The New York City subway is gross. Not even by the standards of other cities' much more impeccably-kept metro systems, but just in and of itself. Every station is supposed to have its tracks cleaned every three weeks, which pans out to 17 times a year, but that obviously doesn't happen. Actually, the lion's share of the city's stations were only tended to less than 10 times between July 2013 and July 2014, according to an audit by the city comptroller. WNYC has created an interactive graphic using information from the audit showing how some stations measure up, and it's pretty disheartening. The 138th Street 4/5/6 station was completely ignored, meaning trash was left to accumulate on its tracks for an entire year. Tourist-trodden stations like West 4th Street and the 59th Street 4/5/6 stop topped the list for most-cleaned tracks between July 2013 and July 2014. WNYC's graphic doesn't cover all of the city's 468 stations (unlike this poster), but it's worth checking out to see how different stops rank. Find it here.

· Tackling Trash on the Tracks [WNYC]

· Awesome 'Nerdy Poster' Combines All 468 Subway Stop Signs [Curbed]

· NYC Subway Poster Designers Talk Vignelli, Standards and the Fetish for Physical Design [Curbed]