Journal cover Journal topic
Natural Hazards and Earth System Sciences An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

Journal metrics

  • IF value: 2.883 IF 2.883
  • IF 5-year value: 3.321 IF 5-year
    3.321
  • CiteScore value: 3.07 CiteScore
    3.07
  • SNIP value: 1.336 SNIP 1.336
  • IPP value: 2.80 IPP 2.80
  • SJR value: 1.024 SJR 1.024
  • Scimago H <br class='hide-on-tablet hide-on-mobile'>index value: 81 Scimago H
    index 81
  • h5-index value: 43 h5-index 43
Discussion papers
https://doi.org/10.5194/nhess-2019-161
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-2019-161
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: research article 11 Jun 2019

Submitted as: research article | 11 Jun 2019

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Natural Hazards and Earth System Sciences (NHESS).

Economic assessment of measures aimed at reducing flood damage to buildings using computer modelling and expert judgement

Claire Richert, Hélène Boisgontier, and Frédéric Grelot Claire Richert et al.
  • UMR G-EAU, Irstea, Université de Montpellier

Abstract. To limit the losses due to floods, public authorities can try to foster the adoption of private measures aimed at reducing the vulnerability of the dwellings. However, the efficacy and cost-efficiency to reduce material losses of such measures are not well-known. In particular, a better understanding of the influence of buildings characteristics and flood parameters on these variables would help identify the measures that are relevant to implement in specific contexts. We examined this topic for three groups of measures taken on existing dwellings: one consists in elevating the dwelling, one in dry-proofing it, and one in using construction materials that are resistant to water or cheap to replace. We combined expert judgement and computer modelling to assess their cost, efficacy, and cost-efficiency for a wide range of flood depth and duration, building characteristics, and level of exposure. We found that the value of the building components has a positive effect on the efficacy of dry-proofing and elevating a dwelling. Both the efficacy and cost of these two groups of measures increase with the size of the dwelling. Moreover, according to our results, dry-proofing and elevating a dwelling are unlikely to be cost-efficient for dwellings that are not exposed to floods with a return period lower than 100 and 30 years, respectively. Our findings also highlight that it is often less expensive to use the adapted than the original materials when rebuilding a damaged dwelling. Moreover, adapting the materials of an intact dwelling is unlikely to be cost-efficient for dwellings that are not exposed to floods with a return period lower than 20 years.

Claire Richert et al.
Interactive discussion
Status: final response (author comments only)
Status: final response (author comments only)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
[Login for Authors/Editors] [Subscribe to comment alert] Printer-friendly Version - Printer-friendly version Supplement - Supplement
Claire Richert et al.
Claire Richert et al.
Viewed  
Total article views: 278 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
208 66 4 278 2 1
  • HTML: 208
  • PDF: 66
  • XML: 4
  • Total: 278
  • BibTeX: 2
  • EndNote: 1
Views and downloads (calculated since 11 Jun 2019)
Cumulative views and downloads (calculated since 11 Jun 2019)
Viewed (geographical distribution)  
Total article views: 209 (including HTML, PDF, and XML) Thereof 208 with geography defined and 1 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Cited  
Saved  
No saved metrics found.
Discussed  
No discussed metrics found.
Latest update: 22 Aug 2019
Publications Copernicus
Download
Short summary
To limit the losses due to floods, people can adopt measures to protect their dwellings. We assessed the cost and efficacy of such measures using computer modelling. We found that the benefits of most of the measures studied are unlikely to exceed their cost when they are taken in dwellings that are not exposed to frequent floods (probability of occurrence of less than 1/100 by year). Besides, it is often less expensive to use building materials adapted to floods than other common materials.
To limit the losses due to floods, people can adopt measures to protect their dwellings. We...
Citation