Alstom Metropolis C751C
| Company type | Joint venture |
|---|---|
| Industry | Rail transport manufacturing |
| Founder | Alstom and Shanghai Electric (joint venture) |
| Headquarters | Shanghai , China |
Area served | Singapore |
| Products | Alstom Metropolis C751C electric multiple units |
{{Infobox train
| name =
| image = C751C train at Sengkang Depot.jpg
| caption = An Alstom Metropolis C751C train stationed at Sengkang Depot
| stocktype = Electric multiple unit
| service = – Present
| manufacturer = Shanghai Alstom Transport (a joint venture between Alstom and Shanghai Electric)
| factory = Shanghai, China
| family = Metropolis
| yearconstruction = 2014 – 2016
| yearservice =
| numberbuilt = 108 Vehicles (18 Sets)
| numberservice = 108 Vehicles (18 Sets)
| formation = 6 cars per trainset
DT–Mp–Mi+Mi–Mp–DT
| fleetnumbers = 7051/7052 – 7085/7086
| capacity = 1920 passengers (320 per car)
| operator = SBS Transit Ltd (ComfortDelGro Corporation)
| depots = Sengkang
| lines = North East line
| carbody = Welded Aluminium
| trainlength =
| carlength =
| width =
| height =
| floorheight =
| doors = , 8 per car, 4 per side
| maxspeed =
| traction = Alstom OPTONIX IGBT–VVVF
| traction motors = 16 × 3-phase AC induction motor
| poweroutput =
| electricsystem = overhead catenary
| collectionmethod = Pantograph
| uicclass = 2′2′+Bo′Bo′+Bo′Bo′+Bo′Bo′+Bo′Bo′+2′2′
| brakes = Regenerative and pneumatic
| safety = Alstom URBALIS 300 moving block CBTC ATC under ATO GoA 4 (UTO), including ATP, Iconis ATS and Smartlock CBI
|}
The Alstom Metropolis C751C represents the second generation of communication-based train control (CBTC) electric multiple units operating on Singapore’s North East MRT line. Manufactured by Shanghai Alstom Transport Co Ltd—a collaboration between Alstom and Shanghai Electric—this fleet consists of eighteen six-car sets. Deliveries commenced in July 2014 and concluded by 2015, aligning with Singapore’s objectives to boost capacity and operational dependability on the North East line.
Tender
The procurement process for the trains under contract 751C was initiated concurrently with contract C830C, which involved acquiring an additional 24 trains for the Circle MRT line. The tender closed on 18 July 2011, attracting four submissions. All bidders were shortlisted by the Land Transport Authority, with the final outcome announced on 1 February 2012.
| S/N | Tenderer Name | Bid Amount (SGD) |
|---|---|---|
| 1 | Alstom Transport S.A. / Alstom Transport (S) Pte Ltd Consortium | 234,900,000.00 |
| 2 | Hyundai Rotem Company | 284,954,400.00 |
| 3 | Construcciones y Auxiliar de Ferrocarriles, S.A. | 234,443,494.80 |
| 4 | CRRC Zhuzhou Locomotive / Siemens Pte Ltd Consortium | 245,076,923.08 |
Design
While the C751C retains much of the external styling found on its predecessor, the Alstom Metropolis C751A, including overall shape and color scheme, it features an additional window on the detrainment doors at each end to enhance track visibility. The detrainment mechanism itself has been modified compared to the C751A model. Internally, the train incorporates redesigned gangways similar to those used in the Alstom Metropolis C830C. The seating utilizes a purple hue reminiscent of that found in the Bombardier Movia C951/C951A and Bombardier Innovia APM 100 C801A trains, with priority seats distinctly marked in red. A dynamic route-map display system comparable to those in the C830C and C951 models is installed.
From a technical standpoint, the C751C is equipped with traction motors that emit a louder and higher-pitched sound than its predecessor and employs overhead line gearboxes without integrated LCD screens. Additionally, the interior ceiling is finished in white rather than beige, representing a subtle update from the earlier design seen in the C751A.
Features
The train is equipped with a Visual Passenger Information System that shows the current station and the upcoming stop, accompanied by green flashing lights that indicate which side the doors will open at each station.
A continuously updating in-train route display (DRMD) provides passengers with real-time route details and highlights door opening sides. In 2023, this system was upgraded to incorporate the Punggol Coast extension and the Thomson-East Coast Line interchange at Outram Park, aligning its functionality with that of the Alstom Metropolis C851E displays.
On the North East line, most stations have doors opening on the right; however, terminal stations such as HarbourFront and Punggol Coast may feature left-side door openings.
Driverless operation
The C751C utilizes fully automated driverless technology powered by CBTC, which replaces conventional fixed-block track circuits. This system relies on continuous bidirectional digital communication between trains and wayside control centers responsible for specific track segments or entire routes. CBTC enhances operational flexibility and control while lowering lifecycle expenses.
Train formation
C751C trainsets follow a DT–Mp–Mi+Mi–Mp–DT arrangement.
| Car Type | Driver Cab | Motor | Pantograph | Car Length | Wheelchair Bay | |
|---|---|---|---|---|---|---|
| m | ft in | |||||
| DM | ✓ | ✗ | ✗ | 23.65 | 77 ft 7.1 in | ✗ |
| Mp | ✗ | ✓ | ✓ | 22.8 | 74 ft 9.6 in | ✗ |
| Mi | ✗ | ✓ | ✗ | 22.8 | 74 ft 9.6 in | ✓ |
Train identification numbers range from 7x051 to 7x086, with operators SBS Transit assigning a five-digit serial code. Each six-car trainset consists of two identical sets, each containing one driving trailer (DT) and two motor cars (Mi and Mp) permanently coupled. For instance, set 7061/7062 is composed of cars 71061, 72061, 73061, 73062, 72062, and 71062.
Numbering conventions include:
- The initial digit is always 7.
- The second digit denotes car position (1 for first car, 2 for second, 3 for third).
- The third digit is consistently 0.
- The last two digits represent the train's unique identification number; a full six-car train has two such numbers (e.g., 7051/7052).
- Sets numbered from 7051/7052 through 7085/7086 were produced by Alstom.