Enhancing residual flood risk assessment through response capacity quantification
Case study of the Sefidroud river, Iran
Bibliographic Data
| ID | 22025375 |
|---|---|
| Authors | Khabat Amani (University of Tehran), Seiyed Mossa Hosseini (0000-0001-7161-8711) |
| Year | 2026 |
| Volume | 134 |
| Pages | 106019 |
| Publication date | 2026-02-01 |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | International Journal of Disaster Risk Reduction (JOURNAL) |
| Journal identifiers | ISSN: 2212-4209 |
| Publisher | Elsevier BV (PUBLISHER) |
| DOI | 10.1016/j.ijdrr.2026.106019 |
| OpenAlex | W7124733563 |
| Language | EN |
| Citations received | 1 |
| References cited | 45 |
This study develops a response-adjusted flood risk assessment framework that incorporates physical accessibility to emergency services as a first approximation of community mitigation capacity. The framework is applied to three reaches of the Sefidroud River in northwestern Iran, a region frequently affected by severe flooding. Flood hazard was estimated using the HEC-RAS hydraulic model by integrating water depth and flow velocity across return periods from 2 to 1000 years, while vulnerability was assessed by overlaying land-use exposure with flood damage functions. A response factor—based on proximity to ten critical infrastructures including transport routes, emergency facilities, and healthcare services—was used to represent the accessible component of response capacity in a data-scarce setting. The resulting hydraulic simulations were validated qualitatively against available geomorphological evidence, as quantitative flood-extent data for these extreme return periods was not available. Incorporating this factor reduced the residual risk by approximately 7 % for the 100-year flood and 1 % for the 1000-year flood, indicating the limited moderating influence of local accessibility under extreme events. This work demonstrates how response-related indicators can be integrated into the conventional hazard–exposure–vulnerability paradigm, and outlines a pathway for expanding the framework to include broader social and institutional dimensions in future research. • Integrated response capacity into a residual flood risk framework. • Included human mitigation and emergency response as operational factors. • Modeled 2–1000-year floods in Sefidroud River using HEC-GeoRAS. • Response factors improve risk estimation by linking hazard and preparedness. • Supports Sendai Framework priorities for preparedness and recovery
Emergency management · Emergency response · Flood myth · Flood risk assessment · Hazard · Preparedness · Residual · Risk assessment · Disaster Management and Resilience · Flood Risk Assessment and Management · Infrastructure Resilience and Vulnerability Analysis
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| Citations per year | 1 |
|---|---|
| Citation span | 2026 - 2026 (1) |
| Highly cited | No |