| A Division | |
|---|---|
|  | |
|         (42nd Street) | |
| Technical | |
| Track gauge | 4 ft 8+1⁄2 in (1,435 mm) standard gauge | 
| 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, 7) and the 42nd Street Shuttle.[3] 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 feet (2.62 by 15.54 m).[4][5]
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 weekdays during the day | 
|  | Stops rush hours only | 
|  | Stops weekdays in the peak direction only | 
| Time period details | |
|  | Station is compliant with the Americans with Disabilities Act | 
|  ↑ | Station is compliant with the Americans with Disabilities Act in the indicated direction only | 
|  ↓ | |
|  | Elevator access to mezzanine only | 
-   IRT 42nd Street Shuttle (S  train) train)
-   IRT Broadway–Seventh Avenue Line (1  2 2 3 3 trains) trains)
- IRT Dyre Avenue Line (5  train) train)
- IRT Eastern Parkway Line (2  3 3 4 4 5 5 trains) trains)
-   IRT Flushing Line (7  <7> <7>  trains)  trains)
- IRT Jerome Avenue Line (4  5 5 trains) trains)
- IRT Lenox Avenue Line (2  3 3 trains) trains)
-   IRT Lexington Avenue Line (4  5 5 6 6 <6> <6> trains) trains)
- IRT New Lots Line (2  3 3 4 4 5 5 trains) trains)
- IRT Nostrand Avenue Line (2  5 5 trains) trains)
- IRT Pelham Line (6  <6> <6>  trains)  trains)
- IRT White Plains Road Line (2  5 5 trains) trains)
Service history
Numbers were assigned to subway services in 1948:[6]
| Name | North end/type | |
|---|---|---|
| 1 | Seventh Avenue Local (all times) | 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 | 
| Flushing Local (all times) | Flushing | 
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
References
- ↑ "BMT and IRT Curve Radii". Archived from the original on March 18, 2012.
- ↑ "New Technology Trains - A Division". nycsubway.org. Retrieved July 11, 2018.
- ↑ Sims, Calvin (June 30, 1990). "Alphabet Soup: Telling an IRT From a BMT". The New York Times. Retrieved July 11, 2018.
- ↑ "NYC Fun Facts: Not All NYC Subway Trains Are the Same Size". Untapped Cities. August 2, 2017. Retrieved July 11, 2018.
- ↑ Second Avenue Subway Draft Environmental Impact Statement, "Glossary" (PDF). (45.6 KiB)
- ↑ Merelli, Annalisa (December 4, 2015). "The history behind New York City's missing subway lines". Quartz. Retrieved July 11, 2018.























