Targeting property flood resilience in flood risk management

Abstract In this article, we evaluate property flood resilience (PFR) to manage pluvial and combined tidal/ fluvial flood risks. We achieve this by evaluating flood risk and intervention targeting strategies across a case study in Bristol (UK) using data types generally available for preliminary opt...

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Main Authors: James L. Webber, Albert S. Chen, John Stevens, Rob Henderson, Slobodan Djordjević, Barry Evans
Format: Article
Language:English
Published: Wiley 2021-09-01
Series:Journal of Flood Risk Management
Subjects:
Online Access:https://doi.org/10.1111/jfr3.12723
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author James L. Webber
Albert S. Chen
John Stevens
Rob Henderson
Slobodan Djordjević
Barry Evans
author_facet James L. Webber
Albert S. Chen
John Stevens
Rob Henderson
Slobodan Djordjević
Barry Evans
author_sort James L. Webber
collection DOAJ
description Abstract In this article, we evaluate property flood resilience (PFR) to manage pluvial and combined tidal/ fluvial flood risks. We achieve this by evaluating flood risk and intervention targeting strategies across a case study in Bristol (UK) using data types generally available for preliminary option assessment. We investigate opportunities for mitigating flood damages within catchments using PFR and evaluate two targeting strategies: Installing PFR across strategic areas of a catchment and targeting interventions at specific high‐risk properties. We find that individually targeting PFR is more effective than focusing resources on specific high‐risk areas. Targeting pluvial flood measures at individual properties across our case study provides an average annual benefit per property of approximately £750 more than applying zonal targeting, supporting use of high‐resolution modelling in surface water management, and highlighting the applicability of PFR to manage damages at specific high‐risk properties which may not fall under the protection of community level defences. A similar approach provides the best outcomes for fluvial targeting; however, the hazard is more concentrated and so a zonal targeting approach may be more acceptable. Overall, we find resistance based PFR an effective intervention to mitigate damages, however complementary strategies are required when managing extreme flooding.
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spelling doaj.art-ac0999ce4e3f4c29a446206712bef6ae2022-12-21T20:14:41ZengWileyJournal of Flood Risk Management1753-318X2021-09-01143n/an/a10.1111/jfr3.12723Targeting property flood resilience in flood risk managementJames L. Webber0Albert S. Chen1John Stevens2Rob Henderson3Slobodan Djordjević4Barry Evans5Centre for Water Systems University of Exeter Exeter UKCentre for Water Systems University of Exeter Exeter UKBristol City Council Bristol UKWessex Water Bristol UKCentre for Water Systems University of Exeter Exeter UKCentre for Water Systems University of Exeter Exeter UKAbstract In this article, we evaluate property flood resilience (PFR) to manage pluvial and combined tidal/ fluvial flood risks. We achieve this by evaluating flood risk and intervention targeting strategies across a case study in Bristol (UK) using data types generally available for preliminary option assessment. We investigate opportunities for mitigating flood damages within catchments using PFR and evaluate two targeting strategies: Installing PFR across strategic areas of a catchment and targeting interventions at specific high‐risk properties. We find that individually targeting PFR is more effective than focusing resources on specific high‐risk areas. Targeting pluvial flood measures at individual properties across our case study provides an average annual benefit per property of approximately £750 more than applying zonal targeting, supporting use of high‐resolution modelling in surface water management, and highlighting the applicability of PFR to manage damages at specific high‐risk properties which may not fall under the protection of community level defences. A similar approach provides the best outcomes for fluvial targeting; however, the hazard is more concentrated and so a zonal targeting approach may be more acceptable. Overall, we find resistance based PFR an effective intervention to mitigate damages, however complementary strategies are required when managing extreme flooding.https://doi.org/10.1111/jfr3.12723flood mitigationfluvialpluvial floodingproperty flood resilienceurban flooding
spellingShingle James L. Webber
Albert S. Chen
John Stevens
Rob Henderson
Slobodan Djordjević
Barry Evans
Targeting property flood resilience in flood risk management
Journal of Flood Risk Management
flood mitigation
fluvial
pluvial flooding
property flood resilience
urban flooding
title Targeting property flood resilience in flood risk management
title_full Targeting property flood resilience in flood risk management
title_fullStr Targeting property flood resilience in flood risk management
title_full_unstemmed Targeting property flood resilience in flood risk management
title_short Targeting property flood resilience in flood risk management
title_sort targeting property flood resilience in flood risk management
topic flood mitigation
fluvial
pluvial flooding
property flood resilience
urban flooding
url https://doi.org/10.1111/jfr3.12723
work_keys_str_mv AT jameslwebber targetingpropertyfloodresilienceinfloodriskmanagement
AT albertschen targetingpropertyfloodresilienceinfloodriskmanagement
AT johnstevens targetingpropertyfloodresilienceinfloodriskmanagement
AT robhenderson targetingpropertyfloodresilienceinfloodriskmanagement
AT slobodandjordjevic targetingpropertyfloodresilienceinfloodriskmanagement
AT barryevans targetingpropertyfloodresilienceinfloodriskmanagement