University of Worcester Worcester Research and Publications

The Day Roads Became Rivers: A GIS-Based Assessment of Flash Floods in Worcester

Visser, Fleur ORCID: (2008) The Day Roads Became Rivers: A GIS-Based Assessment of Flash Floods in Worcester. In: Flood Risk Management: Research and Practice. CRC Press, London, pp. 1617-1621. ISBN 978-0-415-48507-4 eBook: 978-0-203-88302-0

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In the last 4 years Worcester, UK has been hit by several intense convective rainstorms, which caused flash floods outside of existing surface drainage networks. This paper addresses two questions related to such events: Firstly to what extent can the occurrence of flash flood flow accumulation can be determined using only commonly available data and tools, assuming the rainfall events caused mainly surface runoff due to their tropical intensity and the relatively impermeable urban catchment surface? Secondly, are the flood in-cidents in Worcester aggravated by roads serving as preferential flow paths under these conditions? The as-sessment results indicated that roads do not have an influence on the flow path of flash flood rainfall in Worcester. Flow accumulation calculated with a 10m DEM, corresponds well with reported flood incidents. This basic assessment method can be used to inform the implementation of non structural flood mitigation and public awareness.

Item Type: Book Section
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Uncontrolled Discrete Keywords: floods, flooding, flash floods, flood management policy, Worcester, SERG
Subjects: G Geography. Anthropology. Recreation > GB Physical geography
Divisions: College of Health, Life and Environmental Sciences > School of Science and the Environment
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Depositing User: Fleur Visser
Date Deposited: 16 Jan 2009 11:15
Last Modified: 12 Jun 2021 04:00

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