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Flood damage and risk assessment for urban area in Malaysia

In recent years, flood risk map has been widely accepted as a tool for flood mitigation. The risk of flooding is normally illustrated in terms of its hazard (flood inundation maps), while vulnerability emphasizes the consequences of flooding. In developing countries, published studies on flood vulne...

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Main Authors: Romali, N. S., Yusop, Z.
Format: Article
Language:English
Published: IWA Publishing 2021
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.utm.my/id/eprint/94554/1/NoorSurayaRomali2021_FloodDamageandRiskAssessment.pdf
http://eprints.utm.my/id/eprint/94554/
http://dx.doi.org/10.2166/NH.2020.121
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spelling my.utm.945542022-03-31T14:55:40Z http://eprints.utm.my/id/eprint/94554/ Flood damage and risk assessment for urban area in Malaysia Romali, N. S. Yusop, Z. TA Engineering (General). Civil engineering (General) In recent years, flood risk map has been widely accepted as a tool for flood mitigation. The risk of flooding is normally illustrated in terms of its hazard (flood inundation maps), while vulnerability emphasizes the consequences of flooding. In developing countries, published studies on flood vulnerability assessment are limited, especially on flood damage. This paper attempts to establish a flood damage and risk assessment framework for Segamat town in Johor, Malaysia. A combination of flood hazard (flood characteristics), exposure (value of exposed elements), and vulnerability (flood damage function curve) were used for estimating the flood damage. The flood depth and areal extent were obtained from flood modeling and mapping using HEC-HMS/RAS and Arc GIS, respectively. Expected annual damage (EAD) for residential areas (50,112 units) and commercial areas (9,318 premises) were RM12.59 million and RM2.96 million, respectively. The flood hazard map shows that Bandar Seberang area (46,184 properties) was the most affected by the 2011 flood. The flood damage map illustrates similar patterns, with Bandar Seberang suffering the highest damage. The damage distribution maps are useful for reducing future flood damage by identifying properties with high flood risk. IWA Publishing 2021 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/94554/1/NoorSurayaRomali2021_FloodDamageandRiskAssessment.pdf Romali, N. S. and Yusop, Z. (2021) Flood damage and risk assessment for urban area in Malaysia. Hydrology Research, 52 (1). ISSN 1998-9563 http://dx.doi.org/10.2166/NH.2020.121 DOI: 10.2166/NH.2020.121
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Romali, N. S.
Yusop, Z.
Flood damage and risk assessment for urban area in Malaysia
description In recent years, flood risk map has been widely accepted as a tool for flood mitigation. The risk of flooding is normally illustrated in terms of its hazard (flood inundation maps), while vulnerability emphasizes the consequences of flooding. In developing countries, published studies on flood vulnerability assessment are limited, especially on flood damage. This paper attempts to establish a flood damage and risk assessment framework for Segamat town in Johor, Malaysia. A combination of flood hazard (flood characteristics), exposure (value of exposed elements), and vulnerability (flood damage function curve) were used for estimating the flood damage. The flood depth and areal extent were obtained from flood modeling and mapping using HEC-HMS/RAS and Arc GIS, respectively. Expected annual damage (EAD) for residential areas (50,112 units) and commercial areas (9,318 premises) were RM12.59 million and RM2.96 million, respectively. The flood hazard map shows that Bandar Seberang area (46,184 properties) was the most affected by the 2011 flood. The flood damage map illustrates similar patterns, with Bandar Seberang suffering the highest damage. The damage distribution maps are useful for reducing future flood damage by identifying properties with high flood risk.
format Article
author Romali, N. S.
Yusop, Z.
author_facet Romali, N. S.
Yusop, Z.
author_sort Romali, N. S.
title Flood damage and risk assessment for urban area in Malaysia
title_short Flood damage and risk assessment for urban area in Malaysia
title_full Flood damage and risk assessment for urban area in Malaysia
title_fullStr Flood damage and risk assessment for urban area in Malaysia
title_full_unstemmed Flood damage and risk assessment for urban area in Malaysia
title_sort flood damage and risk assessment for urban area in malaysia
publisher IWA Publishing
publishDate 2021
url http://eprints.utm.my/id/eprint/94554/1/NoorSurayaRomali2021_FloodDamageandRiskAssessment.pdf
http://eprints.utm.my/id/eprint/94554/
http://dx.doi.org/10.2166/NH.2020.121
_version_ 1729703188605435904
score 13.211869

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