Pedro Miguel Cruz has published some videos of his master thesis in information visualization and interaction design at DEI/FBA. The visualizations displays the traffic evolution in Lisbon during 24h.
Pedro has created a plethora of visual representations of the same data, each with a different visual style to focus on a variety of aspects of the data. These aspects include traffic speed, density and areas of traffic jams. The video below is a combination of some of these aspects and can be seen as the conclusion of the series.