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TitleA methodology to leverage seismic risk assessments to inform seismic policy development, the Case of the City of Vancouver
 
AuthorHilt, M; Molina Hutt, CORCID logo; Hobbs, T EORCID logo; Wen, F
SourceProceedings of the United States National Conference on Earthquake Engineering 2022 p. 1-5
LinksOnline - En ligne
Image
Year2022
Alt SeriesNatural Resources Canada, Contribution Series 20210384
PublisherEarthquake Engineering Research Institute
Documentserial
Lang.English
Mediapaper; digital
File formatpdf
ProvinceBritish Columbia
NTS92G/06
AreaVancouver
Lat/Long WENS-123.5000 -123.0000 49.5000 49.2500
SubjectsHealth and Safety; tectonics; Economics and Industry; earthquakes; earthquake risk; seismic risk; seismicity; modelling; Policy; Buildings; Risk assessment; Disaster risk reduction; Natural hazards
Illustrationsdiagrams; histograms
ProgramPublic Safety Geoscience National Earthquake Risk Assessment Framework
Released2022 06 28
AbstractSeismic risk reduction planning for existing buildings must begin with a quantitative account of risk, and it must contain an objective basis grounding the various policy options considered within it. This work proposes one methodology for generating that objective policy basis, leveraging seismic risk modelling outputs to detail the benefits of various policy options to reduce risk in Vancouver's 90,000 existing, privately held buildings. This methodology considers risk in terms of casualties, building damage, disrupted occupants, and direct financial losses, creating a process to model the reduction across each risk metric for cohorts of buildings. These cohorts are ranked by their impact upon the desired metrics, allowing for identification of efficient policy strategies from a test set. In effect, it allows municipal staff and decision makers to understand the potential for risk reduction and make informed policy decisions, including risk reduction targets, to advance citywide seismic resilience.
Summary(Plain Language Summary, not published)
Seismic risk reduction planning for existing buildings must begin with a numerically-based assessment of risk, and it must contain some basis for evaluating the various policy options considered within it. This work proposes one method for developing that basis, using seismic risk model outputs to detail the benefits of various policy options to reduce risk in Vancouver's 90,000 existing, privately-held buildings. This method considers risk in terms of injuries/deaths, building damage, disrupted people, and financial losses. It creates a clear process to estimate the amount that risk is reduced, as a result of proposed policies, for groups of buildings. These groups are ranked by how much they impact the desired metrics, allowing for identification of useful policy strategies from within a test set. In effect, it allows local planning staff and decision makers to understand the potential for risk reduction and make informed decisions to achieve advancements in citywide resilience.
GEOSCAN ID329163

 
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