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TitleRapid Risk Evaluation (ER2) using MS Excel spreadsheet: a case study of Fredericton (New Brunswick, Canada)
AuthorMcGrath, HORCID logo; Stefanakis, E; Nastev, MORCID logo
SourceXXIII ISPRS Congress, Commission VIII; ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences vol. III-8, 2016 p. 27-34, Open Access logo Open Access
Alt SeriesNatural Resources Canada, Contribution Series 20180285
PublisherCopernicus GmbH
MeetingXXIII ISPRS Congress, Commission VIII; Prague; CZ; July 12-19, 2016
Mediapaper; on-line; digital
File formatpdf; xml
ProvinceNew Brunswick
NTS21G/15; 21J/02
Lat/Long WENS -66.7972 -66.5500 46.0250 45.9000
Subjectshydrogeology; Nature and Environment; Science and Technology; Health and Safety; floods; mapping techniques; modelling; software; Hazus; Methodology; Risk assessment; Buildings; Economic impact
Illustrationstables; histograms; plots; screen captures
ProgramPublic Safety Geoscience Quantitative risk assessment project
Released2016 06 07
AbstractConventional knowledge of the flood hazard alone (extent and frequency) is not sufficient for informed decision-making. The public safety community needs tools and guidance to adequately undertake flood hazard risk assessment in order to estimate respective damages and social and economic losses. While many complex computer models have been developed for flood risk assessment, they require highly trained personnel to prepare the necessary input (hazard, inventory of the built environment, and vulnerabilities) and analyze model outputs. As such, tools which utilize open-source software or are built within popular desktop software programs are appealing alternatives. The recently developed Rapid Risk Evaluation (ER2) application runs scenario based loss assessment analyses in a Microsoft Excel spreadsheet. User input is limited to a handful of intuitive drop-down menus utilized to describe the building type, age, occupancy and the expected water level. In anticipation of local depth damage curves and other needed vulnerability parameters, those from the U.S. FEMA's Hazus-Flood software have been imported and temporarily accessed in conjunction with user input to display exposure and estimated economic losses related to the structure and the content of the building. Building types and occupancies representative of those most exposed to flooding in Fredericton (New Brunswick) were introduced and test flood scenarios were run. The algorithm was successfully validated against results from the Hazus-Flood model for the same building types and flood depths.
Summary(Plain Language Summary, not published)
A simple MS Excel spreadsheet for flood risk assessment has been developed as a replacement for the complex and tedious US FEMA Hazus software. this paper présents the results from the Fredericton (NB) validation study.

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