City Research Online

Exploring Road Incident Data with Heat Maps

Dillingham, I., Mills, B. & Dykes, J. (2011). Exploring Road Incident Data with Heat Maps. Poster presented at the Geographic Information Science Research UK 19th Annual Conference (GISRUK 2011), 27 - 29 Apr 2011, University of Portsmouth, Portsmouth, UK.


This research seeks to determine whether heat mapping is an effective technique for the visual exploration of road incident data. Four software prototypes, which adopted map, treemap and spatial treemap layouts, were developed using open source software. Whilst the visualization process described by Fry (2007) informed the development effort, the evaluation methodology was based on the Nested Process Model (Munzner, 2009). The results of two evaluation methods-a design study and the presentation and discussion of results with domain experts-confirm heat mapping's validity and provide requirements for further software development.

Publication Type: Conference or Workshop Item (Poster)
Publisher Keywords: heat map, visualization, evaluation, open source software
Subjects: G Geography. Anthropology. Recreation > GA Mathematical geography. Cartography
Z Bibliography. Library Science. Information Resources > Z665 Library Science. Information Science
Departments: School of Science & Technology > Computer Science > giCentre
School of Communication & Creativity > Media, Culture & Creative Industries > Library & Information Science
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