NSW TrainLink D set

The NSW TrainLink D sets, also referred to as the Mariyung trains, are a class of electric multiple units being built to replace NSW TrainLink's Intercity electric multiple unit fleet, replacing the entire V set fleet and allowing the H sets to be reallocated to Sydney suburban services. The trains will operate on services from Sydney to Newcastle, Lithgow and Kiama. The first trains were delivered in December 2019, and are scheduled to enter service in 2022.

D set
D27 on its delivery transfer through Banksia
ManufacturerHyundai Rotem
Built atChangwon, South Korea
Replaced
Constructed2019–present
Number under constructionTotal delivery of 610 carriages (61 4-car sets and 61 6-car sets)
Formation
  • DD-DN-DND-DDA
  • DD-DNL-DT-DN-DND-DDA
Fleet numbers
  • D1–D61 (4-car sets)
  • D101–D161 (6-car sets)
Operator(s)NSW TrainLink
Depot(s)Kangy Angy Maintenance Centre
Line(s) served
Specifications
Car body constructionStainless steel
Train length
  • 81.55 m (267 ft 6+5⁄8 in) (4-car sets)
  • 122.23 m (401 ft 1⁄4 in) (6-car sets)
Car length
  • 20,435 mm (67 ft 1⁄2 in) (DD/DDA)
  • 20.34 m (66 ft 8+3⁄4 in) (DNL/DT/DN/DND)
Width3,034 mm (9 ft 11+1⁄2 in)
Height4,402 mm (14 ft 5+1⁄4 in)
DoorsPlug-style, 2 per side
Maximum speed160 km/h (99 mph)
Weight659.53 t (649.11 long tons; 727.01 short tons) (10 car set)
Traction systemMitsubishi SiC-MOSFET–VVVF[1]
Traction motors3-phase AC induction motor[1]
Acceleration0.8 m/s2 (2.6 ft/s2)
Deceleration1.01 m/s2 (3.3 ft/s2) (service)
1.1 m/s2 (3.6 ft/s2) (emergency)
Electric system(s)1,500 V DC (nominal) from overhead catenary
Current collector(s)Pantograph
UIC classification
  • 2′2′+Bo′Bo′+Bo′Bo′+2′2′ (4-car sets)
  • 2′2′+Bo′Bo′+2′2′+Bo′Bo′+Bo′Bo′+2′2′ (6-car sets)
Coupling systemDellner
Track gauge1,435 mm (4 ft 8+1⁄2 in) standard gauge

History

In May 2014, the Government of New South Wales announced its intention to purchase new carriages for the NSW TrainLink Intercity network. The new trains will replace the V sets and allow the H sets to be cascaded to Sydney Trains services.[2][3]

In August 2014, expressions of interest from manufacturers were called for.[4][5] The following parties responded:[6][7]

In July 2015, the government announced that Alstom, Downer/Changchun, Stadler, and UGL/Mitsubishi Electric/CSR had been shortlisted to tender.[8] Following the merger of CSR and the parent company of Changchun Railway Vehicles, Hyundai Rotem replaced CSR as a partner in the UGL/Mitsubishi Electric consortium.[9] The consortia provided two variants of their designs - a longer train and shorter train.[9] The Hyundai Rotem/UGL/Mitsubishi Electric consortium was announced as the successful bidder in August 2016.[10][11] The companies formed a joint venture called RailConnect to manage the project.[12] The trains are being built by Hyundai Rotem's Changwon factory in South Korea.[13]

The initial contract covered the supply and maintenance of the 512 carriages which would consist of 77 4-car trains and 34 6-car trains, as well as the construction of the Kangy Angy Maintenance Centre.[8][14][15] which was completed in August 2020.[16] The maintenance contract runs for fifteen years from the delivery of the first train with an option for a five-year extension.[13] In February 2019, a further 42 carriages were ordered to extend 21 of the 77 4-car trains into 6-car trains to allow for more 10-car train operations especially on the South Coast line during peak hour.[17]

A contract was let to Downer EDI to make modifications and upgrades to existing rail infrastructure across the electrified network to accommodate the new fleet.[18] Platform extensions at multiple stations were also required to accommodate the 10-car sets.

