M7 (railcar)

Last updated
M7
Plandome Station, Plandome, NY November 23, 2023 M.jpg
LIRR M7 #7824 arriving at Plandome
M7A Leaving 125th Street 3.23.23.png
Metro-North M7A #4268 leaving Harlem-125th Street
In service
  • M7: 2002–present
  • M7A: 2004-present
Manufacturer Bombardier Transportation
ReplacedAll remaining M1s
All remaining ACMUs
Constructed1999–2006
Number built
Number scrapped
  • 10
Formation Married pairs
Fleet numbers
Capacity
  • 110 seated (A car)
  • 101 seated (B car)
Operators MTA (LIRR and MNCR)
Specifications
Car body constructionStainless steel
Car length85 ft (25,908 mm)
Width10 ft 6 in (3,200 mm) [1]
Height13 ft 3 in (4,039 mm)
Floor height4 ft 3 in (1,295 mm)
Wheel diameter36 in (914 mm)
Wheelbase 8 ft 6 in (2,591 mm)
Maximum speed
  • 100 mph (161 km/h) (design)
  • 80 mph (129 km/h) (service)
Weight
  • 128,300 lb (58,200 kg) (A car)
  • 125,300 lb (56,800 kg) (B car)
Traction system Mitsubishi Electric IGBTVVVF [2] [3]
Traction motors
  • 8 × Mitsubishi 265 hp (198 kW) asynchronous 3-phase AC [4]
  • M7: MB-5088-A [5]
  • M7A: MB-5088-A2 [5]
Power output2,120 hp (1,580 kW) per unit
Acceleration 2 mph/s (3.2 km/(h⋅s))
Deceleration
  • 3 mph/s (4.8 km/(h⋅s)) (service)
  • 3.2 mph/s (5.1 km/(h⋅s)) (emergency)
Electric system(s) Third rail,  750 V DC
Current collector(s) Contact shoe
UIC classification Bo′Bo′+Bo′Bo′ [6]
AAR wheel arrangement B-B+B-B
Braking system(s) Regenerative / Pneumatic
Safety system(s) ATC and Pulse code cab signaling
Coupling system Budd Pin and Cup coupler
Track gauge 4 ft 8+12 in (1,435 mm) standard gauge

The M7 is an electric multiple unit railroad car built by Bombardier, with delivery beginning in 2002, used by the MTA on the Long Island Rail Road (M7) and Metro-North Railroad (M7A). The M7 replaced the M1 railcars as well as the ACMUs on the Metro North, which had previously provided electric service on these lines. The M7 fleets are powered from an electric third rail. A total of 1,172 M7 cars were built for the two railroads. [7]

Contents

Description

Cars are arranged as married pairs, where each car contains a complete set of controls for an engineer, conductor, or brakeman. However, the 'B' Cars (denoted by odd-numbered car designations) contain a handicapped accessible restroom, which is larger than the restroom provided on the M1 and M3 railcars and designed to accommodate a wheelchair, as well as an attendant and/or service animal (such as a guide dog, hearing dog or service dog) accompanying the passenger. The enlarged bathroom reduces the number of seats in the car. [7]

The M7 was built for the LIRR and Metro-North. Howerver, They have differences. Their most notable differences are the color schemes on the cab end of each car. Metro-North M7As have blue fronts with white stripes, while LIRR's M7s have black and yellow fronts. In addition, the Metro-North uses under-running third rails (with the train's third-rail shoes collecting electricity from the bottom of the third rail) inherited from the former New York Central Railroad, and the LIRR uses over-running third rails. [7] Metro-North's M7As are not equipped with illuminated number boards, while LIRR's M7s are. The Metro-North M7As were also used In the 2016 film The Girl on the Train . [8]

On April 19, 2021, the LIRR proposed equipping two pairs of M7 railcars with batteries for travel in diesel territory, pending feasibility studies. [9]

History

In late 1999, a contract was awarded to Bombardier for 836 LIRR M7s. Delivery began in early 2002, and test trains for the LIRR M7 began on the Ronkonkoma Branch. After several successful tests, LIRR M7 revenue service began on the Long Beach Branch on October 30, 2002, and Metro-North's first M7A started scheduled service in April 2004. All M7s were delivered by early 2007.

Accidents and incidents

Early troubleshooting

The M7 cars swayed from side to side more than intended when introduced to service, and required modifications to reduce the sway. In late 2006 the MTA began a replacement of all M7 armrests after paying out over $100,000 to customers who filed complaints. The factory-installed armrests were notorious for slipping into trouser pockets and then tearing them when sitting. The new design is of a different profile and is coated in a more fabric-friendly rubber. Some passengers complained about having fewer seats per B car, a consequence of the larger ADA-compliant restrooms, and about the width of the seats. Metro-North's management received feedback about the M7, which influenced the development of the M8 railcars for the New Haven Line.

In the fall of 2006, the M7s started to experience serious braking problems due to foliage on the right-of-way, a condition known as "Slip-Slide." This caused nearly 2/3 of the Metro-North fleet to be taken out of service, due to flat spots on wheels. While the LIRR fleet performed significantly better, stripped M1s from both railroads were reactivated, and diminished schedules were instituted until the M7 fleet was able to resume full operation.

