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Annual climate impact and primary energy use of Swedish transport infrastructure
KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Sustainability Assessment and Management.ORCID iD: 0000-0002-0231-7111
Swedish Transport Adm, Borlange, Sweden..
KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Sustainability Assessment and Management.
KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Sustainability Assessment and Management.ORCID iD: 0000-0002-5535-6368
2019 (English)In: European Journal of Transport and Infrastructure Research, ISSN 1567-7133, E-ISSN 1567-7141, Vol. 19, no 2, p. 77-+Article in journal (Refereed) Published
Abstract [en]

By 2045, Sweden is to have zero net emissions of greenhouse gases. To reach this goal, stakeholders involved in planning and construction of Swedish transport infrastructure aim to half their climate impact by 2030. Planning for emission reduction measures require network level studies showing environmental impacts of the infrastructure network. Previous studies do not allow assessment of current hotspots in the infrastructure network, which limits their relevance for decision-support in this question. The aim of this paper is to assess the current annual climate impact and primary energy use of Swedish transport infrastructure by using a methodological approach based on life cycle assessment. The scope includes new construction and management (operation, maintenance, and reinvestment) of existing roads, railways, airports, ports, and fairway channels. The annual climate impact was estimated to 2.8 million tonnes carbon dioxide equivalents and the annual primary energy use was estimated to 27 terawatt hours. Mainly road and rail infrastructure contributed to these impacts. Environmental hotspots of the infrastructure network were management of the infrastructure stock (particularly reinvestment of road and rail infrastructure) and material production (particularly production of asphalt, steel, and concrete). If climate targets are to be met, these areas are particularly important to address. Additional research on impacts of small construction measures, the size of biogenic carbon emissions (in standing biomass as well as soil carbon), and the use and impacts of asphalt for road construction and management would further increase the understanding of impacts related to Swedish transport infrastructure at the network level.

Place, publisher, year, edition, pages
2019. Vol. 19, no 2, p. 77-+
Keywords [en]
climate impact, energy use, life cycle assessment, network level, Sweden, transport infrastructure
National Category
Other Environmental Engineering
Identifiers
URN: urn:nbn:se:kth:diva-255372ISI: 000474896700001Scopus ID: 2-s2.0-85071697384OAI: oai:DiVA.org:kth-255372DiVA, id: diva2:1339603
Note

QC 20190730

Available from: 2019-07-30 Created: 2019-07-30 Last updated: 2019-10-04Bibliographically approved

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Liljenström, CarolinaÅkerman, JonasBjörklund, Anna

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