Difference between revisions of "Alstom Metropolis 751A"

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: ''Not to be confused with [[Kawasaki Heavy Industries & Nippon Sharyo C751B]] and [[Alstom Metropolis C751C]].''
{{Infobox/Train
{| class="toccolours" style="float: right; border-collapse: collapse; margin: 0em 1em;" border="1" cellpadding="2" cellspacing="0"
|Name=Alstom Metropolis C751A
| colspan="2" style="text-align:center" | <big><strong>Alstom Metropolis C751A<br>阿尔斯通 C751A</strong></big>
|Img=[[File:C751A-Ext.png|center-left|160px]] [[File:C751A-Int.png|center-right|160px]]
|Info1=
{{Infoline|In service|2003 – Present}}
{{Infoline|Manufacturer|Alstom}}
{{Infoline|Origin|Valenciennes, France}}
{{Infoline|Constructed|2000 – 2003}}
{{Infoline|Refurbishment|2019 onwards<br>CRRC Nanjing Puzhen}}
{{Infoline|Number Built|150 cars (25 Trains)}}
|Info2=
{{Infoline|Body Construction|Welded aluminium}}
{{Infoline|Length|23.65 m (DT)<br>22.8 (Mp/Mi)}}
{{Infoline|Width|3.2 m}}
{{Infoline|Height|3.7 m}}
{{Infoline|Doors|1.45 m, 8 per car}}
{{Infoline|Maximum Speed|Design: 100 km/h<br>Service: 90 km/h}}
{{Infoline|Traction Control|IGBT-VVVF (Alstom ONIX)}}
{{Infoline|Line Voltage|1500V DC Overhead Catenary}}
{{Infoline|Track Gauge|1435 mm Standard Gauge}}
}}
 
'''Alstom Metropolis C751A''' are the first generation of trains running on the {{NEL}}.
 
==History==
The trains on the North East Line are powered by overhead catenary, a first in history. Rolling stock on all the other operating lines are powered by a third rail because the authorities considered overhead wires to be unsightly and did not allow for trains to be powered using this method on elevated lines. Since this line is the first to be fully underground, the authorities had a choice between powering the trains on this line by overhead catenary or third rail.<ref>[//www.tsd.org/cbtc/projects/SIG_Singapore_AutomaticMetro_en.pdf  "Singapore Northeast Line: will soon be the largest, fully automatic metro system in the world"]</ref>.
 
===Refurbishment===
On 17 December 2018, the Land Transport Authority had awarded the contract worth about $116.7 million to CRRC Nanjing Puzhen for the refurbishment of C751A.<ref>[//www.lta.gov.sg/apps/news/page.aspx?c=2&id=f901e290-ad09-4d05-9309-c974aa26c0ae "Enhancement works for the North East Line to commence in 2019"]. Land Transport Authority (17 December 2018). Retrieved 25 December 2018.</ref> LTA said the reasons for refurbishment were due to the aging of system and to prevent the incidents (2011 & 2015 MRT Disruption) from occurring again which causes great inconvenience to commuters. The whole refurbishment is expected to start in 2019 and end in 3rd quarter of 2024.
 
==Design/Features==
{| class="toccolours" border=1 style="text-align:center;"
|-class="SBST"
!class="LTA"|
!colspan=2|Initial
|-
|-
| colspan="2"| [[Image:C751A front.jpg|center|300px]] Front of an Alstom Metropolis C751A at Sengkang Depot.
!
|colspan=2|<div class="train">{{TrainCar|DT|6964BE|left}} {{TrainCar|Mp|6964BE}} {{TrainCar|Mi|6964BE}} {{TrainCar|Mi|6964BE}} {{TrainCar|Mp|6964BE}} {{TrainCar|DT|6964BE|right}}</div>
|-style="background-color:#DDD"
!colspan=3|Exterior Design
|-
|-
! In service
!style="text-align:left"|Livery
| 20 June 2003 - Current
|colspan=2|Black,Red,Purple,White (Top to bottom)
|-
! Manufacturer
| Alstom
|-
|-
! Built at
!style="text-align:left"|Train Run Number
| Valenciennes, France
|colspan=2|Orange LED
|-style="background-color:#DDD"
!colspan=3|Interior Design
|-
|-
! Family name
!rowspan=2 style="text-align:left"|Seating Capacity
| Metropolis
!Original!!Bar Train
|-
|-
! Constructed
|296||240
| 2000 - 2003
|-
|-
! Number built
!style="text-align:left"|Wheelchair Bay
| Passenger service: 150 carriages (25 trains)
|colspan=2|2, 1 each at Third and Fourth Car
|-
|-
! Formation
!style="text-align:left"|Door Closing Indicator Lights
| 6 per trainset<br>TC - M - M - M - M - TC
|colspan=2|1 Yellow Alert Light (Top)
|-
|-
! Capacity
!style="text-align:left"|Passenger Information System
| 1920 passengers<br>296 seats
|colspan=2|Visual Passenger Information System (LED display<span style='color:#888;'><s> + LCD screen</s></span>)
|-style="background-color:#DDD"
!colspan=4|System
|-
|-
! Operator
!style="text-align:left"|Safety System
| SBS Transit
|colspan=2|ATC, ATO, ATP, ATS
|-
|-
! Depot(s)
!style="text-align:left"|Signalling System
| [[Sengkang Depot|Sengkang]]
|colspan=2|Communication Based Train Control
|-
|-
! Line(s) served
!style="text-align:left"|Traction Control
| [[North East Line]]
|colspan=2|IGBT-VVVF (Alstom ONIX)
|-
| style="background:#efefef;" align="center" colspan="2"| <strong>Specifications</strong> 
|
! Car body<br>construction
| Welded aluminium
|-
! Car length
| 23.65 m (TC)<br>22.8 (M)
|-
! Width
| 3.2 m
|-
! Height
| 3.7 m
|-
! Floor height
| 1.1 m
|-
! Doors
| 1.4 m, 8 per car
|-
! Maximum speed
| 100 km/h
|-
! Weight
| 35000 kg
|-
! Acceleration
| 1.1 m/s<sup>2</sup>
|-
! Deceleration
| 1.4 m/s<sup>2</sup> (Emergency)
|-
! Traction system
| IGBT-VVVF<br>(Alstom ONIX 1500)
|-
! Engine(s)
| Three-phase induction motor (S120-3380)<br>140kW 550V 193A 1760rpm
|-
! Electric system(s)
| 1500 V AC Overhead catenary
|-
! Bogies
| 16 t per axle
|-
! Safety system(s)
| Alstom's MASTRIA ATP and ATO<br>Alstom's URBALIS ATC/CBTC
|-
! Gauge
| 1,435 mm Standard gauge
|}
|}


