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Decline in Subway Ridership: Pre- and Post-COVID

A3SR Student Visualization Competition Winner, Joe Marlo

Every couple of months, PRIISM will run a student visualization competition to display and highlight the talents of the A3SR graduate students. 

The winning visualization, submitted by A3SR student Joe Marlo shows the disparity in the decline of subway ridership across NYC neighborhoods. Stations in outer boroughs experiencing less decline compared to their Manhattan counterparts — perhaps due to essential worker status or employment flexibility. The decline captures the change in mean daily riders entering a given station, and the encompassing Voronoi diagram partitions geographies based on their closest station.