An inside look: Go behind-the-scenes of the MTA's transit system at Open House New York tours
Open House New York offers behind-the-scenes MTA tours in NYC Oct. 17–19, featuring Livonia Maintenance Shop, Coney Island Yard, and Grand Central Madison.
Ask the MTA | Subway cleanings, conductors and why MetroCards look they way they do | amNewYork
All cars in service are continually cleaned at end terminals, with staff sweeping and mopping the floors and wiping down seats. Most are also sent for external washing once a week.