Filmed on 21 October 2023
Time of recording: 1207hrs
Line: Circle Line
Station: (CC4) Promenade [(Chinese: 宝门廊Bǎo ménláng, Korean: 산보 (sanbo)]
Rolling stock featured: Alstom Metropolis C830
Electrification: 750 V DC Third rail
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The Alstom Metropolis C830 is the first generation of communication-based train control (CBTC) electric multiple unit rolling stock in operation on the Circle line of Singapore’s Mass Rapid Transit (MRT) system since 2009. Alstom was contracted in 2000 (as part of turnkey contract Contract C830) by the Land Transport Authority (LTA) in Singapore to supply the trains for the Circle line.
In service
28 May 2009; 14 years ago – present
Manufacturer:
Alstom
Built at:
Valenciennes, France
Family name
Metropolis
Constructed:
2006 – 2008
Entered service:
28 May 2009; 14 years ago
Number built:
120 vehicles (40 trainsets)
Number in service:
120 vehicles (40 trainsets)
Formation:
3 per trainset
Mc1–T–Mc2
Fleet numbers:
801 – 840
Capacity:
931 passengers
148 seats
Operator:
SMRT Trains Ltd (SMRT Corporation)
Depot:
Kim Chuan
Line(s) served
CCL Circle line
Specifications
Car body construction
Welded aluminium
Train length:
70.1 m (229 ft 11+7⁄8 in)
Car length:
23.65 m (77 ft 7+1⁄8 in) (Mc)
22.8 m (74 ft 9+5⁄8 in) (T)
Width:
3.21 m (10 ft 6+3⁄8 in)
Height:
3.68 m (12 ft 7⁄8 in)
Floor height:
1,110 mm (43+3⁄4 in)
Doors
1,450 mm (57+1⁄8 in), 8 per car, 4 per side
Articulated sections
2
Maximum speed
90 km/h (56 mph) (design)
78 km/h (48 mph) (service)
Weight:
120 t (120 long tons; 130 short tons) (unladen)
199 t (196 long tons; 219 short tons) (fully laden)
Traction system:
Alstom ONIX SiC–VVVF
Traction motors:
8 × 150 kW (200 hp) 3-phase AC induction motor
Power output:
1.2 MW (1,600 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 collector(s)
Collector shoe
UIC classification
Bo′Bo′+2′2′+Bo′Bo′
Braking system(s):
Regenerative and pneumatic
Safety system(s):
Alstom URBALIS 300 moving block CBTC ATC under ATO GoA 4 (UTO), with subsystems of ATP, Iconis ATS and Smartlock CBI[1][2]
Coupling system:
Scharfenberg
Track gauge
1,435 mm (4 ft 8+1⁄2 in) standard gauge
Operational history and overview:
Despite being similar to the fully underground North East line, the decision was made to power the three-car trains along the Circle line by third rail instead of overhead catenary. 40 trainsets of three cars each were purchased for the Circle line. For the train’s tender, Alstom was awarded the contract on 28 December 2000, beating seven pre-qualified contractors.[3]
Although these cars were similar to their counterparts running on the North East line, they do not feature LCD Displays in each car due to lack of demand along Circle line.[4] However, the ceiling-mounted LED dot matrix displays which display information were retained in the design.
In addition, the front of the train features an extra window cut into the emergency exit door unlike the C751A trains, giving passengers a view of the tunnel.
Driverless Operation
The C830 is fully driverless under normal circumstances, using CBTC which does 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 railway 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.
The coupling configuration of a C830 in revenue service is Mc1–T–Mc2.
Cars of C830
Car Type Quantity Driver Cab Motor Collector Shoe Car Length Wheelchair Bay
m ft in
Mc 2 ✓ ✓ ✓ 23.65 77 ft 7.1 in ✗
T 1 ✗ ✗ ✓ 22.8 74 ft 9.6 in ✓
The car numbers of the trains range from 801x to 840x, where x depends on the carriage type. Individual cars are assigned a four-digit serial number by the rail operator SMRT Trains. A complete three-car trainset consists of one trailer (T) and two driving motor (Mc) cars permanently coupled together. For example, set 801 consists of carriages 8011, 8012 and 8013.
The first digit is always an 8.
The second and third digits identify the set number.
The fourth digit identifies the car number, where the first car has a 1, the second has a 2 and the third has a 3.
Alstom built sets 801–840.
1 Comment
Is it the L set?