Alstom Metropolis C830C

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Alstom Metropolis C830C
C830C train at Kim Chuan Depot.jpg
A C830C train at Kim Chuan Depot
C830C-Interior.JPG
Interior of C830C.
In service26 June 2015;8 years ago (2015-06-26) – Present
ManufacturerShanghai Alstom Transport (Alstom and Shanghai Electric) [1]
Built at Shanghai, China
Family name Metropolis
Constructed2014 – 2015
Entered service26 June 2015;8 years ago (2015-06-26)
Number built72 Vehicles (24 Sets)
Number in service72 Vehicles (24 Sets)
Formation3 per trainset
Mc1–T–Mc2
Fleet numbers841 – 864
Capacity931 passengers
Operators SMRT Trains Ltd (SMRT Corporation)
Depots Kim Chuan
Lines served  CCL   Circle line
Specifications
Car body constructionWelded aluminium
Train length70.1 m (229 ft 11+78 in)
Car length
  • 23.65 m (77 ft 7+18 in) (Mc)
  • 22.8 m (74 ft 9+58 in) (T)
Width3.2 m (10 ft 6 in)
Height3.7 m (12 ft 1+58 in)
Doors1,450 mm (57+18 in), 8 per car, 4 per side
Maximum speed
  • 90 km/h (56 mph) (design)
  • 78 km/h (48 mph) (service)
Traction systemAlstom OPTONIX IGBTVVVF [2]
Traction motors 8 × 150 kW (201 hp) 3-phase AC induction motor
Power output1.2 MW (1,609 hp)
Acceleration 1.1 m/s2 (2.5 mph/s)
Deceleration 1.3 m/s2 (4.3 ft/s2) (Emergency)
Electric system(s) 750 V DC   third rail
Current collector(s) Collector shoe
UIC classification Bo′Bo′+2′2′+Bo′Bo′
Braking system(s) Regenerative and pneumatic
Safety system(s) 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+12 in) standard gauge

The Alstom Metropolis C830C is the second generation of communication-based train control (CBTC) electric multiple unit rolling stock in operation on the Circle line of Singapore's Mass Rapid Transit (MRT) system. 24 trainsets of 3 cars were manufactured by Shanghai Alstom Transport Co Ltd (a joint venture between Alstom and Shanghai Electric), [1] [5] with deliveries from end June 2014. [5]

Contents

Tender

The tender for trains under the contract 830C was opened together with another contract C751C for an additional 18 North East line trains which closed on 18 July 2011 with 5 bids. The Land Transport Authority has shortlisted all of them and the tender results was published on 1 February 2012. [6] [7]

S/NName of tendererAmount ($S) [7]
1 Alstom Transport S.A. / Alstom Transport (S) Pte Ltd Consortium134,000,000.00 [8] (Base Tender 1 - Offered in mixed currencies, and hence the differences of amount shown in the tender document. [6] )
2 Kawasaki Heavy Industries, Ltd. / Kawasaki Heavy Industries(Singapore) Pte Ltd & CSR Qingdao Sifang Consortium / Singapore CSR Sifang Railway Vehicles Service Pte. Ltd. Consortium198,321,046.16 (Base Tender 1)
3 Hyundai Rotem Company 149,121,600.00 (Base Tender 1)
4 Construcciones y Auxiliar de Ferrocarriles, S.A. 115,576,832.68 (Base Tender 1)
5 CRRC Zhuzhou Locomotive (formerly CSR Zhuzhou Electric Locomotive Co., Ltd.) / Siemens Pte Ltd, Singapore Consortium121,842,307.69 (Base Tender 1)

Design

The body shell is identical to its predecessor, the C830, with slight differences such as a larger SMRT logo up front and a different interior. The reserved seats are coloured red to distinguish them from normal seats. Navy blue and yellow coloured seats are installed in the driving motor cars (end carriages) while the seats in the middle car are khaki. [9] The train is equipped with traction motors louder than its predecessor, identical to those found on the M5 Series of the Amsterdam Metro.

Other changes include the inner layer of the doors finished in Bluish-Grey, a new Visual Passenger Information System, similar to the C951(A), located above the doors and a new gangway design similar to the C751C.

The headlights on C830Cs are also much brighter than those on the C830s.

Features

The dynamic route map display (DRMD) as used on the C830C CCL LED map.jpg
The dynamic route map display (DRMD) as used on the C830C

The C830C features a Visual Passenger Information System, letting commuters know what the current and next station is, as well as green blinking lights which indicate the side of which the train doors will open when the train reaches the station.

There is also a dynamic in-train route display, which provides commuters with their route information throughout their journey, and also indicates which side the doors will open. DRMD panels are installed in these trains, which will be slightly modified in 2026 to include Keppel, Cantonment and Prince Edward Road stations on the Circle line Stage 6.

At most stations on the Circle line, the train doors will open on the right side, but some stations like Promenade (Towards HarbourFront) and Bayfront (Towards Stadium) as well as the terminal stations like Dhoby Ghaut and Marina Bay, some trains may open their doors on the left.

Driverless operation

The C830C is fully driverless under normal circumstances, using CBTC which do not require traditional "fixed-block track circuits" for determining train position. Instead, they rely on "continuous two-way digital communication" between each controlled train and a wayside control center, which may control an area of a railroad line, a complete line, or a group of lines. Recent studies consistently show that CBTC systems reduce life-cycle costs for the overall rail property and enhance operational flexibility and control. [10]

Operational issues

Trainset 846 suffered from a faulty signalling hardware, resulting in intermittent signaling issues which caused widespread disruptions to the Circle MRT line for a week in both August and November 2016. [11]

Train formation

The coupling configuration of a C830C in revenue service is Mc1–T–Mc2.

Cars of C830C
Car TypeQuantity Driver Cab Motor Collector Shoe Car LengthWheelchair Bay
mft in
Mc223.6577 ft 7.1 in
T122.874 ft 9.6 in

The car numbers of the trains range from 841x to 864x, where x depends on the carriage type. Individual cars are assigned a 4 digit serial number by the rail operator SMRT Trains. A complete three-car trainset consists of one trailer (T) and two driving motor (Mc) cars permanently coupled together. For example, set 841 consists of carriages 8411, 8412, 8413.

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