The Interborough Rapid Transit Company (IRT) was the first operator of the original underground New York City Subway line that opened in 1904, as well as other earlier railways and rapid transit lines in New York City. The company was bought by New York City in June 1940. The former IRT lines (the numbered lines in the current subway system) are now the A Division or IRT Division of the Subway.
The following services are or were part of the IRT or MTA IRT Division:
- Line 1: Seventh Avenue Local
- Line 2: Seventh Avenue Express
- Line 3: Seventh Avenue Express
- Line 4: Lexington Avenue Express
- Line 5: Lexington Avenue Express
- Line 6: Lexington Avenue Local
- Line 7: Flushing Express and Local
- Line S: 42nd Street Shuttle
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| Services | |
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| Stations |
- By borough
- The Bronx
- Brooklyn
- Manhattan
- Queens
- By type
- Closed
- Terminals
- Transfer
- Accessible
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| Divisions | |
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| Other lists | |
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| Expansion |
- Capital projects
- 7 Subway Extension
- Second Avenue Subway
- Other proposals
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| History |
- Early history
- IRT
- BMT
- BRT (defunct)
- Dual Contracts
- Crashes
- Ninth Avenue derailment
- Malbone Street Wreck
- 1928 Times Square derailment
- 1991 Union Square derailment
- Miss Subways
- Strikes
- 2000 lawsuit against NYCTA
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| Infrastructure |
- 58 Joralemon Street
- Fulton Center
- Corbin Building
- Dey Street Passageway
- Substations
- 7
- 18
- 219
- 401
- IRT
- Dyckman-Hillside
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| Arts and culture |
- Tiles
- MTA Arts & Design
- Music Under New York
- Showtime (busking)
- In popular culture
- Subway Series
- Mass Transit Super Bowl
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| Miscellaneous |
- Map
- Nomenclature
- Automation and signals
- Chaining
- Fares
- MetroCard
- Pizza Principle
- Subway Challenge
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Other rapid transit in NYC |
- AirTrain JFK
- Port Authority Trans-Hudson
- Staten Island Railway
- Historical
- Beach Pneumatic Transit
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