Reliable, Resilient and Sustainable Urban Drainage Systems: An Analysis of Robustness under Deep Uncertainty.
Reliable, Resilient and Sustainable Urban Drainage Systems: An Analysis of Robustness under Deep Uncertainty.
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DOI：
10.1021/acs.est.8b01193
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发表时间：
2018-07
影响因子：
11.4
通讯作者：
A. Casal-Campos;S. Sadr;G. Fu;D. Butler
中科院分区：
文献类型：
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作者：
A. Casal-Campos;S. Sadr;G. Fu;D. Butler
可靠性、弹性和可持续性是任何城市排水系统的关键目标。然而，最近只有少数研究侧重于在一个高度不确定的世界中测量、实施和比较这些概念。在本研究中，这些关键概念被定义和量化为一些灰色、绿色和混合策略，旨在改善现有综合城市污水系统的容量问题。这些干预措施是通过基于后悔的方法进行调查的，该方法通过整合四个不同的未来情景的多个目标（即下水道洪水、河流水质、综合下水道溢流、河流洪水、温室气体排放、成本和可接受性），评估每个策略在三个质量方面的稳健性（即在深度不确定性条件下表现良好的能力）。结果表明，在可持续性方面稳健的策略通常在未来情景的弹性和可靠性方面也稳健。然而，就其弹性而言，特别是在可靠性方面，战略被发现是稳健的，并不能保证可持续性的稳健性。传统的灰色基础设施战略由于其不平衡的经济、环境和社会绩效，在可持续性方面缺乏稳健性。然而，通过实施结合绿色改造和灰色修复解决方案的混合解决方案，克服了这些限制。
Reliability, resilience and sustainability are key goals of any urban drainage system. However, only a few studies have recently focused on measuring, operationalizing and comparing such concepts in a world of deep uncertainty. In this study, these key concepts are defined and quantified for a number of gray, green and hybrid strategies, aimed at improving the capacity issues of an existing integrated urban wastewater system. These interventions are investigated by means of a regret-based approach, which evaluates the robustness (that is the ability to perform well under deep uncertainty conditions) of each strategy in terms of the three qualities through integration of multiple objectives (i.e., sewer flooding, river water quality, combined sewer overflows, river flooding, greenhouse gas emissions, cost and acceptability) across four different future scenarios. The results indicate that strategies found to be robust in terms of sustainability were typically also robust for resilience and reliability across future scenarios. However, strategies found to be robust in terms of their resilience and, in particular, for reliability did not guarantee robustness for sustainability. Conventional gray infrastructure strategies were found to lack robustness in terms of sustainability due to their unbalanced economic, environmental and social performance. Such limitations were overcome, however, by implementing hybrid solutions that combine green retrofits and gray rehabilitation solutions.