In this article, we evaluate property flood resilience (PFR) to manage pluvial and combined tidal/ fluvial flood risks. We achieve this by evaluating flood risk and intervention targeting strategies across a case study in Bristol (UK) using data types generally available for preliminary option assessment. We investigate opportunities for mitigating flood damages within catchments using PFR and evaluate two targeting strategies: Installing PFR across strategic areas of a catchment and targeting interventions at specific high-risk properties. We find that individually targeting PFR is more effective than focusing resources on specific high-risk areas. Targeting pluvial flood measures at individual properties across our case study provides an average annual benefit per property of approximately £750 more than applying zonal targeting, supporting use of high-resolution modelling in surface water management, and highlighting the applicability of PFR to manage damages at specific high-risk properties which may not fall under the protection of community level defences. A similar approach provides the best outcomes for fluvial targeting; however, the hazard is more concentrated and so a zonal targeting approach may be more acceptable. Overall, we find resistance based PFR an effective intervention to mitigate damages, however complementary strategies are required when managing extreme flooding.

中文翻译：

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在洪水风险管理中针对财产洪水弹性

在本文中，我们评估财产洪水弹性 (PFR) 以管理洪水和潮汐/河流洪水风险。我们通过在布里斯托尔（英国）的案例研究中评估洪水风险和干预目标策略来实现这一目标，使用通常可用于初步选项评估的数据类型。我们调查了使用 PFR 减轻流域内洪水破坏的机会，并评估了两种目标策略：在流域的战略区域安装 PFR 和针对特定高风险财产的干预措施。我们发现单独针对 PFR 比将资源集中在特定的高风险领域更有效。在我们的案例研究中，针对个别物业的暴雨洪水措施为每个物业提供的平均年收益比应用区域性目标高约 750 英镑，支持在地表水管理中使用高分辨率模型，并强调 PFR 在管理可能不属于社区级防御保护的特定高风险财产的损害方面的适用性。类似的方法为河流定位提供了最佳结果；然而，危害更加集中，因此区域定位方法可能更容易接受。总的来说，我们发现基于抗性的 PFR 是减轻损害的有效干预措施，但是在管理极端洪水时需要补充策略。然而，危害更加集中，因此区域定位方法可能更容易接受。总的来说，我们发现基于抗性的 PFR 是减轻损害的有效干预措施，但是在管理极端洪水时需要补充策略。然而，危害更加集中，因此区域定位方法可能更容易接受。总的来说，我们发现基于抗性的 PFR 是减轻损害的有效干预措施，但是在管理极端洪水时需要补充策略。