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Article: The cost of rapid and haphazard urbanization: lessons learned from the Freetown landslide disaster

TitleThe cost of rapid and haphazard urbanization: lessons learned from the Freetown landslide disaster
Authors
KeywordsLand-use change
Rapid urbanization
Haphazard urban planning
Geo-hazards
Disaster
Issue Date2019
Citation
Landslides, 2019, v. 16 n. 6, p. 1167-1176 How to Cite?
Abstract© 2019, The Author(s). Urbanization has been linked to destructive geo-hazards that can cause loss of life, destruction of property, and environmental damage. On August 14, 2017, a devastating geo-hazard chain—a debris slide, debris flow, and sediment-laden flood—in Freetown, Sierra Leone resulted in at least 500 deaths and over 600 missing persons and the destruction of hundreds of houses. This study uses 10 years of high-resolution satellite images to conduct a remote sensing analysis of the disaster. Although rainfall was the trigger, rapid and haphazard urbanization acted to increase both hazard and vulnerability. Specifically, poor urban planning with inadequate consideration of risk led to housing construction in dangerous areas; clearance of hillside vegetation increased erosion potential; very low cost buildings using frail construction material and methods lacked resilience; and insufficient risk management led to weak emergency response.
Persistent Identifierhttp://hdl.handle.net/10722/273743
ISSN
2023 Impact Factor: 5.8
2023 SCImago Journal Rankings: 2.020
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorCui, Yifei-
dc.contributor.authorCheng, Deqiang-
dc.contributor.authorChoi, Clarence E.-
dc.contributor.authorJin, Wen-
dc.contributor.authorLei, Yu-
dc.contributor.authorKargel, Jeffrey S.-
dc.date.accessioned2019-08-12T09:56:32Z-
dc.date.available2019-08-12T09:56:32Z-
dc.date.issued2019-
dc.identifier.citationLandslides, 2019, v. 16 n. 6, p. 1167-1176-
dc.identifier.issn1612-510X-
dc.identifier.urihttp://hdl.handle.net/10722/273743-
dc.description.abstract© 2019, The Author(s). Urbanization has been linked to destructive geo-hazards that can cause loss of life, destruction of property, and environmental damage. On August 14, 2017, a devastating geo-hazard chain—a debris slide, debris flow, and sediment-laden flood—in Freetown, Sierra Leone resulted in at least 500 deaths and over 600 missing persons and the destruction of hundreds of houses. This study uses 10 years of high-resolution satellite images to conduct a remote sensing analysis of the disaster. Although rainfall was the trigger, rapid and haphazard urbanization acted to increase both hazard and vulnerability. Specifically, poor urban planning with inadequate consideration of risk led to housing construction in dangerous areas; clearance of hillside vegetation increased erosion potential; very low cost buildings using frail construction material and methods lacked resilience; and insufficient risk management led to weak emergency response.-
dc.languageeng-
dc.relation.ispartofLandslides-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectLand-use change-
dc.subjectRapid urbanization-
dc.subjectHaphazard urban planning-
dc.subjectGeo-hazards-
dc.subjectDisaster-
dc.titleThe cost of rapid and haphazard urbanization: lessons learned from the Freetown landslide disaster-
dc.typeArticle-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1007/s10346-019-01167-x-
dc.identifier.scopuseid_2-s2.0-85063861896-
dc.identifier.hkuros311042-
dc.identifier.volume16-
dc.identifier.issue6-
dc.identifier.spage1167-
dc.identifier.epage1176-
dc.identifier.eissn1612-5118-
dc.identifier.isiWOS:000467649800008-
dc.identifier.issnl1612-510X-

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