Transition zones: how to improve our flood defences resilience

Transition zones: how to improve our flood defences resilience.
Roca, M.and Tarrant, O. and Simm, J.D. and Flikweert, J. and Tourment, R. and Neutz, C. and van Steeg, P.
In: Flood & Coast 2019, 18-20 June 2019, Telford, UK. (2019)

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Abstract:Transition zones in flood defence systems are areas of weakness that can ultimately lead to flood defence failure and breach causing severe impacts on communities, as illustrated by the findings from reviews of UK flood events since 2007. The fact that transitions often form weak points within a defence infrastructure is broadly recognised and international agencies and organisations have directed efforts to understand how transitions affect overall defence performance and how these impacts should be addressed to improve systems resilience. However, in the UK, current risk based approaches for assessing and managing flood risks impacts at different levels, local, regional and national, do not include risk contributions made by transitions. The Environment Agency has therefore, teamed up with a group of international experts to conduct research to assess the risks associated to transitions, to quantify those risks and to manage them with improved design and retrofitting solutions. This research initiative will make a significant advance towards improving our knowledge about the impacts of transitions in flood risk and will contribute to strengthen our systems resilience. The paper will describe the issues associated with transitions in flood defence infrastructure and present early conclusions from the research.
Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Transitions; Flood defence; Resilience; Flood risk
Subjects:Floods > General
ID Code:1759
Deposited On:17 Jul 2019 06:57
Last Modified:09 Oct 2019 09:06

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