Alstom Metropolis & Shanghai Electric C830C

Not to be confused with Alstom Metropolis C830.

Alstom Metropolis & Shanghai Electric C830C
180px Interior of C830C Driving Trailer.
Interior of C830C.
In service	26 June 2015 - Present
Manufacturer	Shanghai Alstom Transport (Alstom and Shanghai Electric)
Built at	Shanghai, China
Family name	Metropolis
Constructed	2014–2015
Number built	72 Vehicles (24 Trainsets)
Number in service	72 Vehicles (24 Trainsets)
Formation	3 per trainset Mc1– T–Mc2
Capacity	931 passengers
Operator(s)	SMRT Trains (SMRT Corporation)
Depot(s)	Kim Chuan
Line(s) served	Circle Line
Specifications
Car body construction	Welded Aluminium
Car length	(Mc) (T)
Width
Height
Doors	, 8 per car
Maximum speed	90 km/h (56 mph) (design) 80 km/h (50 mph) (service)
Traction system	IGBT–VVVF (Shanghai Alstom Electrical Equipment OPTONIX)
Power output	1.66 MW (2,230 hp)
Electric system(s)	750 V DC third rail
Current collection method	Collector shoe
Braking system(s)	Regenerative Braking, Air Brakes
Safety system(s)	Alstom URBALIS 300 CBTC ATC with subsystems of ATO GOA 4 (UTO)), ATP, Iconis ATS and Smartlock CBI
Track gauge	1,435 mm (4 ft 8 1⁄2 in) standard gauge

The Shanghai Alstom Metropolis C830C, together with the C751C are the third generation of communication-based train control (CBTC) rolling stock to be used in Singapore’s Mass Rapid Transit (MRT) lines. 24 trainsets of 3 cars were manufactured by Shanghai Alstom Transport Co Ltd (joint venture of Alstom and Shanghai Electric), with deliveries from end June 2014.

History

The contract, worth S$134 million, was awarded to Alstom (as part of turnkey contract C830C) by the Land Transport Authority (LTA) in Singapore to supply additional trains for the Circle MRT Line. Alstom won over Hyundai Rotem, Kawasaki Heavy Industries, Construcciones Y Auxiliar De Ferrocarriles and CSR Zhuzhou to secure the order.

Design

The middle carriage with C830C

The body shell is identical to its predecessor, the C830, with slight differences such as a larger SMRT logo up front but the interior is significantly different. The reserved seats are coloured red to distinguish them from normal seats. Navy blue and tan coloured seats are installed in the driving motor cars (end carriages) while the seats in the middle car are khaki. The train is equipped with a propulsion system that is louder than its predecessor.

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

To spot one of them, their headlights are luminously white instead of warm yellow installed on older trains.

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.

Train Formation

The configuration of a C830C in revenue service is Mc1-Tp-Mc2

Cars of C830C
car type	Driver Cab	Motor	Collector Shoe	car length		Wheelchair Space
				mm	ft in
Mc1	✓	✓	✓	23,650	77 ft 7.1 in
Mc2	✓	✓	✓	23,650	77 ft 7.1 in
Tp	✗	✗	✓	22,800	74 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(Tp) and two driving motor cars(Mc1 & Mc2) permanently coupled together. For example, set 864 consists of carriages 8641, 8642, 8643.

• The first digit is always a 8.
• The second digit and third digit identifies the set number
• The fourth digit is the car number.
  • Alstom Shanghai Electric built sets 841-864

See also

• Alstom Metropolis