This work constitutes several visual experiments that map the GPS coordinates and velocity of 1534 vehicles circulating in Lisbon, Portugal, during October 2009. That information is condensed in one single virtual day, grouping the data by second and displaying it as an animation.The white dots are the circulating vehicles at that moment. The trails of the vehicles group themselves into main arteries where the thickness represents traffic intensity. Each trail constitutes a temporary route where the average speed is mapped to its color. Pure green represents average speeds of 60 km/h. Therefore cooler and greenish hues traduce rapid transit arteries, while the sluggish ones are reddish and hotter. There is a visual emphasis on the slower areas, with hot colors traducing sluggish traffic.
