Alstom Metropolis C830C
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Alstom Metropolis & Shanghai Electric C830C
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Interior of C830C.
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| 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 |
| Fleet numbers | 841 ~ 864 |
| Capacity | 931 passengers |
| Operator(s) | SMRT Trains (SMRT Corporation) |
| Depot(s) | Kim Chuan |
| Line(s) served | CCL Circle Line |
| Specifications | |
| Car body construction | Welded Aluminium |
| Car length | 23.65 m (77 ft 7 1⁄8 in) (Mc) 22.8 m (74 ft 9 5⁄8 in) (T) |
| Width | 3.2 m (10 ft 6 in) |
| Height | 3.7 m (12 ft 1 5⁄8 in) |
| Doors | 1,450 mm (57 1⁄16 in), 8 per car |
| Maximum speed | 90 km/h (56 mph) (design) 78 km/h (48 mph) (service) |
| Traction system |
IGBT–VVVF (Shanghai Alstom Electrical Equipment OPTONIX) |
| Power output | 1.66 MW (2,230 hp) |
| Acceleration | 1.1 m/s2 (3.6 ft/s2) |
| Deceleration | 1.3 m/s2 (4.3 ft/s2) (Emergency) |
| 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 Moving Block 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) 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.
The tender for trains under the contract 830C was opened together with another contract C751C for an additional 18 North East Line trains which was closed on 18 Jul 2011 with 5 bids. The Land Transport Authority has shortlisted all of them and the tender results was published on 1 Feb 2012.
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 yellow 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.
The headlights on C830Cs are luminous white instead of the warm yellow ones on C830s.
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.
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Wikipedia