
TheNew York City Subway is aheavy-railpublic transit system serving four of the five boroughs of New York City. The present New York City Subway system inherited the systems of theInterborough Rapid Transit Company (IRT),Brooklyn–Manhattan Transit Corporation (BMT), and theIndependent Subway System (IND). New York City has owned the IND since its inception; the BMT and IRT were taken over by the city in 1940. The former IRT system is now known as theA Division, while theB Division is the combined former BMT and IND systems.
In theNew York City Subway nomenclature, a "line" refers to the physical trackage that is used by numbered or lettered "services", which change periodically. Today, the division or company names are not used publicly, while the line names may occasionally be used.
In the nomenclature of the subway, the terms "line" and "service" are not interchangeable with each other. While in popular usage the word "line" is often used synonymously with "service" (even sometimes on the website of theMTA[1]), this list will use the formal usage of the term "line."
Aline is the physical structure and tracks that trains run over. Each section of the system is assigned a unique line name that begins with a division (IRT,BMT orIND), which is its pre-unification division when applicable. For example, the line underEighth Avenue is theIND Eighth Avenue Line. Some lines have changed names (and even divisions), but this happens relatively infrequently.
By contrast,aservice refers to the route that a train takes across the various lines. A service can operate along several lines and even along different divisions. For example, theR service operates along theIND Queens Boulevard Line as well as theBMT Broadway Line and theBMT Fourth Avenue Line.
Each service is assigned acolor. Since 1979, each service's color corresponds to the line it primarily uses inMidtown Manhattan[original research?]—defined as thetrunk line. There are three exceptions: theIND Crosstown Line, which does not carry services to Manhattan, is colored light green; theBMT Nassau Street Line, which runs only throughLower Manhattan, is colored brown; and allshuttles are colored dark gray.[2] The list of trunk lines and colors is shown in the table below.
| Primary Trunk line | Color[3][4] | Pantone[5] | Hexadecimal | Service bullets |
|---|---|---|---|---|
| IND Eighth Avenue Line | Blue | PMS 286 | #0039a6 | |
| IND Sixth Avenue Line | Orange | PMS 165 | #ff6319 | |
| IND Crosstown Line | Lime | PMS 376 | #6cbe45 | |
| BMT Canarsie Line | Light slate gray | 50% black | #a7a9ac | |
| BMT Nassau Street Line | Brown | PMS 154 | #996633 | |
| BMT Broadway Line | Yellow | PMS 116 | #fccc0a | |
| IRT Broadway–Seventh Avenue Line | Red | PMS 185 | #ee352e | |
| IRT Lexington Avenue Line | Green | PMS 355 | #00933c | |
| IRT Flushing Line | Purple | PMS Purple | #b933ad | |
| IND Second Avenue Line | Turquoise | PMS 638 | #00add0 | |
| Shuttles | Dark slate gray | 70% black | #808183 |
There are currently 36rail lines. TheArcher Avenue Lines and the63rd Street Lines are each classified as two separate lines due to their structure: both lines have distinct sections that arechained as BMT and the IND lines.
In the list below, lines with colors next to them indicate trunk lines, which determine the colors that are used for services' route bullets and diamonds, as well as shuttle service lines. The opening date refers to the opening of the first section of track for the line. In the "division" column, the current division is followed by the original division in parentheses.