The first two 10-carriage trains were delivered in December 2019 and testing began the following month.[3][19]

During early ordering stages, the trains were simply referred to as the New Intercity Fleet. In April 2021, the name Mariyung, a Darug word for emu, was officially designated for the fleet.[20]

In July 2021, the Mariyung fleet received its final approval to carry passengers from the independent Office of the National Rail Safety Regulator and would enter service "as soon as possible". At the time, 16 trains were being tested on the network and 8 of which were ready to progressively enter passenger service.[21]

In September 2021, 56 additional carriages were ordered, bringing the total number of carriages to 610, meaning that there would be 61 of both the 4 car and 6 car variants.[22]

Design

The trains are double deck electric multiple units measuring 163 metres for an 8-car set or 204 metres for a 10 car-set.[23] They will include accessible toilets and dedicated space for luggage, prams, bicycles and wheelchairs. Fixed seats on the upper and lower decks will be in a two by two arrangement. The seating will include cup holders, tray tables and arm rests. Each seat will feature a charging station for mobile devices.[12] The trains are being designed to be operated with or without guards, with tender documents stating the trains must support one-man operation.[24]

The new trains are wider than the V sets they replace and required modifications to be made to parts of the Blue Mountains line route to create sufficient clearance from adjacent structures.[15] A contract was awarded to the Continuum Alliance, an alliance between Transport for NSW, CPB Contractors and Lendlease, to make these modifications. Work started in February 2019[25] and was completed in July 2020.[26][27] They are scheduled to enter service in 2022.[28][29]

Services

The trains are expected to operate on the following services:[3]

References
  1. "Mitsubishi Electric to Supply Railway Systems for TfNSW" (PDF). Mitsubishi Electric. 5 September 2016. Retrieved 13 October 2021.
  2. NSW Government to invest $2.8 billion in new intercity trains, making all trains air-conditioned Transport for NSW 8 May 2014
  3. "New Intercity Fleet". Transport for NSW. 12 January 2020. Retrieved 12 January 2020.
  4. Expressions of interest called for new $2.8 billion intercity train fleet Transport for NSW 11 August 2014
  5. New $2.8 billion intercity train fleet for NSW Rail Express 13 August 2014
  6. Strong local and international interest in $2.8 billion intercity fleet project Transport for NSW 9 October 2014
  7. Firms line up for intercity train deal PSnews online 15 October 2014
  8. "Transforming regional train travel: Shortlist announced for new intercity fleet". Transport for NSW. 9 July 2015. Retrieved 9 July 2015.
  9. "Industry asked to tender for delivery of new intercity fleet". Transport for NSW. 4 September 2015.
  10. New Intercity fleet UGL
  11. Transport for NSW extends New Intercity Fleet order International Railway Journal 4 May 2019
  12. "Comfort comes first with New Intercity Trains". Transport for NSW. 18 August 2016.
  13. "UGL as part of RailConnect NSW to deliver $2. 3 billion New Intercity Fleet" (PDF). UGL Limited. 18 August 2016.
  14. "New Intercity Fleet Maintenance Facility - Notice to Residents and Businesses (September 2015)" (PDF). Transport for NSW. Transport for NSW. Archived from the original (PDF) on 2 October 2015. Retrieved 1 October 2015.
  15. New intercity trains too wide for rail line to stations in Blue Mountains Sydney Morning Herald 5 October 2016
  16. "Construction completed on Kangy Angy Rail Facility". Coast Community News. 25 August 2020. Retrieved 31 August 2020.
  17. Explosion in growth; extra Intercity trains purchased to cope with demand Sydney Morning Herald 20 February 2019
  18. "New Intercity Fleet Stations and Signalling Modifications". Transport for NSW. Retrieved 17 May 2019.
  19. "The New Intercity Fleet trains are almost here". Transport for NSW. 3 December 2019. Retrieved 3 December 2019.
  20. "First ride on New Intercity Fleet". NSW Government. 1 April 2021. Retrieved 6 April 2021.
  21. "Mariyung fleet receives final safety tick". Transport for NSW. 30 July 2021. Retrieved 30 July 2021.
  22. "$100m contract extension for UGL". Rail Express. 14 September 2021. Archived from the original on 8 October 2021.
  23. "New Intercity Fleet Fact Sheet - 2019" (PDF). Transport for NSW. p. 5. Retrieved 8 December 2018.{{cite web}}: CS1 maint: url-status (link)
  24. O'Sullivan, Matt (26 September 2016). "Train guards in firing line from NSW's $2.3 billion intercity fleet renewal". The Sydney Morning Herald.
  25. New Intercity Fleet Springwood to Lithgow Rail Corridor Modifications Transport for NSW Reviewed 9 January 2020
  26. "Blue Mountains Line ready for New Intercity Fleet". Rail Express. 21 July 2020. Retrieved 31 August 2020.
  27. "Upgrades to Blue Mountains Line now complete". Transport for NSW. 20 July 2020. Retrieved 31 August 2020.
  28. McKinney, Max (17 October 2020). "More delays for trains". Newcastle Herald. Retrieved 1 November 2020.
  29. Safety is no joke: Constance must not allow unsafe trains on the network The Rail, Tram and Bus Union (RTBU) NSW 1 April 2021

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