The '''Alstom Metropolis C751A''' are the first generation of communication-based train control (CBTC) rolling stock that has been in use in Singapore’s [[Mass Rapid Transit (Singapore)|Mass Rapid Transit]] (MRT) lines since 2003. Alstom was contracted in 1997 and 1998 (as '''C751A''') by the [[Land Transport Authority]] (LTA) in Singapore to supply for its [[North East Line]] in 2003.
==Fleet Numbering==
The car numbers of the trains range from 7x001 to 7x050, where x depends on the carriage type.
*The second digit identifies the position of the car from the closest end of the train; where ‘1’ represents first car, ‘2’ represents second car and ‘3’ represents third car.
**(Example) Passenger Vehicle 7049/7050 would consist of 6 cars with serial number 71049, 72049, 73049, 73050, 72050 and 71050 respectively.
*Depending on the direction of travel, the sequence may be reversed.


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.
==References==
 
<references/>
A development in Singapore's MRT history, the six-car trains on the North East Line are powered by overhead catenary, in contrast to the train cars on all the other operating lines prior to this, which are powered by a third rail. This was partially because authorities consider overhead wires to be unsightly and it does not allow for trains to be powered using this method on elevated lines. Since this line is the first to be fully underground in Singapore, the authorities had a choice between powering the trains on this line by overhead catenary or third rail. An overhead catenary power supply was decided upon. This is also the first time in the history of Singapore's MRT history that the seats in every compartment of the train are made up of the same colours. 25 trainsets of six cars each were purchased for the North East Line. In addition, due to its driverless configuration, it is a unique type of train where there are windows at the front and back of the train, giving passengers an impressive view as the train speeds through the tunnel. LTA says that they are adding 18 new trains for the [[North East Line]] within 5-6 years time.
 
==Fleet==
[[C751A Fleet Info]]
 
==Information System==
* 2 Visual Passenger Information System or VPIS installed in each train cars. These displays are capable of displaying the name of the next station, current station, door closing messages and occasionally the date and the time.
* 6 Liquid Central Displays or LCDs are installed at the overhead panel in each train cars showing advertisements. These show rail travel information of the next station & terminating station, silent commercials and movie trailers and safety videos. As of today, the units on the C751A have stopped showing commercials due to lack of demand.


==Serial number==
{{Mass Rapid Transit}}
Individual cars are given a five-digit serial number by the rail operator, SBS Transit. The car numbers of the trains range from 7x001 to 7x050, where x depends on the carriage type. To avoid confusion with the serial numbers of Kawasaki Heavy Industries C151, which this number scheme follows, a 7 will be placed together with the other 4 digits.
{{North East Line}}
* 1st digit is always a 7.
* 2nd digit depends on whether the car is the 1st, 2nd or 3rd car from the end of the train it is nearer to.
* 3rd digit is always a 0.
* The last 2 digits will be from 01 to 50, as the train identification number.
* So for example an Alstom Metropolis C751A on the NEL (in this case, 001/002), would consist of serial numbers 71001, 72001, 73001, 73002, 72002, 71002.
 