| Division | Line | Borough(s) | Service(s) | Opened | Structure |
|---|---|---|---|---|---|
| B (IND) | 02Second Avenue Line | Manhattan | N Q R | January 1, 2017[6] | underground |
| B (BMT) | Fourth Avenue Line | Brooklyn | D N R W | June 22, 1915[7] | underground |
| B (IND) | 06Sixth Avenue Line | Manhattan Brooklyn | B D F M | January 1936[8] | underground |
| B (IND) | 08Eighth Avenue Line | Manhattan Brooklyn | A B C D E | September 10, 1932[9] | underground |
| A (IRT) | 42nd Street Shuttle | Manhattan | S | October 27, 1904[10] | underground[a] |
| B (BMT) | 63rd Street Line | Manhattan | N Q R | October 29, 1989[9] | underground |
| B (IND) | 63rd Street Line | Manhattan Queens | F | October 29, 1989[9] | underground |
| B (BMT) | Archer Avenue Line | Queens | J Z | December 11, 1988[7] | underground |
| B (IND) | Archer Avenue Line | Queens | E | December 11, 1988[9] | underground |
| B (BMT) | Astoria Line | Queens | N W | April 21, 1917[11] | elevated |
| B (BMT) | Brighton Line | Brooklyn | B Q | July 2, 1878[12] | underground, open cut, at-grade, embankment, elevated |
| B (BMT) | Broadway Line | Manhattan | N Q R W | September 4, 1917[7] | underground |
| A (IRT) | Broadway–Seventh Avenue Line | Bronx Manhattan Brooklyn | 1 2 3 | October 27, 1904[10] | elevated, embankment, underground[a] |
| B (BMT) | Canarsie Line | Brooklyn Manhattan | L | October 21, 1865[13] | underground, elevated, at-grade |
| B (IND) | Concourse Line | Bronx Manhattan | B D | July 1, 1933[9] | underground |
| B (IND) | Crosstown Line | Brooklyn Queens | G | August 19, 1933[9] | underground |
| B (IND) | Culver Line | Brooklyn | F G | March 16, 1919[7] | underground, elevated[b] |
| A (IRT) | Dyre Avenue Line | Bronx | 5 | May 15, 1941 | elevated[c], embankment, open-cut, underground |
| A (IRT) | Eastern Parkway Line | Brooklyn | 2 3 4 5 | January 9, 1908[10] | underground |
| A (IRT) | Flushing Line | Queens Manhattan | 7 | June 22, 1915[10] | underground, elevated |
| B (BMT) | Franklin Avenue Line | Brooklyn | S | July 2, 1878[12] | elevated, embankment, open cut |
| B (IND) | Fulton Street Line | Brooklyn Queens | A C | April 9, 1936[9] | underground, elevated[d] |
| B (BMT) | Jamaica Line | Brooklyn Queens | J M Z | February 2, 1885[7] | elevated |
| A (IRT) | Jerome Avenue Line | Bronx | 4 5 | June 12, 1917[10] | elevated, underground |
| A (IRT) | Lenox Avenue Line | Manhattan | 2 3 | November 23, 1904[10] | at-grade, underground |
| A (IRT) | Lexington Avenue Line | Manhattan | 4 5 6 | October 27, 1904[10] | underground[a] |
| B (BMT) | Myrtle Avenue Line | Brooklyn Queens | M | December 19, 1889[7] | elevated, embankment, at-grade |
| B (BMT) | Nassau Street Line | Manhattan | J M Z | September 16, 1908[7] | underground |
| A (IRT) | New Lots Line | Brooklyn | 2 3 4 5 | November 23, 1920[10] | elevated |
| A (IRT) | Nostrand Avenue Line | Brooklyn | 2 5 | August 23, 1920[10] | underground |
| A (IRT) | Pelham Line | Bronx | 6 | August 1, 1918[10] | underground, elevated |
| B (IND) | Queens Boulevard Line | Queens Manhattan | E F M R | August 19, 1933[9] | underground |
| B (IND) | Rockaway Line | Queens | A S | June 28, 1956 | at-grade, embankment, elevated[e] |
| B (BMT) | Sea Beach Line | Brooklyn | N W | June 22, 1915[7] | open cut, elevated |
| B (BMT) | West End Line | Brooklyn | D R W | June 24, 1916[7] | open-cut, elevated |
| A (IRT) | White Plains Road Line | Bronx | 2 5 | July 10, 1905[10] | elevated, underground |
The following list shows the connections between the different divisions of the New York City Subway.[14][dubious –discuss]
These connections can be used by trains in revenue service:
This connection is not for revenue service due to the differing widths of the trains:
These connections are located within thesubway's rail yards and are not intended for revenue service.
In some places, there are track connections within the same division that are unused in regular service.[15]
Many of the New York City Subway's lines have express tracks, unused in regular service and generally only used for re-routes.[16]

Despite “subway” implying underground travel, the following segments are located above ground orat grade level[17] and comprise about 40% of the trackage.[18]

At minimum, in normal revenue service, all lines have two tracks, with one exception: theBMT Franklin Avenue Line has a single track betweenFranklin Avenue andPark Place.
