Inspired by ideas from health risk assessment, this paper presents a new
perspective for flood risk assessment. The proposed perspective focuses on
three pillars for examining flood risk: (1) inherent susceptibility, (2)
mitigation strategies, and (3) external stressors. These pillars collectively
encompass the physical and environmental characteristics of urban areas, the
effectiveness of human-intervention measures, and the influence of
uncontrollable external factors, offering a fresh point of view for decoding
flood risks. For each pillar, we delineate its individual contributions to
flood risk and illustrate their interactive and overall impact. The
three-pillars model embodies a shift in focus from the quest to precisely model
and quantify flood risk to evaluating pathways to high flood risk. The shift in
perspective is intended to alleviate the quest for quantifying and predicting
flood risk at fine resolutions as a panacea for enhanced flood risk management.
The decomposition of flood risk pathways into the three intertwined pillars
(i.e., inherent factors, mitigation factors, and external factors) enables
evaluation of changes in factors within each pillar enhance and exacerbate
flood risk, creating a platform from which to inform plans, decisions, and
actions. Building on this foundation, we argue that a flood risk pathway
analysis approach, which examines the individual and collective impacts of
inherent factors, mitigation strategies, and external stressors, is essential
for a nuanced evaluation of flood risk. Accordingly, the proposed perspective
could complement the existing frameworks and approaches for flood risk
assessment.

该论文通过健康风险评估的思想，提出了一种新的洪水风险评估视角，重点关注三个方面：固有易感性、减灾策略和外部压力。这种新视角从破译洪水风险的新角度切入，旨在缓解对精确建模和量化洪水风险的追求，通过将洪水风险途径分解为固有因素、减灾策略和外部压力三个相互交织的支柱，提供了评估洪水风险的平台，可以指导规划、决策和行动。论文主张洪水风险途径分析方法对洪水风险进行细致评估，从固有因素、减灾策略和外部压力的个体和集体影响角度研究，作为现有洪水风险评估框架和方法的补充。