Mauricio Jonas Ferreira, Humberto Ribeiro da Rocha
{"title":"Hazard classification, social and economic losses in flooded urban areas","authors":"Mauricio Jonas Ferreira, Humberto Ribeiro da Rocha","doi":"10.1016/j.ijdrr.2025.105395","DOIUrl":null,"url":null,"abstract":"<div><div>The spatial and temporal evolution of hazard maps is crucial for issuing flood alerts and activating contingency plans. Hazard classification maps were generated in the HEC-RAS ((Hydrologic Engineering Center – River Analysis System) model using Depth-Velocity (DV) data. Economic damages and loss of life were estimated in the HEC-FIA (Hydrologic Engineering Center – Flood Impact Analysis) model, calibrated with social and economic data from various government agencies. The study revealed hazardous areas with varying DV values. Regions with H2 (DV ≤ 0.6) were unsafe for small vehicles, while areas with H5 (DV ≤ 4.0) posed risks for vehicles, people, and buildings. Areas with H6 (DV > 4.0) were classified as highly hazardous. Direct economic losses were estimated at $376,040.00 for 15 structures, including $213,430.00 for structural damage, $127,990.00 for interior damage, and $34,620.00 for vehicle damage. Between 97 % and 99 % of individuals received warning messages, and all mobilised and non-mobilised individuals survived.</div></div>","PeriodicalId":13915,"journal":{"name":"International journal of disaster risk reduction","volume":"120 ","pages":"Article 105395"},"PeriodicalIF":4.2000,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International journal of disaster risk reduction","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2212420925002195","RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"GEOSCIENCES, MULTIDISCIPLINARY","Score":null,"Total":0}
Hazard classification, social and economic losses in flooded urban areas
The spatial and temporal evolution of hazard maps is crucial for issuing flood alerts and activating contingency plans. Hazard classification maps were generated in the HEC-RAS ((Hydrologic Engineering Center – River Analysis System) model using Depth-Velocity (DV) data. Economic damages and loss of life were estimated in the HEC-FIA (Hydrologic Engineering Center – Flood Impact Analysis) model, calibrated with social and economic data from various government agencies. The study revealed hazardous areas with varying DV values. Regions with H2 (DV ≤ 0.6) were unsafe for small vehicles, while areas with H5 (DV ≤ 4.0) posed risks for vehicles, people, and buildings. Areas with H6 (DV > 4.0) were classified as highly hazardous. Direct economic losses were estimated at $376,040.00 for 15 structures, including $213,430.00 for structural damage, $127,990.00 for interior damage, and $34,620.00 for vehicle damage. Between 97 % and 99 % of individuals received warning messages, and all mobilised and non-mobilised individuals survived.
期刊介绍:
The International Journal of Disaster Risk Reduction (IJDRR) is the journal for researchers, policymakers and practitioners across diverse disciplines: earth sciences and their implications; environmental sciences; engineering; urban studies; geography; and the social sciences. IJDRR publishes fundamental and applied research, critical reviews, policy papers and case studies with a particular focus on multi-disciplinary research that aims to reduce the impact of natural, technological, social and intentional disasters. IJDRR stimulates exchange of ideas and knowledge transfer on disaster research, mitigation, adaptation, prevention and risk reduction at all geographical scales: local, national and international.
Key topics:-
-multifaceted disaster and cascading disasters
-the development of disaster risk reduction strategies and techniques
-discussion and development of effective warning and educational systems for risk management at all levels
-disasters associated with climate change
-vulnerability analysis and vulnerability trends
-emerging risks
-resilience against disasters.
The journal particularly encourages papers that approach risk from a multi-disciplinary perspective.