This image shows volume of taxi rides in Manhattan on an average Tuesday at 4PM, during March 2009. Data Visualization by Zoe Fraade-Blanar, additional analysis by Kevin Webb, Aaron Glazer, John Keefe, and Lev Steshenko. Data is based on a record of GPS-tagged taxi rides in March 2009 provided by the New York City Taxi and Limousine Commission. Visualization uses the Circos software package

