| Alstom Metropolis C830 - Introduction |
The Alstom Metropolis C830 are the second generation of communication-based train control (CBTC) rolling stock for the Circle Line. There are currently 40 trains of 3 cars each.
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
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| Technical Specifications |
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Manufacturer
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Alstom
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Number of Cars
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120
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Car body Construction
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Welded aluminium
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Car length
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23.65 metres
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Width
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3.21 metres
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Height
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3.68 metres
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Doors
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1.45 metres, 8 per car
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Maximum Speed
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90 km/h (Design); 80 km/h (Service)
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Weight
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35 tonnes (without load); 53.8 tonnes (with load)
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Traction System
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IGBT-VVVF (Alstom ONIX)
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Electric System
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750 Volts (Direct Current) - 3rd Rail
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Gauge
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Standard Gauge (1435 millimetres)
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| Design |
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Exterior
The exterior colour of the train is black and curved, giving it a more streamline look with the run number display in Yellow LED Display.
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Interior
The colour of the seats uses a maroon, blue and green.
These cars, although similar to their counterparts running on the North East Line, do not feature LCD displays in each car.
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Viewing Space on Emergency Exit
The front of the train features an extra window cut into the emergency exit door giving passengers a view of the tunnel as the train speeds through something that the C751As does not have.
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Grab Poles at the side of the doors
Grab poles were added at the side of the doors.
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Handgrips
Handgrips are only located in the middle of the train.
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"Doors Closing" Indicator
Yellow alert lights that blink when doors are closing had been position at the middle of each door.
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Gangway
C830 gangway.
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Wheelchair Space
Located in the 2nd car closest to the lift.
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Emergency Communication Button
Located at the side of each doors.
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Builder Plate
The plate lists the companies involved in the manufacture of the train, and also the year it was built.
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| Experimental Programmes |
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Handgrips
Different designs of handgrips were also found in the specially selected cars.
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Additional Grab Poles and Handgrips
Additional grab poles and hand grips was trialed in Car 8042, as an effort by LTA to encourage more commuters to move towards the center of the car.
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| Monthly Featured Photo |
PHOTO:
SBS2991C
THEME: Peak
A typical peak period scenario in an MRT station includes heavy boarding and alighting activities, crowded trains despite decent frequencies, especially in interchange stations. Travel time is also usually longer than the what signboards in platforms stipulate given the huge crowd and other factors like train bunching.
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| Yearly Featured Photo |
PHOTO: tintinspartan
A new train on a bright sunny day.
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