Metro-North Railroad in the context of "New Haven Line"

The Northeast Corridor (NEC) is an electrified railroad line in the Northeast megalopolis of the United States. Owned primarily by Amtrak, it runs from Boston in the north to Washington, D.C., in the south, with major stops in Providence, New Haven, Stamford, New York City, Newark, Trenton, Philadelphia, Wilmington, and Baltimore. The NEC is roughly paralleled by Interstate 95 for most of its length. Carrying more than 2,200 trains a day, it is the busiest passenger rail line in the United States by ridership and service frequency.

The corridor is used by many Amtrak trains, including the high-speed Acela (formerly Acela Express), intercity trains, and several long-distance trains. Most of the corridor also has frequent commuter rail service, operated by the MBTA (Keolis), CT Rail, Metro-North Railroad, Long Island Rail Road, New Jersey Transit, SEPTA, and MARC. While large through freights have not run on the NEC since the early 1980s, some sections still carry smaller local freights operated by CSX, Norfolk Southern, CSAO, Providence and Worcester, New York and Atlantic, and Canadian Pacific. CSX and NS partly own their routes.

Grand Central Terminal (GCT; also referred to as Grand Central Station or simply as Grand Central) is a commuter rail terminal at 42nd Street and Park Avenue in Midtown Manhattan, New York City. Grand Central is the southern terminus of the Metro-North Railroad's Harlem, Hudson and New Haven Lines, serving the northern parts of the New York metropolitan area. It also serves the Long Island Rail Road through Grand Central Madison, a 16-acre (65,000 m) addition to the station located underneath the Metro-North tracks, built from 2007 to 2023. The terminal also connects to the New York City Subway at Grand Central–42nd Street station. The terminal is the third-busiest train station in North America, after New York Penn Station and Toronto Union Station.

The distinctive architecture and interior design of Grand Central Terminal's station house have earned it several landmark designations, including as a National Historic Landmark. Its Beaux-Arts design incorporates numerous works of art. Grand Central Terminal is one of the world's ten most-visited tourist attractions, with 21.6 million visitors in 2018, excluding train and subway passengers. The terminal's Main Concourse is often used as a meeting place, and is especially featured in films and television. Grand Central Terminal contains a variety of stores and food vendors, including upscale restaurants and bars, a food hall, and a grocery marketplace. The building is also noted for its library, event hall, tennis club, control center and offices for the railroad, and sub-basement power station.

NJ Transit Rail Operations (reporting mark NJTR) is the rail division of NJ Transit. It operates commuter rail service in New Jersey, with most service centered on transportation to and from New York City, Hoboken, and Newark. NJ Transit also operates rail service in Orange and Rockland counties in New York under contract to Metro-North Railroad. The commuter rail lines saw 59,447,200 riders in 2024, making it the third-busiest commuter railroad in North America and the longest commuter rail system in North America by route length.

The Long Island Rail Road (reporting mark LI), or LIRR, is a railroad in the southeastern part of the U.S. state of New York, stretching from Manhattan to the eastern tip of Suffolk County on Long Island. The railroad currently operates a public commuter rail service, with its freight operations contracted to the New York and Atlantic Railway. With an average weekday ridership of 354,800 passengers in 2016, it is the busiest commuter railroad in North America. It is also one of the world's few commuter systems that run 24/7 year-round. It is publicly owned by the Metropolitan Transportation Authority, which refers to it as MTA Long Island Rail Road. In 2024, the system had a ridership of 83,777,900, or about 325,500 per weekday as of the third quarter of 2025.

The LIRR logo combines the circular MTA logo with the text Long Island Rail Road, and appears on the sides of trains. The LIRR is one of two commuter rail systems owned by the MTA, the other being the Metro-North Railroad in the northern suburbs of the New York area. Established in 1834 (the first section between the Brooklyn waterfront and Jamaica opened on April 18, 1836) and having operated continuously since then, it is the oldest railroad in the United States still operating under its original name and charter.

Chappaqua (/ˈtʃæpəkwɑː/ CHAP-ə-kwah) is a hamlet and census-designated place in the town of New Castle, in northern Westchester County, New York, United States. It is approximately 30 miles (50 km) north of New York City. The hamlet is served by the Chappaqua station of the Metro-North Railroad's Harlem Line.

Chappaqua was founded by a group of Quakers in the 1730s and was the home of Horace Greeley, New-York Tribune editor and U.S. congressman. Chappaqua's high school is named after him.

Appalachian Trail station is a commuter rail stop on the Metro-North Railroad's Harlem Line, serving campers and hikers destined for the Appalachian Trail, in Pawling, New York. It is the only rail station directly located on the Appalachian Trail. Trains stop on weekends and holidays only.

The Connecticut Department of Transportation (officially referred to as CTDOT, occasionally ConnDOT, and CDOT in rare instances) is responsible for the development and operation of highways, railroads, mass transit systems, ports and waterways in Connecticut.

CTDOT manages and maintains the state highway system. It oversees the Shore Line East and Hartford Line commuter rail systems under the CTrail brand, and owns the Connecticut section of the New Haven Line used by Metro-North Railroad and Amtrak Northeast Corridor services. CTDOT also oversees the CTtransit bus system, as well as the CTfastrak bus rapid transit service.

The Harlem Line is an 82-mile (132 km) commuter rail line owned and operated by the Metro-North Railroad in the U.S. state of New York. It runs north from New York City to Wassaic, in eastern Dutchess County. The lower 53 miles (85 km) from Grand Central Terminal to Southeast, in Putnam County, is electrified with a third rail and has at least two tracks. The section north of Southeast is a non-electrified single-track line served by diesel locomotives. Before the renaming of the line in 1983, it eventually became the Harlem Division of the New York Central Railroad. The diesel trains usually run as a shuttle on the northern end of the line, except for rush-hour express trains in the peak direction (two to Grand Central in the morning, two from Grand Central in the evening).

With 38 stations, the Harlem Line has the most of any Metro-North main line. Its northern terminal, Wassaic, is the northernmost station in the system. It is the only Metro-North line used exclusively by that carrier (no use by Amtrak, though CSX services freight customers as far north as Mount Vernon) and the only one that uses the entirety of existing track. It is colored blue on Metro-North timetables and system maps, and stations on the line have blue trim. The blue color-coding appears to have started with timetables issued by predecessor New York Central for the then-Harlem Division as far back as 1965.