Avalanche Hazard Mitigation Strategies Assessed by Cost Effectiveness Analyses and Cost Benefit Analyses鈥攅vidence from Davos, Switzerland
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- 作者：Sven Fuchs ; Magdalena Th枚ni ; Maria Christina McAlpin ; Urs Gruber and Michael Br眉ndl
- 关键词：Cost effectiveness analysis ; Cost benefit analysis ; Risk analysis ; Natural hazards ; Avalanches ; Switzerland
- 刊名：Natural Hazards
- 出版时间：April, 2007
- 出版年：2007
- 期刊代码：33_0921030X
- 类别：soc
- 卷：41
- 期：1
- 页码：113-129
- 数据来源：sp
摘要
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.