==References==
* [http://www.transport.alstom.com/_eLibrary/brochure/upload_73748.pdf "Singapore Northeast Line - The first fully automatic heavy metro system"]. Alstom. Archived from the original on 2007-09-29. Retrieved 2008-02-25.
* [http://www.tsd.org/cbtc/projects/SIG_Singapore_AutomaticMetro_en.pdf "Singapore Northeast Line: will soon be the largest, fully automatic metro system in the world"]. Alstom. Retrieved 2008-11-09.
* [http://www.alstom.com/transport/products-and-services/signalling/urbalis-control-system/ http://www.alstom.com/transport/products-and-services/signalling/urbalis-control-system/]
* [http://www.alstom.com/assetmanagement/DownloadAsset.aspx?ID=f8a7ad03-3004-4f8b-97ef-c1a192a8a25b&version=8ad42650118a4e0f8a6209c5dc6f1c6c2.pdf&lang=2057 http://www.alstom.com/assetmanagement/DownloadAsset.aspx?ID=f8a7ad03-3004-4f8b-97ef-c1a192a8a25b&version=8ad42650118a4e0f8a6209c5dc6f1c6c2.pdf&lang=2057]
* [http://www.stee.com.sg/pdf/railway_systems/VPIS_Eng.pdf http://www.stee.com.sg/pdf/railway_systems/VPIS_Eng.pdf]


==Related Links==
[[Category:Train Rolling Stock]]
*[[Trains]]
*[[Trains in Depots]]
{{Mass Rapid Transit (Singapore)}}

Revision as of 12:14, 4 August 2019

Alstom Metropolis C751A
center-left center-right
*Graphic From SGTrains/Wikipedia/LTA
In service 2003 – Present
Manufacturer Alstom
Origin Valenciennes, France
Constructed 2000 – 2003
Refurbishment 2019 onwards
CRRC Nanjing Puzhen
Number Built 150 cars (25 Trains)
Statistics
Body Construction Welded aluminium
Length 23.65 m (DT)
22.8 (Mp/Mi)
Width 3.2 m
Height 3.7 m
Doors 1.45 m, 8 per car
Maximum Speed Design: 100 km/h
Service: 90 km/h
Traction Control IGBT-VVVF (Alstom ONIX)
Line Voltage 1500V DC Overhead Catenary
Track Gauge 1435 mm Standard Gauge

Alstom Metropolis C751A are the first generation of trains running on the North East Line.

History

The trains on the North East Line are powered by overhead catenary, a first in history. Rolling stock on all the other operating lines are powered by a third rail because the authorities considered overhead wires to be unsightly and did not allow for trains to be powered using this method on elevated lines. Since this line is the first to be fully underground, the authorities had a choice between powering the trains on this line by overhead catenary or third rail.[1].

Refurbishment

On 17 December 2018, the Land Transport Authority had awarded the contract worth about $116.7 million to CRRC Nanjing Puzhen for the refurbishment of C751A.[2] LTA said the reasons for refurbishment were due to the aging of system and to prevent the incidents (2011 & 2015 MRT Disruption) from occurring again which causes great inconvenience to commuters. The whole refurbishment is expected to start in 2019 and end in 3rd quarter of 2024.

Design/Features

Initial
DT Mp Mi Mi Mp DT
Exterior Design
Livery Black,Red,Purple,White (Top to bottom)
Train Run Number Orange LED
Interior Design
Seating Capacity Original Bar Train
296 240
Wheelchair Bay 2, 1 each at Third and Fourth Car
Door Closing Indicator Lights 1 Yellow Alert Light (Top)
Passenger Information System Visual Passenger Information System (LED display + LCD screen)
System
Safety System ATC, ATO, ATP, ATS
Signalling System Communication Based Train Control
Traction Control IGBT-VVVF (Alstom ONIX)

Fleet Numbering

The car numbers of the trains range from 7x001 to 7x050, where x depends on the carriage type.

  • The second digit identifies the position of the car from the closest end of the train; where ‘1’ represents first car, ‘2’ represents second car and ‘3’ represents third car.
    • (Example) Passenger Vehicle 7049/7050 would consist of 6 cars with serial number 71049, 72049, 73049, 73050, 72050 and 71050 respectively.
  • Depending on the direction of travel, the sequence may be reversed.

References

icon Mass Rapid Transit [ VTE ]
Overview HistoryStationsFare and TicketingFacilitiesSafetySecurity
Lines North–South LineEast–West LineNorth East LineCircle LineDowntown LineThomson–East Coast Line
FutureJurong Region LineCross Island Line
Rolling Stocks 151151A151B151CR151T251651751A751B751C830830C851E951
FutureJ151 • CR151
Depots BishanChangiGali BatuKim ChuanMandaiSengkangUlu PandanTuas
FutureChangi East • East CoastTengah
icon North East Line [ VTE ]
Stations HarbourFrontOutram ParkChinatownClarke QuayDhoby GhautLittle IndiaFarrer ParkBoon KengPotong PasirWoodleighSerangoonKovanHougangBuangkokSengkangPunggol
North East Line extension: Punggol Coast
Rolling Stock 751A751C851E
Depots Sengkang
Others Bridging Service