The rail system in New York City is primarily known as the New York City Subway, which is operated by the Metropolitan Transportation Authority (MTA). It is one of the world's oldest and most extensive public transit systems, featuring 472 stations and operating 24 hours a day, seven days a week. In addition to the subway, the broader New York train network includes the Staten Island Railway (SIR), the Long Island Rail Road (LIRR), and Metro-North Railroad, which connect the city to its surrounding suburbs and regions. For travel between New Jersey and Manhattan, passengers use the PATH (Port Authority Trans-Hudson) system. In 2026, the primary way to pay for all these systems is through OMNY, the contactless "tap-and-go" payment system that allows you to use your smartphone, smartwatch, or a contactless credit card at the turnstiles, effectively phasing out the iconic but aging physical MetroCard that was a staple for decades.