The New York City Subway has fewertriple track sections than it hasquadruple track sections[original research?]. These sections are listed below. The third track, when in use, is generally for peak-direction express service or reroutes, with exceptions noted below.
Additionally, there are several pocket tracks in the subway where the line temporarily widens from two to three tracks, such as east ofEighth Avenue on theBMT Canarsie Line, and south ofCourt Square on theIND Crosstown Line.
Quadruple-tracked portions of track are fairly common in the subway system. This makes it unique among most metro systems in the world, as most others only have two tracks per line. Generally, these portions are a pair of express and a pair of local tracks unless otherwise noted.
The Bronx has no four-tracked lines. Pocket tracks are not included.
The following New York City Subway lines are either entirely defunct or have major portions no longer in service. Defunctspur lines with one station, such as theSouth Ferry loops, are not included in this list, nor aresurface transit lines.
| Division | Line | Borough(s) | Opened | Closed | Structure | Status |
|---|---|---|---|---|---|---|
| A (IRT) | Second Avenue Line | Manhattan | March 1, 1880 | June 13, 1942 | elevated | Entirely demolished |
| A (IRT) 03 | Third Avenue Line | Manhattan | August 26, 1878 | May 12, 1955 | elevated | Entirely demolished |
| Bronx | April 28, 1973 | Entirely demolished; had been replaced for a time by the Bx55 and then Bx15 Limited buses. | ||||
| B (BMT) | Third Avenue Line | Brooklyn | October 1, 1893 | May 31, 1940 | elevated | Entirely demolished |
| B (BMT) | Fifth Avenue Line | Brooklyn | 1888–1890 | May 31, 1940 | elevated | Entirely demolished |
| A (IRT) | Sixth Avenue Line | Manhattan | 1878 | December 4, 1938 | elevated | Entirely demolished |
| A (IRT) 09 | Ninth Avenue Line | Manhattan | July 1, 1868 | June 11, 1940 | elevated | Entirely demolished |
| Bronx | August 31, 1958 | Entirely demolished, except for the two underground stations atSedgwick Avenue andAnderson–Jerome Avenues in the Bronx | ||||
| B (BMT) | Canarsie Line | Brooklyn | 1865 | November 21, 1942 | at-grade | Line fromCanarsie–Rockaway Parkway to Canarsie Pier replaced with astreetcar line, which itself was replaced by theB42 bus. |
| B (BMT) | Culver Line | Brooklyn | 1875 | elevated | Line fromDitmas Avenue toConey Island–Stillwell Avenue taken over by the IND in 1954[b] | |
| May 11, 1975 | Remainder of line toNinth Avenue abandoned, then demolished in 1985. | |||||
| B (BMT) | Fulton Street Line | Brooklyn | 1888–1894 | a) May 31, 1940 b) April 26, 1956 | elevated | a) Line demolished west ofRockaway Avenue. b) Remainder of line in Brooklyn demolished. |
| Queens | September 25, 1915 | Line taken over by the IND in 1956, with the western two-block section rebuilt to connect withGrant Avenue. | ||||
| A (IRT) | IRT trunk line | Manhattan | 1904 | underground | Separated into theBroadway–Seventh Avenue,Lexington Avenue and42nd Street Shuttle lines[a] | |
| B (BMT) | Lexington Avenue Line | Brooklyn | May 13, 1885 | 1889–1950 | elevated | Line west ofGates Avenue demolished |
| B (BMT) | Jamaica Line | Brooklyn | 1885–1888 | July 3, 1916 | elevated | Line west ofMarcy Avenue demolished |
| Queens | 1918 | a) September 10, 1977 b) April 15, 1985 | a) Line east ofQueens Boulevard demolished. b) Line east of121st Street demolished. Both segments were replaced with Q49 bus service, which itself was replaced in 1988 by theBMT Archer Avenue Line. | |||
| B (BMT) | Myrtle Avenue Line | Brooklyn | 1888–1889 | 1944–1969 | elevated | Line west ofCentral Avenue throughBroadway to Lewis Avenue abandoned. Remainder of line west of Lewis Avenue demolished. |
| B (IND) | World's Fair Line | Queens | 1939 | 1940 | at-grade | Entirely demolished. |