The A Division, also known as the IRT Division, is a division of the New York City Subway consisting of the lines whose services are designated by numbers (1, 2, 3, 4, 5, 6, 7) and the 42nd Street Shuttle. These lines and services were operated by the Interborough Rapid Transit Company (IRT) prior to the 1940 city takeover.
Because of the limitations of the infrastructure's loading gauge, A Division rolling stock is narrower, shorter, and lighter than that used on the B Division, measuring in width and in length, compared with up to in width and in length for B Division cars.Second Avenue Subway Draft Environmental Impact Statement,
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):
IRT 42nd Street Shuttle () IRT Broadway–Seventh Avenue Line () IRT Dyre Avenue Line () IRT Eastern Parkway Line () IRT Flushing Line () IRT Jerome Avenue Line () IRT Lenox Avenue Line () IRT Lexington Avenue Line () IRT New Lots Line () IRT Nostrand Avenue Line () IRT Pelham Line () IRT White Plains Road Line ()
Service history Numbers were assigned to subway services in 1948: NameNorth end/typeSeventh Avenue Local (all times)BroadwaySeventh Avenue Express (all times except late nights)White Plains RoadSeventh Avenue Express (all times)Lenox AvenueLexington Avenue Express (all times except late nights)JeromeLexington Avenue Express (all times except late nights)DyreLexington Avenue Local (all times)Pelham Bay ParkPelham Bay Park Express peak direction (rush hours)Flushing Express peak direction (rush hours)FlushingFlushing Local (all times) 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 B Division (New York City Subway) Interborough Rapid Transit Company New York City Subway
References