: 0000-0001-9524-4814
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Byggkonstruktion och -produktion.ORCID-id: 0000-0002-4695-5369
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Byggkonstruktion och -produktion.ORCID-id: 0000-0002-5661-5237
2015 (Engelska)Ingår i: Buildings, ISSN 2075-5309, E-ISSN 2075-5309, Vol. 5, nr 4, s. 1156-1170Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Greenhouse gas (GHG) emissions from construction processes are a serious concern globally. Of the several approaches taken to assess emissions, Life Cycle Assessment (LCA) based methods do not just take into account the construction phase, but consider all phases of the life cycle of the construction. However, many current LCA approaches make general assumptions regarding location and effects, which do not do justice to the inherent dynamics of normal construction projects. This study presents a model to assess the embodied energy and associated GHG emissions, which is specifically adapted to address the dynamics of infrastructure construction projects. The use of the model is demonstrated on the superstructure of a prefabricated bridge. The findings indicate that Building Information Models/Modeling (BIM) and Discrete Event Simulation (DES) can be used to efficiently generate project-specific data, which is needed for estimating the embodied energy and associated GHG emissions in construction settings. This study has implications for the advancement of LCA-based methods (as well as project management) as a way of assessing embodied energy and associated GHG emissions related to construction.

Ort, förlag, år, upplaga, sidor
2015. Vol. 5, nr 4, s. 1156-1170
Nationell ämneskategori
Byggproduktion
Forskningsämne
Byggproduktion
Identifikatorer
URN: urn:nbn:se:ltu:diva-6983DOI: 10.3390/buildings5041156ISI: 000215245400003Scopus ID: 2-s2.0-84958780316Lokalt ID: 55080bc0-6a9e-4588-9916-16890c00664bOAI: oai:DiVA.org:ltu-6983DiVA, id: diva2:979869
Anmärkning
Validerad; 2015; Nivå 1; 20151016 (jankra)Tillgänglig från: 2016-09-29 Skapad: 2016-09-29 Senast uppdaterad: 2019-03-26Bibliografiskt granskad
Ingår i avhandling
1. Reducing Carbon Dioxide Emissions in Transport Infrastructure Projects
Öppna denna publikation i ny flik eller fönster >>Reducing Carbon Dioxide Emissions in Transport Infrastructure Projects
2017 (Engelska)Licentiatavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

On- and off-site construction activities during transport infrastructure projectsare major contributors to greenhouse gas (GHG) emissions. The SwedishTransport Administration (STA) has stated the goal of gradually reducing itsemissions from transport infrastructure projects to zero by 2050. However,current life cycle assessment (LCA)-based approaches for estimating GHGemissions are static and location-independent, and thus do not account for thedynamics of construction. Some project-based methods have been proposed,but there is little guidance and insight available to facilitate theirimplementation in real projects during project planning.This thesis aims to explore how CO2 emissions can be reduced during differentstages of the planning process for transport infrastructure. The analysis focuseson emissions during project execution, i.e. on- and off-site constructionactivities including material production, and transportation. An exploratoryresearch approach is used to develop practical CO2 reduction methods thatcould be implemented during the feasibility studies, the design stage, and theprocurement stage of the planning process. These methods and models aredeveloped and demonstrated in case studies. This is a similar to the prototypingmethod in which early drafts of a new system are developed and tested toenable further development into a finalized system. The findings show thatconsiderable CO2 reductions can be achieved if project alternatives areevaluated systematically during the planning process. Although most majordecisions are made during the early stages of the planning process, later stagesshould not be ignored because these offer opportunities to include moredefinitive project data and thereby improve the certainty of the assessments.Future research in this area should look at the entire planning process up to thestart of construction.

Ort, förlag, år, upplaga, sidor
Luleå: Luleå University of Technology, 2017. s. 82
Serie
Licentiate thesis / Luleå University of Technology, ISSN 1402-1757
Nationell ämneskategori
Byggproduktion
Forskningsämne
Byggproduktion
Identifikatorer
urn:nbn:se:ltu:diva-62225 (URN)978-91-7583-829-8 (ISBN)978-91-7583-830-4 (ISBN)
Presentation
2017-03-29, F1031, Luleå, 13:00
Opponent
Handledare
Tillgänglig från: 2017-03-02 Skapad: 2017-03-01 Senast uppdaterad: 2017-11-24Bibliografiskt granskad
2. Mitigating Carbon Emissions during the Planning and Execution of Transport Infrastructure Projects
Öppna denna publikation i ny flik eller fönster >>Mitigating Carbon Emissions during the Planning and Execution of Transport Infrastructure Projects
2019 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Alternativ titel[sv]
Metoder för att minska koldioxidutsläpp i planering och genomförande av transportinfrastrukturprojekt
Ort, förlag, år, upplaga, sidor
Luleå: Luleå University of Technology, 2019
Serie
Doctoral thesis / Luleå University of Technology 1 jan 1997 → …, ISSN 1402-1544
Nationell ämneskategori
Infrastrukturteknik Byggproduktion
Forskningsämne
Byggproduktion
Identifikatorer
urn:nbn:se:ltu:diva-73324 (URN)978-91-7790-338-3 (ISBN)978-91-7790-339-0 (ISBN)
Disputation
2019-06-03, Auditorium, F231, Luleå, 10:00 (Svenska)
Opponent
Handledare
Tillgänglig från: 2019-03-27 Skapad: 2019-03-26 Senast uppdaterad: 2019-05-15Bibliografiskt granskad

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Förlagets fulltextScopushttp://www.mdpi.com/2075-5309/5/4/1156

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Krantz, JanLarsson, JohanLu, WeizhuoOlofsson, Thomas

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