Are Neighborhood-level SUDS Worth it? An Assessment of the Economic Value of Sustainable Urban Drainage System Scenarios Using Cost-Benefit Analyses

作者: Daniel Johnson , Sylvie Geisendorf

DOI: 10.1016/J.ECOLECON.2018.12.024

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摘要: Abstract Sustainable urban drainage systems (SUDS) offer solutions to water quality and quantity problems in stormwater management areas addition numerous economic benefits terms of ecosystem services. Cost-benefit analyses (CBA) individual SUDS measures, such as green roofs living walls, are investigated, but complete for neighborhood-level application still missing. CBA applications can inform practitioners decision makers the proper assessment planned projects. This paper estimates value services a neighborhood Berlin, Germany, compares these typical cost found literature. Benefits quantified include both private social benefits. Three separate scenarios with different combinations measures same district compared their net present values (NPV), benefit-cost ratio (BCR) benefit efficiencies. Parameters NPV analysis also analyzed sensitivity analysis. Our results show positive NPVs BCRs above 1 one scenario an Inclusion yields only slightly improved BCRs. Overall, we demonstrate feasible management.

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