As of 2007, the fleet has the highest mean distance between failures out of the entire LIRR fleet. This partly had to do with the fleet's newness, and so the fleet often needed to be tested for reliability. [13]

See also

Related Research Articles

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The Long Island Rail Road, often abbreviated as the LIRR, is a railroad in the southeastern part of the U.S. state of New York, stretching from Manhattan to the eastern tip of Suffolk County on Long Island. The railroad currently operates a public commuter rail service, with its freight operations contracted to the New York and Atlantic Railway. With an average weekday ridership of 354,800 passengers in 2016, it is the busiest commuter railroad in North America. It is also one of the world's few commuter systems that runs 24/7 year-round. It is publicly owned by the Metropolitan Transportation Authority, which refers to it as MTA Long Island Rail Road. In 2023, the system had a ridership of 75,186,900, or about 253,800 per weekday as of the fourth quarter of 2023.

<span class="mw-page-title-main">Metro-North Railroad</span> Commuter rail service in New York and Connecticut

Metro-North Railroad, trading as MTA Metro-North Railroad, is a suburban commuter rail service operated by the Metropolitan Transportation Authority (MTA), a public authority of the U.S. state of New York. Metro-North serves the New York Metropolitan Area, running service between New York City and its northern suburbs in New York and Connecticut, including Port Jervis, Spring Valley, Poughkeepsie, Yonkers, New Rochelle, Mount Vernon, White Plains, Southeast and Wassaic in New York and Stamford, New Canaan, Danbury, Bridgeport, Waterbury, and New Haven in Connecticut. Service in Connecticut is operated under contract with the Connecticut Department of Transportation. Metro-North also provides local rail service within the New York City boroughs of Manhattan and the Bronx.

<span class="mw-page-title-main">New Haven Line</span> Metro-North Railroad line in New York and Connecticut

The New Haven Line is a 72.7 mi (117.0 km) commuter rail line operated by the Metro-North Railroad in the U.S. states of New York and Connecticut. Running from New Haven, Connecticut, to New York City, the New Haven Line joins the Harlem Line in Mount Vernon, New York, and continues south to Grand Central Terminal in Manhattan. The New Haven Line carries 125,000 passengers every weekday and 39 million passengers a year. The busiest intermediate station is Stamford, with 8.4 million passengers, or 21% of the line's ridership.

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The Comet railcar is a class of locomotive-hauled railcars that was first designed in the late 1960s by Pullman-Standard as a modern commuter car for North American rail lines. Later, the Comet moniker was adopted by NJ Transit for all of its non-powered single level commuter coaches. Additional series of cars bearing the Comet name, based on the original design, have since been built by Bombardier Transportation and Alstom. The successful design was adopted by numerous commuter agencies.

<span class="mw-page-title-main">Port Washington station</span> Long Island Rail Road station in Nassau County, New York

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<span class="mw-page-title-main">M1/M3 (railcar)</span> Long Island Rail Road and Metro-North car

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<span class="mw-page-title-main">M2/M4/M6 (railcar)</span> Long Island Rail Road and Metro-North car

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<span class="mw-page-title-main">Main Line (Long Island Rail Road)</span> Long Island Rail Road branch

The Main Line is a rail line owned and operated by the Long Island Rail Road in the U.S. state of New York. It begins as a two-track line at Long Island City station in Long Island City, Queens, and runs along the middle of Long Island about 95 miles (153 km) to Greenport station in Greenport, Suffolk County. At Harold Interlocking approximately one mile east of Long Island City, the tracks from the East River Tunnels and 63rd Street Tunnel into Manhattan intersect with the Main Line, which most trains use rather than using the Long Island City station.

The Long Island Rail Road is a railroad owned by the Metropolitan Transportation Authority in the U.S. state of New York. It is the oldest United States railroad still operating under its original name and charter. It consolidated several other companies in the late 19th century. The Pennsylvania Railroad owned the Long Island Rail Road for the majority of the 20th century and sold it to the State in 1966.

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The M8 is an electric multiple unit railroad car built by Kawasaki for use on the Metro-North Railroad New Haven Line and the CTrail Shore Line East. The fleet of 471 cars first entered service in 2011, replacing the M2, M4 and M6 cars, which entered service in 1973, 1987 and 1994, respectively. An additional 60-car order is currently finishing delivery in response to increased ridership and usage on Shore Line East.

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References

  1. "M-7 Electric Multiple Unit - New York, USA". Bombardier. Archived from the original on 2018-01-21. Retrieved 2023-02-04.
  2. Mitsubishi Electric 'Connect' Newsletter, Summer 2006
  3. 25 kV AC ELECTRIFICATION PROJECT ASSESSMENT OF ELECTRIC MULTIPLE UNITS PASSENGER RAIL CARS Page 21-25
  4. APPENDIX 6: Design Data for Electric Multiple Units (EMU) Page 3
  5. 1 2 "Overhaul of M7 and M8 Railcar Traction Motors". New York Bids. MTA - Metro-North Railroad. 12 August 2020.
  6. "Bombardier Transportation Seminar" (PDF). October 11, 2016. Retrieved August 29, 2021.
  7. 1 2 3 Solomon, B. (2016). Field Guide to Trains: Locomotives and Rolling Stock. Voyageur Press. p. 75. ISBN   978-0-7603-5126-0 . Retrieved December 16, 2018.
  8. 'The Girl On The Train'
  9. Castillo, Alfonso A. (April 19, 2021). "LIRR paying $860G for feasibility study on battery-operated commuter trains". Newsday. Retrieved 2021-04-19.
  10. "Six killed as New York train hits vehicle". BBC News Online. 4 February 2015. Retrieved 4 February 2015.
  11. "Evening Long Island Rail Road trains canceled due to derailment". 23 July 2018.
  12. "Witness: Car in train collision was involved in previous crash". News 12 Long Island. February 26, 2019. Archived from the original on February 27, 2019.
  13. Outside Contractor's report Archived 2009-03-05 at the Wayback Machine , October 2007.