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Evaluating Construction-based Greenhouse Gas Emissions of Alternative Road Alignments
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Industriellt och hållbart byggande.ORCID-id: 0000-0002-1172-5694
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Industriellt och hållbart byggande.
Antal upphovsmän: 22017 (Engelska)Ingår i: ICCREM 2016: BIM Application and Offsite Construction - Proceedings of the 2016 International Conference on Construction and Real Estate Management 2016 / [ed] Wang Y.,Al-Hussein M.,Shen G.Q.P.,Zhu Y., Reston, VA: American Society of Civil Engineers (ASCE), 2017, s. 527-534Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

Road projects generally begin with broad investigations and progressively advance towards more detailed and immediate issues. Road corridors, which represent rough locations of alternative road alignments, are usually identified, evaluated and compared in early planning stages. Commonly at this stage, costs estimates of the identified road alignment are made whereas their environmental impacts, such as greenhouse gas (GHG) emissions, often are insufficiently accounted for. GHG emissions caused by the construction process are frequently ignored altogether. Despite indications that benefits of decisions and measures can be considerably higher if implemented in early planning stages, much emphasis is put on later stages. Our study presents an approach for estimating project-based GHG emissions of alternative alignments in early planning stages. The findings indicate that if adopted in the planning process, the approach can support projects in reducing their GHG emissions.

Ort, förlag, år, upplaga, sidor
Reston, VA: American Society of Civil Engineers (ASCE), 2017. s. 527-534
Nationell ämneskategori
Byggproduktion
Forskningsämne
Byggproduktion
Identifikatorer
URN: urn:nbn:se:ltu:diva-61042DOI: 10.1061/9780784480274.063Scopus ID: 2-s2.0-85029598365ISBN: 9780784480274 (tryckt)OAI: oai:DiVA.org:ltu-61042DiVA, id: diva2:1055555
Konferens
2016 International Conference on Construction and Real Estate Management, ICCREM 2016, Edmonton, Canada, 29 September - 1 October 2016
Tillgänglig från: 2016-12-12 Skapad: 2016-12-12 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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Krantz, JanJohansson, Tim

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