SECRET STATION ON SINGAPORE’S CIRCLE LINE! Passing through (CC18) Bukit Brown Station Box

Filmed on 29 May 2024
Time of recording: 1519hrs
Line: Circle Line
Stretch: (EW21/CC22) Buona Vista 》(CC19/DT9) Botanic Gardens

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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.

C830 trains at Kim Chuan Depot (KCD):
https://en.m.wikipedia.org/wiki/File:2_C830_in_KCD.JPG
Interior of the Alstom Metropolis C830 on the Circle line:
https://en.m.wikipedia.org/wiki/File:SMRT_C830_interior.jpg

In service: 28 May 2009; 15 years ago – present
Manufacturer: Alstom
Built at: Valenciennes, France
Family name: Metropolis
Constructed: 2006 – 2008
Entered service: 28 May 2009; 15 years ago
Number built: 120 Vehicles (40 Sets)
Number in service: 120 Vehicles (40 Sets)
Formation: 3-cars per trainset, Mc1–T–Mc2
Fleet numbers: 801 – 840
Capacity: 931 passengers (148 seats) Operators: SMRT Trains Ltd (SMRT Corporation)
Depots: Kim Chuan
Lines 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
Wheel diameter: 850–775 mm (33.5–30.5 in)
Wheelbase: 2.5 m (8 ft 2 in)
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)
Axle load: 16 t (16 long tons; 18 short tons)
Traction system: Alstom ONIX IGBT–VVVF Traction motors: 8 × Alstom 4LCA 2138 150 kW (200 hp) asynchronous 3-phase AC
Power output: 1.2 MW (1,600 hp)
Acceleration: 1.1 m/s2 (2.5 mph/s)
Deceleration: 1.3 m/s2 (2.9 mph/s)(Emergency)
Electric system(s): 750 V DC third rail
Current collector(s): Collector shoe
UIC classification: Bo′Bo′+2′2′+Bo′Bo′
Bogies: Alstom B25
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
Coupling system: Scharfenberg
Track gauge: 1,435 mm (4 ft 8+1⁄2 in)  standard gauge

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.

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.

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 Baymft inMc2✓✓✓23.6577 ft 7.1 in✗T1✗✗✓22.874 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 hasa 1, the second has a 2 and the third has a 3.
Alstom built sets 801 – 840.