Header

UZH-Logo

Maintenance Infos

A matter of speed: The impact of material choice in post-disaster reconstruction


Calentano, Giulia; Zea Escamilla, Edwin; Göswein, Verena; Habert, Guillaume (2019). A matter of speed: The impact of material choice in post-disaster reconstruction. International Journal of Disaster Risk Reduction, 34:34-44.

Abstract

The effects of urbanization and climate change are dangerously converging. The most affected populations are the urban poor, settled in informal settlements vulnerable to increasingly frequent disasters. This severely contributes to the existing housing gap of these regions, already struggling with housing demand. The speed of shelter delivery becomes key for an efficient response in order to prevent spontaneous informal resettlements on unsafe lands. The present study aims to understand the impact of material choice on post-disaster shelters delivery through a multiscale analysis of construction speed. The scales considered are: Constructive technology, Shelter Unit and Post-disaster settlement. At the the Constructive technology scale, nine different reconstruction solutions for the Nepal earthquake are compared, covering a range from local to industrialized. Successively, twelve shelter designs by the International Federation of the Red Cross have been studied under the same lens at the Shelter unit scale and for Post-disaster settlements. The study identifies a clear correlation between material procurement and speed at the constructive technology scale. At the shelter scale, this correlation becomes secondary and construction time is seriously impacted by the complexity of roof design. Moving to the settlement scale, the choice of local over industrialized materials seems to drive the speed again. The study indicates how a multiscale approach is necessary to analyze the impacts of material selection, providing efficient guidelines for post-disaster reconstruction. Beyond that, it highlights that effective reconstruction can be developed with diverse materials, but its emergency responsiveness can seriously be compromised by a non-appropriate design.

Abstract

The effects of urbanization and climate change are dangerously converging. The most affected populations are the urban poor, settled in informal settlements vulnerable to increasingly frequent disasters. This severely contributes to the existing housing gap of these regions, already struggling with housing demand. The speed of shelter delivery becomes key for an efficient response in order to prevent spontaneous informal resettlements on unsafe lands. The present study aims to understand the impact of material choice on post-disaster shelters delivery through a multiscale analysis of construction speed. The scales considered are: Constructive technology, Shelter Unit and Post-disaster settlement. At the the Constructive technology scale, nine different reconstruction solutions for the Nepal earthquake are compared, covering a range from local to industrialized. Successively, twelve shelter designs by the International Federation of the Red Cross have been studied under the same lens at the Shelter unit scale and for Post-disaster settlements. The study identifies a clear correlation between material procurement and speed at the constructive technology scale. At the shelter scale, this correlation becomes secondary and construction time is seriously impacted by the complexity of roof design. Moving to the settlement scale, the choice of local over industrialized materials seems to drive the speed again. The study indicates how a multiscale approach is necessary to analyze the impacts of material selection, providing efficient guidelines for post-disaster reconstruction. Beyond that, it highlights that effective reconstruction can be developed with diverse materials, but its emergency responsiveness can seriously be compromised by a non-appropriate design.

Statistics

Citations

Dimensions.ai Metrics
8 citations in Web of Science®
10 citations in Scopus®
Google Scholar™

Altmetrics

Downloads

73 downloads since deposited on 27 Nov 2018
50 downloads since 12 months
Detailed statistics

Additional indexing

Item Type:Journal Article, not_refereed, original work
Communities & Collections:03 Faculty of Economics > Center for Corporate Responsibility and Sustainability
Dewey Decimal Classification:330 Economics
Scopus Subject Areas:Physical Sciences > Geotechnical Engineering and Engineering Geology
Social Sciences & Humanities > Safety Research
Physical Sciences > Geology
Uncontrolled Keywords:Shelters; Emergency; Post-disaster reconstruction; Material procurement; Local materials; Multiscale
Language:English
Date:1 March 2019
Deposited On:27 Nov 2018 17:12
Last Modified:29 Jul 2020 08:07
Publisher:Elsevier
ISSN:2212-4209
Additional Information:in collaboration with the ETH Zürich
OA Status:Green
Publisher DOI:https://doi.org/10.1016/j.ijdrr.2018.10.026

Download

Green Open Access

Download PDF  'A matter of speed: The impact of material choice in post-disaster reconstruction'.
Preview
Content: Accepted Version
Filetype: PDF
Size: 549kB
View at publisher
Licence: Creative Commons: Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)