Avalanche Hazard Mitigation Strategies Assessed by Cost Effectiveness Analyses and Cost Benefit Analyses—evidence from Davos,Switzerland |
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| Authors: | Sven Fuchs Magdalena Thöni Maria Christina McAlpin Urs Gruber Michael Bründl |
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| Institution: | 1.Institute of Mountain Risk Engineering,University of Natural Resources and Applied Life Sciences,Wien,Austria;2.alpS – Centre for Natural Hazard Management,Innsbruck,Austria;3.WSL Swiss Federal Institute for Snow and Avalanche Research SLF,Davos Dorf,Switzerland |
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| Abstract: | This paper demonstrates the application of cost effectiveness analysis and cost benefit analysis to alternative avalanche
risk reduction strategies in Davos, Switzerland. The advantages as well as limitations of such analysis for natural hazards
planning are discussed with respect to 16 avalanche risk reduction strategies. Scenarios include risk reduction measures that
represent the main approaches to natural hazards planning in Switzerland, such as technical, organisational, and land use
planning measures. The methodologies used outline how concepts and techniques from risk analysis, hazard mapping, Geographic
Information System, and economics can be interdisciplinary combined. The results suggest important considerations, such as
possible sources of uncertainty due to different choices in the calculation of cost effectiveness ratio and net present value.
Given the parameters and assumptions, it seems as if the current approach to avalanche risk reduction in the study area approximates
to economic and cost efficiency and serves the aim of reducing risk to human fatalities. |
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| Keywords: | Cost effectiveness analysis Cost benefit analysis Risk analysis Natural hazards Avalanches Switzerland |
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