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Efficiency and effectiveness in case of disaster: a visual damage assessment test
Department of Geography, Ghent University, Ghent, Belgium.
University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Land management, GIS.
University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Computer science.
2018 (English)In: Proceedings of the International Cartographic Association (Proceedings of the ICA), 2018, Vol. 1, article id 86Conference paper, Published paper (Refereed)
Abstract [en]

 A user study is conducted to evaluate the efficiency and effectiveness of two types of visualizations to identify damages sites in case of disaster. The test consists out 36 trials (18 for each visualisation) and in each trial an area of 1×1km, located in Ghent, is displayed on a screen. This image shows the combined height information from before and after the disaster. The first visualisation, page flipping, is based on greyscale images with height information from the pre- and post-disaster situation between which users can switch manually. The second visualisation, difference image, is a result of subtracting the heights (before versus after) and assigning a blue-white-red colour ramp. In order to simulate the urgency with which the data is captured, systematic and random imperfections are introduced in the post-disaster data. All participants’ mouse and key interactions are logged, which is further complemented by the registration of their eye movements. This give insights the visualizations’ efficiency, effectiveness and the overall search strategies of the participants.

Place, publisher, year, edition, pages
2018. Vol. 1, article id 86
Keywords [en]
User study, mouse & key logging, eye tracking, emergency response, damage assessment
National Category
Computer Systems
Identifiers
URN: urn:nbn:se:hig:diva-29174DOI: 10.5194/ica-proc-1-86-2018OAI: oai:DiVA.org:hig-29174DiVA, id: diva2:1282711
Conference
The 28th International Cartographic Conference took place, 2–7 July 2017, Washington D.C., USA
Available from: 2019-01-25 Created: 2019-01-25 Last updated: 2019-02-13Bibliographically approved

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Åhlén, JuliaSeipel, Stefan

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard-cite-them-right
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • sv-SE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • de-DE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf