Alstom Metropolis C851E
Alstom Metropolis C851E
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Two C851E trains for the North East Line. | |
The interior of the NEL C851E. Apart from a few cosmetic differences, it is virtually identical to the preceding C751C. | |
| Stock type | Electric multiple unit |
| In service |
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| Manufacturer | Alstom |
| Built at | Barcelona, Spain |
| Family name | Metropolis |
| Constructed |
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| Entered service |
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| Number built |
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| Number in service |
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| Formation | 6 per NEL trainset, 3 per CCL trainset
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| Fleet numbers |
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| Capacity |
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| Operators |
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| Depots | |
| Lines served | |
| Specifications | |
| Car body construction | Welded aluminium |
| Train length |
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| Car length |
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| Width | 3.2 m (10 ft 6 in) |
| Height | 3.7 m (12 ft 1+5⁄8 in) |
| Doors | 1,450 mm (57+1⁄8 in), 8 per car, 4 per side |
| Maximum speed |
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| Traction system | Alstom OPTONIX IGBT–VVVF[2] |
| Acceleration | 1.1 m/s2 (3.6 ft/s2) |
| Deceleration | 1.3 m/s2 (4.3 ft/s2) (Emergency) |
| Electric systems |
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| Current collection |
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| UIC classification |
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| Braking systems | Regenerative and pneumatic |
| Safety systems | Alstom URBALIS 300 moving block CBTC ATC under ATO GoA 4 (UTO), with subsystems of ATP, Iconis ATS and Smartlock CBI[3][4] |
| Coupling system | Scharfenberg |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge |
The Alstom Metropolis C851E is the third generation electric multiple unit rolling stock introduced on the existing North East and Circle lines of Singapore's Mass Rapid Transit (MRT) system, manufactured by Alstom under Contract 851E. It consists of six North East line trains and 23 Circle line trains. The trains were manufactured and assembled in Alstom's manufacturing facility in Barcelona, Spain and progressively shipped to Singapore from 2021 for the NEL and 2022 for the CCL.[5] The contract, valued at around S$250 million, was awarded by the Land Transport Authority during a ceremony held at Sengkang Depot.[6] Alstom was the sole bidder for this contract.[7]
Tender
The tender for trains under the contract C851E was closed on 2 October 2017 with Alstom being the sole bidder for this contract.[7] The LTA has shortlisted and the tender results was published.
| S/N | Name of tenderer | Amount ($S) Offer 1[8] | Amount ($S) Offer 2[8] | Remarks |
|---|---|---|---|---|
| 1 | Alstom Transport S.A. / Alstom Transport (S) Pte Ltd Consortium | 279,782,872.00 | 293,489,289.00 | Offer 1 in mixed currencies; S$410,100,934.00 (Alternative in mixed currencies) |
The contract 851E was awarded to the sole bidder Alstom at a cost of $250 million on 30 April 2018.[7][6]
Overview
North East Line
The 6 trains supplements the existing C751A and C751C trains on the North East Line for the 1.7-kilometre (1.1 mi) long extension from Punggol to Punggol Coast which opened on 10 December 2024. The first train set arrived in Singapore on 4 April 2021.[9] On 6 June 2023, a C851E was spotted testing at Potong Pasir MRT station for the first time.[10] The first of these trains entered passenger service on 28 July 2023, and the last set entered service on 28 August 2023, increasing the NEL fleet from 43 to 49 trains in a span of just one month.[1]
Circle Line
The 23 new trains will supplement the existing C830 and C830C trains on the Circle Line when the 4.3km long extension from HarbourFront to Marina Bay opens in 2026. The first train set arrived in Singapore on 11 March 2022.[11] As of January 2026, the new trains have yet to enter service on the Circle Line.
Features
To enable a more robust maintenance regime, all the new trains are equipped with condition monitoring systems to gather data from equipment on the trains. This enables continuous monitoring of the health of the equipment and allows the operator to carry out predictive maintenance for the trains. Contact shoe sensors on the new Circle Line trains enables the operator to react promptly and take necessary measures if any dislodgement is detected.
In addition, two of the new Circle Line trains are each fitted with an Automatic Track Inspection (ATI) System, which enables monitoring of the running rails, track equipment and sleepers while the trains are in operation. The ATI System supplements existing track inspection activities for timely and more effective identification of rail and trackside components which require maintenance.[5]
They are fully automated (ATO GoA 4) and do not require an attendant on board.
On the Circle Line, the trains draw 750 V DC power from a bottom-contact third rail. Each 3-car train (Formation: Mc1–Tc–Mc2) comprises two Motor Cars (Mc1 and Mc2) at each end, and an unpowered Trailer Car (Tc) in the middle. The interior of the Circle Line C851E remains largely consistent with its predecessor, the C830C, save for a few subtle upgrades such as enhanced cabin lighting.
On the North East Line, the trains draw 1,500 V DC power from an overhead catenary. Each 6-car train (Formation: DT–Mp–Mi–Mi–Mp–DT) comprises two Driving Trailer (DT) cars at each end, and four Motor Cars (Mp and Mi). The second and fifth cars of each train (Mp) are equipped with a pantograph. The interior of the North East Line C851E remains largely consistent with its predecessor, the C751C, save for a few subtle upgrades such as enhanced cabin lighting.
References
- ^ a b "New Trains for North East Line to be Rolled Out for Passenger Service from 28 July 2023". LTA. 27 June 2023. Archived from the original on 27 July 2023. Retrieved 27 June 2023.
- ^ "Alstom to supply 34 Metropolis trains and signalling upgrade to Singapore metro". French Chamber Singapore. Archived from the original on 24 September 2015. Retrieved 9 August 2015.
- ^ "Singapore Northeast Line: will soon be the largest, fully automatic metro system in the world" (PDF). pp. 4 to 8. Archived (PDF) from the original on 15 June 2020. Retrieved 16 June 2020.
- ^ "URBALIS Evolution: Controlling the Performance" (PDF). p. 4. Archived (PDF) from the original on 15 June 2020. Retrieved 16 June 2020.
- ^ a b "Alstom to Supply 17 New Trains for North East Line Extension and Circle Line 6". Land Transport Authority. 30 April 2018. Archived from the original on 10 July 2021. Retrieved 23 November 2019.
- ^ a b Lim, Adrian (30 April 2018). "Alstom to supply 17 new MRT trains for North East Line and Circle Line". The Straits Times. Archived from the original on 16 November 2021. Retrieved 30 April 2018.
- ^ a b c "Tender information | Land Transport Authority". www.lta.gov.sg. Archived from the original on 26 July 2018. Retrieved 2 May 2018.
- ^ a b "851E Schedule" (PDF). www.lta.gov.sg. Archived (PDF) from the original on 15 September 2018. Retrieved 15 September 2018.
- ^ "First of six new trains for North-East Line arrived in Singapore". Unscrambled.sg. 12 April 2021. Archived from the original on 5 July 2022. Retrieved 16 March 2022.
- ^ "[Exclusive: Main Line Testing]SBS Transit C851E Set 7091/7092 at Potong Pasir". YouTube. 6 June 2023. Archived from the original on 9 June 2023. Retrieved 9 June 2023.
- ^ "New train for Circle Line MRT arrives in Singapore; first of 23 to be shipped here". The Straits Times. 11 March 2022. Archived from the original on 14 March 2022. Retrieved 16 March 2022.