Downtown MRT Line

From Wikipedia, the free encyclopedia
  (Redirected from Downtown Line)
Jump to: navigation, search
For the station, see Downtown MRT Station.
     Downtown MRT Line
滨海市区地铁线
டவுன்டவுன் எம்ஆர்டி வழி
MRT map DT.svg
The Downtown Line is coloured blue on system maps.
Overview
Type Rapid transit
System Mass Rapid Transit (Singapore)
Status Opened (Stage 1)
Under construction (Stage 2 & 3)
Termini Bukit Panjang
Expo
Stations 6 (operational)[1]
28 (U/C), 1 (under planning)
Services 1
Operation
Opening 22 December 2013 (Stage 1)
Opening 2016 (Stage 2)
Opening 2017 (Stage 3)
Owner Land Transport Authority
Operator(s) SBS Transit DTL[2]
Rolling stock Bombardier MOVIA C951
Technical
Line length 4.3 km (2.7 mi) (operational)[1]
37.7 km (23.4 mi) (U/C)
Track gauge 1,435 mm (4 ft 8 12 in) standard gauge
Electrification Third rail

The Downtown Line (DTL) is the fifth Mass Rapid Transit line in Singapore. The 4.3-kilometre (2.7 mi), 6 station Stage 1 of the line opened on 22 December 2013,[3] with Stages 2 and 3 due to open in 2016 and 2017 respectively. The line will connect the North-Western and Central-Eastern regions to the new downtown of Singapore.

The Downtown Line interchanges with the North East Line at Chinatown, with the East West Line at Bugis, and with the Circle Line at Bayfront and Promenade. Future extensions of the Downtown Line will interchange with the North East Line at Little India, with the North South Line at Newton, with the East West Line at Tampines and Expo, with the Circle Line at MacPherson and Botanic Gardens, and with the Bukit Panjang LRT at Bukit Panjang.

This line is the third in Singapore to be entirely underground (apart from the Gali Batu Depot). When fully completed, the line will be about 42 km (26 mi) long with 34 stations and will serve more than half a million commuters daily.[4] It will also be the longest driverless rapid transit line in Singapore,[1] surpassing the record set by the Circle Line. Travelling from one end to the other will take about 65 minutes. The line is coloured blue in the rail map.[2]

History[edit]

On 14 June 2005, the Land Transport Authority announced the Downtown Extension of the Circle Line to serve the Downtown at Marina Bay area, where an integrated resort (Marina Bay Sands) and Singapore's second botanical garden (Gardens by the Bay) was to be located. The 3.4-kilometre fully underground line was estimated to cost S$1.4 billion. Construction of the extension was slated to begin in 2007. During the construction of the North East Line at Chinatown station, platform provisions for the Downtown Extension were built to facilitate an interchange station.

A new depot, the Gali Batu Depot, is under construction at part of the former Kwong Hou Sua Teochew Cemetery off Woodlands Road to serve the line.[5]

Stage 1[edit]

LTA's Downtown Line (Stage 1) project office next to Bugis MRT station.

By April 2007, plans were finalized for the extension to connect Promenade with Bugis.[6] The former Downtown Extension of the Circle Line was assimilated into the Downtown Line and was revamped as part of Stage 1, a 4.3-kilometre (2.7 mi), 6 station segment connecting Chinatown to Bugis stations.[1] A new depot, the Gali Batu Depot, is under construction at part of the former Kwong Hou Sua Teochew Cemetery off Woodlands Road to serve the line.[5]

Stage 2[edit]

Stage 2 of the Downtown Line was first conceptualized and announced as the Bukit Timah Line. It was supposedly a 20-kilometer line that would connect the new downtown with the Bukit Panjang, Upper Bukit Timah and Bukit Timah corridor, alleviating the heavy traffic travelling along the sector, but a full route was never released. Provisions were provided at Nicoll Highway station which would have seen the line terminating there and interchanging with the Circle Line.[7]

However, the Nicoll Highway collapse and subsequent feasibility works deemed the old station unusable, with the new station being located in a different location. By July 2008, the Bukit Timah Line was announced to have been rerouted towards Promenade station and rebranded as Stage 2 of the Downtown Line. Now 16.6-kilometre (10.3 mi) long and consisting of twelve stations,[1] including three interchange stations, it is scheduled to be completed by 2016.[8][9] Construction for Stage 2 began on 3 July 2009 with a groundbreaking ceremony at Beauty World Station.[10]

