> The audit shows that tracks in seven stations -- just 3% of the 276 underground stops -- met New York City Transit's cleaning schedule, once every three weeks

> The audit shows that tracks in seven stations -- just 3% of the 276 underground stops -- met New York City Transit's cleaning schedule, once every three weeks. More than half the stations got between four and eight visits from an 11-person cleaning crew a year, according to the audit of cleaning records between July 2013 and June 2014. This blew my mind. The London underground isn't exactly spotless, but it's cleaned (at least once) every day.