Uploaded on 2016-07-25 by Boris

This photo was taken at rush hour at the Circuito Bicentenario, one of Mexico City's two intracity circular highways. Visible information: - It's morning and the air is heavily polluted (note that the buildings in the background are hidden in a kind of fog) - The right lane is heavily congested while the left lane is basically free - There are three lanes in each direction and one feeder lane on each direction - There are two billboards, the digital one in the foreground is not rented - There is little flora on the highway itself, the sun is basically shining directly on the cars - There is a bus stop -> public transportation options available - There are many taxis, the vehicles are mainly cars used by the middle and lower classes. Invisible information: - Traffic flow in the mornings goes mainly from north to east/south. The Reforma avenue (background) and the Polanco district are the principal destinations of commuters on this highway. The north is mainly used for factories and residential areas of low to middle class levels. The congestion shown here results mainly from an overloaded exit lane and the fact that the highway sometimes converts itself to a normal street with street lights etc. - Because of little shade and constant congestion, the air quality is very bad. Personally, it's quite difficult to breathe on such a clear morning. Making the invisible visible: If you track the car's destinations using cameras and tracking techniques, you could detect junctions and exit lanes which congest traffic. Since the main issue of bad air on this track of the highway are cars accelerating and stopping very frequently, a better flow of traffic and more shade (by trees or other flora) could improve air quality for drivers and pedestrians alike.