Alstom Metropolis 830

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The Alstom Metropolis C830 are the second generation of communication-based train control (CBTC) rolling stock to be used in Singapore’s Mass Rapid Transit (MRT) lines. Alstom was contracted in 2000 as part of turnkey contract C830 by the Land Transport Authority (LTA) in Singapore to supply the trains for the Circle MRT Line.

The automated system version, previously known as “moving block systems”, CBTC systems 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.

Despite being similar to the fully underground North East MRT Line, the decision was made to power the three-car trains along the upcoming Circle MRT Line by third rail instead of overhead catenary. 40 trainsets of three cars each were purchased for the Circle Line.

These cars, although similar to their counterparts running on the North East Line, do not feature LCD displays in each car. Also, the front of the train features an extra window cut into the emergency exit door, something lacking in the North East MRT Line trains.

Specifications

File:C830.JPG
Newly arrived C830 from Alstom stabling in Kim Chuan Depot. Picture from Dinie Razin.
In service 28 May 2009 - Current
Manufacturer Alstom
Built at Valenciennes, France
Family name Metropolis
Constructed 2005 - 2008
Number built 120 carriages (40 trains)
Formation 3 per trainset
Mc1 + T + Mc2
Capacity 931 passengers
148 seats
Operator SMRT Corporation
Depot(s) Kim Chuan
Line(s) served Circle Line
Car body construction Welded aluminium
Car length 23.65 m (Mc)
22.8 m (T)
Width 3.21 m
Height 3.68 m
Floor height 111 cm
Doors 1.4 m, 8 per car
Maximum speed 90 km/h
Weight 35000 kg
Acceleration 1.1 m/s2
Deceleration 1.3 m/s2 (Emergency)
Traction system IGBT-VVVF (Alstom ONIX)
Power output 1.66 MW
Power supply Three-phase AC inverter motors
400kW 400V 231A
Electric system(s) 750 V DC 3rd rail
Safety system(s) Automatic Train Control (ATC) (Communication-based train control (CBTC))
Gauge 1,435 mm (Standard gauge)

Fleet

C830 Fleet Info / Basic Summary

Serial number

Individual cars are given a four-digit serial number by the rail operator, SMRT Corporation.

  • The first digit of a car's serial number is always an eight.
  • The other three digits is the train identification number. A full length train of three cars will have three different consecutive serial numbers. The second and third digits are used to identify the train, while the last digit denotes the carriage of each train. In a full length train, the numbers will end with 1, 2 and 3.

A typical SMRT Circle Line train, for example, would consist of serial numbers 8031, 8032, 8033.

Design

The trains are coloured in black and have a red stripe below it. As for the interior, the 3 colours are pink,blue and green.

Fleet Numbers

(8x03 - 8x42)

The carriage 1 / carriage 2 / carriage 3 can appear in reverse order or non reverse order as it is only a guide line.

Identify Codes
Alstom Metropolis
C830 Trains
Carriage Number Depots Notes:
Carriage 1 Carriage 2 Carriage 3
03 8031 8032 8033 Kim Chuan Depot
04 8041 8042 8043 Kim Chuan Depot
05 8051 8052 8053 Kim Chuan Depot
06 8061 8062 8063 Kim Chuan Depot
07 8071 8072 8073 Kim Chuan Depot
08 8081 8082 8083 Kim Chuan Depot
09 8091 8092 8093 Kim Chuan Depot
10 8101 8102 8103 Kim Chuan Depot
11 8111 8112 8113 Kim Chuan Depot
12 8121 8122 8123 Kim Chuan Depot
13 8131 8132 8133 Kim Chuan Depot
14 8141 8142 8143 Kim Chuan Depot
15 8151 8152 8153 Kim Chuan Depot
16 8161 8162 8163 Kim Chuan Depot
17 8171 8172 8173 Kim Chuan Depot
18 8181 8182 8183 Kim Chuan Depot
19 8191 8192 8193 Kim Chuan Depot
20 8201 8202 8203 Kim Chuan Depot
21 8211 8212 8213 Kim Chuan Depot
22 8221 8222 8223 Kim Chuan Depot
23 8231 8232 8233 Kim Chuan Depot
24 8241 8242 8243 Kim Chuan Depot
25 8251 8252 8253 Kim Chuan Depot
26 8261 8262 8263 Kim Chuan Depot
27 8271 8272 8273 Kim Chuan Depot
28 8281 8282 8283 Kim Chuan Depot
29 8291 8292 8293 Kim Chuan Depot
30 8301 8302 8303 Kim Chuan Depot
31 8311 8312 8313 Kim Chuan Depot
32 8321 8322 8323 Kim Chuan Depot
33 8331 8332 8333 Kim Chuan Depot
34 8341 8342 8343 Kim Chuan Depot
35 8351 8352 8353 Kim Chuan Depot
36 8361 8362 8363 Kim Chuan Depot
37 8371 8372 8373 Kim Chuan Depot
38 8381 8382 8383 Kim Chuan Depot
39 8391 8392 8393 Kim Chuan Depot
40 8401 8402 8403 Kim Chuan Depot
41 8411 8412 8413 Kim Chuan Depot
42 8421 8422 8423 Kim Chuan Depot


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