Alstom Metropolis 830C

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Alstom Metropolis C830C
center-left center-right
*Graphic From SGTrains/Wikipedia/LTA
In service 2015 – Present
Manufacturer Shanghai Alstom Transport
Origin Shanghai, China
Constructed 2014 – 2015
Number Built 72 cars (24 Trains)
Body Construction Welded aluminium
Length 23.65 m (Mc1/Mc2)
22.8 m (T)
Width 3.2 m
Height 3.7 m
Doors 1.45 m, 8 per car
Maximum Speed Design: 90 km/h
Service: 78 km/h
Traction Control IGBT-VVVF (Alstom ONIX)
Line Voltage 750V DC Third Rail
Track Gauge 1435 mm Standard Gauge

Alstom Metropolis C830C are the second generation of trains running on the Circle Line. These trains were manufactured from 2014 to 2015 by Alstom Transport under the Contract 830C.


Alstom Transport was awarded Contract C830C in 2012 at a cost of $134 million for the construction of 72 passenger cars.[1]

Faulty Equipment[edit]

Passenger Vehicle 46 suffered from a faulty signalling hardware, resulting in intermittent signaling issues which caused widespread disruptions to the Circle Line for a week in both August and November 2016.[2]


Mc1 T Mc2
Exterior Design
Livery Black,Red (Top to bottom)
Train Run Number Orange LED
Interior Design
Seating Capacity 146
Wheelchair Bay 2, 1 each at either end of Middle Car
Door Closing Indicator Lights 1 Yellow Alert Light (Top)
Passenger Information System Train Travel Information System (LED display)
Dynamic Route Map Display
Safety System ATC, ATO, ATP, ATS
Signalling System Communication Based Train Control
Traction Control IGBT-VVVF (Alstom ONIX)

Fleet Numbering[edit]

The car numbers of the trains range from 841x to 864x, where x depends on the carriage type.

  • The last digit identifies the position of the car from the front end of the train; where ‘1’ represents first car, ‘2’ represents second car and ‘3’ represents third car.
    • (Example) Passenger Vehicle 50 (also 850) would consist of 3 cars with serial number 8501, 8502, 8503 respectively.
  • Depending on the direction of travel, the sequence may be reversed.


  1. "LTA and SMRT Award Contracts for New Trains.". Land Transport Authority (1 Feb 2012). Retrieved 16 November 2013.
  2. "Mystery of Circle Line's signalling woes solved, train with faulty signalling hardware to blame: LTA". Christopher Tan (Straits Times, 11 November 2016).
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