Addressing urban water management challenges requires a holistic view. Sustainable approaches such as blue-green infrastructure (BGI) provide several benefits, but assessing their effectiveness demands a systemic approach. Challenges are magnified in informal areas, leading to the combination of integrated urban water management (IUWM) with BGI as a proposed solution by this research. We employed the Urban Water Use (UWU) model to assess the effectiveness index (EI) of BGI measures in view of IUWM after stakeholder consultation. The procedure in this novel assessment includes expert meetings for scenario building and resident interviews to capture the community's vision. To assess the impact of IUWM on the effectiveness of BGI measures, we proposed a simulation with BGI only and then three simulations with improvements to the water and sewage systems. The results of the EI analysis reveal a substantial improvement in the effectiveness of BGI measures through IUWM combination. Moreover, we offer insights into developing strategies for UWU model application in informal settlements, transferrable to diverse urban areas. The findings hold relevance for policymakers and urban planners, aiding informed decisions in urban water management.

中文翻译：

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城市综合水资源管理中的蓝绿基础设施：有效性指数的新颖评估

应对城市水管理挑战需要整体视角。蓝绿基础设施 (BGI) 等可持续方法提供了多种好处，但评估其有效性需要采用系统方法。非正规领域的挑战被放大，导致综合城市水管理（IUWM）与华大基因的结合作为本研究提出的解决方案。在与利益相关者协商后，我们采用城市用水（UWU）模型根据IUWM评估BGI措施的有效性指数（EI）。这项新颖评估的程序包括场景构建的专家会议和居民访谈，以捕捉社区的愿景。为了评估 IUWM 对 BGI 措施有效性的影响，我们提出了仅使用 BGI 的模拟，然后进行了对供水和污水系统进行改进的三个模拟。 EI分析结果显示，通过IUWM组合，华大基因措施的有效性得到了显着提高。此外，我们还提供了有关 UWU 模型在非正式住区应用的制定策略的见解，这些策略可转移到不同的城市地区。研究结果对政策制定者和城市规划者具有重要意义，有助于在城市水管理方面做出明智的决策。