In 2011 I had the opportunity to visualize Waze’s traffic data. Waze is a turn-by-turn navigation application for smartphones that reports the individual user’s movement information back to Waze so that the information can be aggregated and in improve directions for all Waze users. The above visualization above shows Waze app usage from 3am May 23rd, 2011 to 3am May 24th in Tel Aviv. Each Waze user is indicated in pink with their routes in green, the columns represent various Waze alerts (these are manually reported by each user), and the purple puffs around some of the roads indicate traffic as collected from passive data sources. The visualizations were initially made with Processing but were eventually moved to C++ with Cinder.