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Natural hazard susceptibility assessment for road planning using spatial multi-criteria analysis
KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Land and Water Resources Engineering.ORCID iD: 0000-0002-3614-671X
KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Sustainability Assessment and Management. (Environmental Management and Assessment)ORCID iD: 0000-0002-1640-8946
KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Water and Environmental Engineering.
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2017 (English)In: Environmental Management, ISSN 0364-152X, E-ISSN 1432-1009, Vol. 60, no 5, 823-851 p.Article in journal (Refereed) Published
Abstract [en]

Inadequate infrastructural networks can be detrimental to society if transport between locations becomes hindered or delayed, especially due to natural hazards which are difficult to control. Thus determining natural hazard susceptible areas and incorporating them in the initial planning process, may reduce infrastructural damages in the long run. The objective of this study was to evaluate the usefulness of expert judgements for assessing natural hazard susceptibility through a spatial multi-criteria analysis (SMCA) approach using hydrological, geological and land use factors. To utilize SMCA for decision support, an analytic hierarchy process (AHP) was adopted where expert judgements were evaluated individually and in an aggregated manner. The estimates of susceptible areas were then compared with the methods weighted linear combination (WLC) using equal weights and factor interaction method (FIM). Results showed that inundation received the highest susceptibility. Using expert judgement showed to perform almost the same as Equal weighting where the difference in susceptibility between the two for inundation was around 4%. The results also showed that downscaling could negatively affect the susceptibility assessment and be highly misleading. Susceptibility assessment through SMCA is useful for decision support in early road planning despite its limitation to the selection and use of decision rules and criteria. A natural hazard SMCA could be used to indicate areas where more investigations need to be undertaken from a natural hazard point of view, and to identify areas thought to have higher susceptibility along existing roads where mitigation measures could be targeted after in-situ investigations.

Place, publisher, year, edition, pages
Springer, 2017. Vol. 60, no 5, 823-851 p.
National Category
Environmental Sciences
Research subject
Land and Water Resources Engineering
Identifiers
URN: urn:nbn:se:kth:diva-210692DOI: 10.1007/s00267-017-0912-6Scopus ID: 2-s2.0-85027678132OAI: oai:DiVA.org:kth-210692DiVA: diva2:1119295
Funder
Swedish Research Council Formas
Note

QC 20171024

Available from: 2017-07-03 Created: 2017-07-03 Last updated: 2017-11-10Bibliographically approved

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