The New York City Transit Authority (also known as NYCTA, the TA, or simply Transit, and branded as MTA New York City Transit) is a public-benefit corporation in the U.S. state of New York that operates public transportation in New York City. Part of the Metropolitan Transportation Authority, the busiest and largest transit system in North America, the NYCTA has a daily ridership of 8 million trips (over 2.5 billion annually). The NYCTA operates the following systems: