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Exploring Road Incident Data with Heat Maps

By Iain Dillingham, Bryn Mills and Jason Dykes


ABSTRACT: 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

Topics: heat map, visualization, evaluation, open source software
Year: 2013
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