Alstom Metropolis & Shanghai Electric C751C

Alstom Metropolis & Shanghai Electric C751C
In service	1 October 2015 - present
Manufacturer	Shanghai Alstom Transport (Alstom and Shanghai Electric)[1]
Built at	Shanghai, China
Family name	Metropolis
Constructed	2014–2016
Entered service	2015
Number built	108 Vehicles (18 Trainsets)
Number in service	108 Vehicles (18 Trainsets)
Formation	6 per trainset DT-Mp-Mi-Mi-Mp-DT
Fleet numbers	7051/7052 ~ 7085/7086
Capacity	1920 passengers (320 per car)
Operator(s)	SBS Transit (ComfortDelGro Corporation)
Depot(s)	Sengkang
Line(s) served	North East Line
Specifications
Car body construction	Welded Aluminium
Car length	23.65 m (77 ft 7 1⁄8 in) (Tc) 22.8 m (74 ft 9 5⁄8 in) (Mp/Mi)
Width	3.2 m (10 ft 6 in)
Height	3.7 m (12 ft 1 5⁄8 in)
Floor height	1,100 mm (43 1⁄4 in)
Platform height	(?)
Doors	1,450 mm (57 1⁄8 in), 8 per car
Maximum speed	100 km/h (62 mph) (design) 90 km/h (56 mph) (service)
Traction system	IGBT–VVVF (Shanghai Alstom Electrical Equipment OPTONIX)[2]
Traction motors	Three-phase AC induction motor 150 kW (200 hp)
Power output	2.4 MW (3,200 hp)
Electric system(s)	1500 V DC overhead catenary
Current collection method	Pantograph
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 C751C together with the Alstom Metropolis C830C are the third generation of communication-based train control (CBTC) rolling stock to be used in Singapore’s Mass Rapid Transit (MRT) lines. 18 trainsets of 6 cars were manufactured by Shanghai Alstom Transport Co Ltd (joint venture of Alstom and Shanghai Electric),^[1] Deliveries began in July 2014 and is expected to continue through 2015.^[3][4][5]

As of 1 October 2015, the first trainset (7055/7056) has been deployed for service.

Tender

The tender for trains under the contract 751C was opened together with another contract C830C for an additional 24 Circle Line trains which was closed on 18 Jul 2011 with 4 bids. The Land Transport Authority has shortlisted all of them and the tender results was published on 1 Feb 2012.^[6][7]

Design

Externally, the C751C is share similarities with its predecessor, the Alstom Metropolis C751A in terms of shape, color and appearance, but has an additional window on the detrainment doors located at the ends of the train, allowing passengers to see the tracks ahead. The interior of the C751C is similar to the C751A but has redesigned gangways similar to those on the C830C. The seat colours are similar to the Bombardier MOVIA C951 and C801A, having a purplish tint. Priority seats can be identified by their red colouration. The C751C has a dynamic route-map system, similar to the C830C and C951. It also has a louder and higher-pitched propulsion system, which sounds similar to the propulsion system of C151 trains. It is equipped with a new type of current collector.

But there is 2 areas to view at each end because, this line is Overhead Lines, therefore they have the Overhead Lines gearbox on it, during peak hours, the SBS Transit assistance need to deploy during peak hours, hence the passengers only allow to view one area, which is the emergency exit window. The difference between C751A and C751C is that there is no LCD Displays compare to the C751A trains, also the top is white colour instead of beige-orange colour top.

Features

It 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. At most stations on the North East Line, the train doors will open on the right side, but at terminus stations like Punggol and HarbourFront, doors may open on the left.

Driverless operation

The C751C 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.^[9]

Train Formation

The configuration of a C751C in revenue service is DT-Mp-Mi-Mi-Mp-DT

The car numbers of the trains range from 7x051 to 7x086, where x depends on the carriage type. Individual cars are assigned a five-digit serial number by the rail operator SBS Transit. A complete six-car trainset consists of an identical twin set of one Driving trailer(DT) and two motor cars(Mi & Mp) permanently coupled together. For example, set 051/052 consists of carriages 71051, 72051, 73051, 73052, 72052 and 71052.

• The first digit is always a 7.
• The second digit identifies the car number, where the first car has a 1, the second has a 2 & the third has a 3.
• The third digit is always a 0.
• The fourth digit and fifth digit are the train identification numbers. A full length train of 6 cars have 2 different identification numbers, one for the first 3 cars, and the same number plus 1, for the other three.
  • Alstom Shanghai Electric built sets 7051-7086.

See also

• Alstom Metropolis

References

Wikimedia Commons has media related to Mass Rapid Transit (Singapore)#Trains.

Rail transport in Singapore
Overview	History Nicoll Highway collapse Major disruptions Stations Fares and ticketing EZ-Link NETS CEPAS Facilities STARiS Safety Security Public Transport Security Command
MRT Lines	Current  NSL  North South  EWL  East West  NEL  North East  CCL  Circle  DTL  Downtown Under construction  TEL  Thomson-East Coast Future  JRL  Jurong Region  CRL  Cross Island Defunct ■ Branch
LRT Lines	Current  BPLRT  Bukit Panjang  SKLRT  Sengkang  PGLRT  Punggol
Other Lines	Current Sentosa Express Changi Airport Skytrain Defunct Jurong Bird Park Panorail Sentosa Monorail
Rolling stock	Current (MRT) C151 C151A C651 C751A C751B C751C C830 C830C C951 Current (LRT) C801 C801A C810 C810A Other Lines Hitachi Monorail Crystal Mover (Skytrain) Future C151B CT251 C151C Defunct Adtranz C-100
Depots	Current Bishan Changi Gali Batu Kim Chuan Sengkang Ulu Pandan Ten Mile Junction Under construction Tuas Mandai
Companies	ComfortDelGro SBS Transit SMRT Corporation SMRT Trains