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Efficiency and effectiveness in case of disaster: a visual damage assessment test
Department of Geography, Ghent University, Ghent, Belgium.
Högskolan i Gävle, Akademin för teknik och miljö, Avdelningen för Industriell utveckling, IT och Samhällsbyggnad, Samhällsbyggnad, GIS.
Högskolan i Gävle, Akademin för teknik och miljö, Avdelningen för Industriell utveckling, IT och Samhällsbyggnad, Datavetenskap.
2018 (engelsk)Inngår i: Proceedings of the International Cartographic Association (Proceedings of the ICA), 2018, Vol. 1, artikkel-id 86Konferansepaper, Publicerat paper (Fagfellevurdert)
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.

sted, utgiver, år, opplag, sider
2018. Vol. 1, artikkel-id 86
Emneord [en]
User study, mouse & key logging, eye tracking, emergency response, damage assessment
HSV kategori
Identifikatorer
URN: urn:nbn:se:hig:diva-29174DOI: 10.5194/ica-proc-1-86-2018OAI: oai:DiVA.org:hig-29174DiVA, id: diva2:1282711
Konferanse
The 28th International Cartographic Conference took place, 2–7 July 2017, Washington D.C., USA
Tilgjengelig fra: 2019-01-25 Laget: 2019-01-25 Sist oppdatert: 2019-02-13bibliografisk kontrollert

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