A Division
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A Division (New York City Subway)
| A Division (New York City Subway) | |
|---|---|
| Technical | |
| Track gauge | 4 ft 8 1⁄2 in (1,435 mm) |
| Minimum radius | 147.25 ft (44.88 m)[1] |
The A Division, also known as the IRT Division,[2] is a division of the New York City Subway, consisting of the lines operated with services designated by numbers (1, 2, 3, 4, 5, 6, and 7) and the 42nd Street Shuttle. These lines and services were operated by the Interborough Rapid Transit Company before the 1940 city takeover. A Division cars are narrower, shorter, and lighter than those of the B Division, measuring 8.6 by 51 ft (2,621 by 15,545 mm).[3]
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Contents
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List of lines
The following lines are part of the A Division (services shown in parentheses; lines with colors next to them are trunk lines):
| Station service legend | |
|---|---|
 |
Stops all times |
 |
Stops all times except late nights |
 |
Stops late nights only |
 |
Stops late nights and weekends only |
 |
Stops weekdays only |
 |
Stops all times except rush hours in the peak direction |
 |
Stops rush hours only |
 |
Stops rush hours in the peak direction only |
| Time period details | |
- IRT Second Avenue Line (closed 1942)
- IRT Third Avenue Line (closed 1973)
- IRT Sixth Avenue Line (closed 1938)
- IRT Ninth Avenue Line (closed 1958)
- IRT 42nd Street Shuttle (S
train) - IRT Broadway – Seventh Avenue Line (1
2 3 trains – North of 42nd Street) (1 2 3 trains – South of 42nd Street) - IRT Dyre Avenue Line (5 train)
- IRT Eastern Parkway Line (2 3 4 5
trains) - IRT Flushing Line (7 <7>
trains) - IRT Jerome Avenue Line (4 train)
- IRT Lenox Avenue Line (2 3 trains)
- IRT Lexington Avenue Line (4 5 6 <6> trains)
- IRT New Lots Line (2
3 4 
5 trains) - IRT Nostrand Avenue Line (2 5 trains)
- IRT Pelham Line (6 <6> trains)
- IRT White Plains Road Line (2 5 trains)
Service history
Numbers were assigned to subway services in 1948:
| Name | North end/type | |
|---|---|---|
| 1 | Seventh Avenue Local | Broadway |
| 2 | Seventh Avenue Express (all times except late nights) | White Plains Road |
| 3 | Seventh Avenue Express (all times) | Lenox Avenue |
| 4 | Lexington Avenue Express (all times except late nights) | Jerome |
| 5 | Lexington Avenue Express (all times except late nights) | White Plains Road |
| 6 | Lexington Avenue Local (all times) | Pelham Bay Park |
| 7 | Flushing Express peak direction (rush hours) | |
| Flushing Local (all times) | ||
| 8 | Astoria Local (all times) | |
| 9 | Dyre Avenue Local (all times) | Shuttle |
The 42nd Street Shuttle and Bowling Green – South Ferry Shuttle also provided subway services, and elevated service remained on the Third Avenue Line and Polo Grounds Shuttle.
See also
- Interborough Rapid Transit Company
- Brooklyn–Manhattan Transit Corporation
- Independent Subway System
- B Division
References
- ^ http://www.stationreporter.net/curves.htm
- ^ MTA New York City Transit, Employment Opportunities: "During the first phase of the project, NYC Transit installed SONET nodes in the three subway divisions: IRT, BMT, and IND."
- ^ Second Avenue Subway Draft Environmental Impact Statement, GlossaryPDF (45.6 KiB)
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