ACM SIGGRAPH 2010 Art Gallery
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The traffic of Lisbon is portrayed exploring metaphors of living organisms with circulatory problems. Rather than being an aesthetic essay or a set of decorative artifacts, our approach focuses on synthesizing and conveying meaning through data portrayal [Donath et al, 2010]. Our portrayal is embodied by two visualization models with related visual metaphors: the clots in the traffic of Lisbon and the blood vessels in the traffic of Lisbon. The former evolves from a direct mapping of the data, producing clotted areas where the traffic velocity is low. The latter uses an adaptive physics system to build and manipulate the road network -- the thickness, the color and the length of the vessels are excited by the number of vehicles and average velocity in each road. With this system we distance ourselves from the strictness of contemporary visualizations that depict data accurately through direct mappings.