IRT New York City Subway

The IRT (Interborough Rapid Transit) is one of the original subway systems in New York City, now part of the MTA subway network. It consists of several lines that run underground and above ground, serving millions of commuters daily. The IRT lines are identifiable by numbered routes (like 1, 2, 3, 4, 5, 6, 7). These lines connect boroughs such as Manhattan, Brooklyn, Queens, and the Bronx, providing efficient transit across the city. The system is characterized by frequent service, standardized subway cars, and integrated connections to other transit services for comprehensive urban mobility.