New york subway map pdf. The mayor of new york city rode the subway last week and it was a big deal. Opened in 1904 the new york city subway is one of the worlds oldest public transit systems one of the worlds most used metro. The new york city subway is a rapid transit system owned by the city of new york and leased to the new york city transit authority a subsidiary agency of the state run metropolitan transportation authority mta. The ny subway system is one of the busiest mass transit systems in the world servicing over four million riders everyday.