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Evaluating Construction-based Greenhouse Gas Emissions of Alternative Road Alignments
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.ORCID iD: 0000-0002-1172-5694
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Industrilized and sustainable construction.
Number of Authors: 2
2016 (English)In: Proceedings of the 2016 International Conference on Construction and Real Estate Management, 2016Conference paper, (Refereed)
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.

Place, publisher, year, edition, pages
2016.
National Category
Construction Management
Research subject
Construction Engineering and Management
Identifiers
URN: urn:nbn:se:ltu:diva-61042OAI: oai:DiVA.org:ltu-61042DiVA: diva2:1055555
Conference
2016 International Conference on Construction and Real Estate Management (ICCREM 2016)
Available from: 2016-12-12 Created: 2016-12-12 Last updated: 2017-03-14Bibliographically approved
In thesis
1. Reducing Carbon Dioxide Emissions in Transport Infrastructure Projects
Open this publication in new window or tab >>Reducing Carbon Dioxide Emissions in Transport Infrastructure Projects
2017 (English)Licentiate thesis, comprehensive summary (Other academic)
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.

Place, publisher, year, edition, pages
Luleå: Luleå University of Technology, 2017. 82 p.
Series
Licentiate thesis / Luleå University of Technology, ISSN 1402-1757
National Category
Construction Management
Research subject
Construction Engineering and Management
Identifiers
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
Supervisors
Available from: 2017-03-02 Created: 2017-03-01 Last updated: 2017-05-22Bibliographically approved

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Citation style
  • apa
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Output format
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