Stage 3[edit]

Stage 3 of the Downtown Line comprises the northern segment of the original Eastern Region Line announced in 2001, a 40-kilometre rectangular loop that would have looped around the Jalan Besar and East Coast areas, intersecting the Circle Line and other current lines along the way and passing through Tampines, Bedok, Marine Parade, MacPherson and Kaki Bukit. The Eastern Region Line was however never built and repeatedly delayed. By 2010, it was announced that the northern segment of the original plan from Chinatown to Expo passing through the Jalan Besar area have been merged with the Downtown Line and their station locations and working names for Stage 3 were officially announced on 20 August 2010.[11] Stage 3 of the Downtown line will be 21-kilometre (13 mi) long and serve 16 stations.[1] In order to accommodate the construction of an additional station at Jalan Besar, the completion of the segment was pushed to 2017. The finalized names for the Stage 3 stations were announced on 19 August 2011.[12]

2011 onwards[edit]

In August 2011, SBS Transit won the bid and was appointed to be the operator of the Downtown Line, under a new framework which would see the authority remaining the owner of the line.[13] Final costs of building the line may reach an estimated S$20.7 billion, up more than 70% from an initial estimation of S$12 billion.[14] In January 2013, plans for a southern extension which will run from Expo through the East Coast area, interchanging with the Eastern Region Line were announced for completion by 2025.[15]

On 24 June 2013, work stopped on the King Albert Park, Sixth Avenue and Tan Kah Kee stations, after Alpine Bau GmbH, the previous main contractor, filed for insolvency on June 19.[16] McConnell Dowell South East Asia (SEA) Private Limited and SK E&C (Singapore) was subsequently contracted to complete the work on the three stations. As a result of the delay, the completion of Downtown Line Stage 2 has been pushed back from December 2015 to the middle of 2016.[17]

Stage 1 of the Downtown Line began service on 22 December 2013,[18] with its official inauguration made on the day before by Prime Minister Lee Hsien Loong.[19]

Stations[edit]

Here are the following station locations for all three stages of the Downtown Line.

Station Number Station Name Interchange/Notes
Stage 2 (under construction)
 DT1  BP6  Bukit Panjang Change to Bukit Panjang LRT
 DT2  Cashew
 DT3  Hillview
 DT5  Beauty World
 DT6  King Albert Park
 DT7  Sixth Avenue
 DT8  Tan Kah Kee
 DT9  CC19  Botanic Gardens Change to Circle Line
 DT10  TS11  Stevens Change to Thomson Line (under construction)
 DT11  NS21  Newton Change to North South Line
 DT12  NE7  Little India Change to North East Line
 DT13  Rochor
Stage 1
 DT14  EW12  Bugis Change to East West Line
 DT15  CC4  Promenade Change to Circle Line
 DT16  CE1  Bayfront Change to Circle Line
 DT17  Downtown
 DT18  Telok Ayer
 DT19  NE4  Chinatown Change to North East Line
Stage 3 (under construction)
 DT20  Fort Canning
 DT21  Bencoolen
 DT22  Jalan Besar
 DT23  Bendemeer
 DT24  Geylang Bahru
 DT25  Mattar
 DT26  CC10  MacPherson Change to Circle Line
 DT27  Ubi
 DT28  Kaki Bukit
 DT29  Bedok North
 DT30  Bedok Reservoir
 DT31  Tampines West
 DT32  EW2  Tampines Change to East West Line
 DT33  Tampines East
 DT34  Upper Changi
 DT35  CG1  Expo Change to East West Line

The Downtown Line's numbering scheme reserves station code "DT4" between Hillview (DT3) and Beauty World (DT5).

Rolling stock[edit]

A view of the Chinatown station on the Downtown Line platform.

The rolling stock consists of Bombardier MOVIA C951 cars,[20] running in three-car formation. They will be stabled at Gali Batu Depot when it opens with Stage 2 of Downtown Line by 2016. For the period between the operation of Downtown Line Stage 1 and Downtown Line Stage 2, trains will be stabled at a maintenance facility that was built at Marina Bay as part of the Circle Line project. Kim Chuan Depot will house the Operations Control Centre for the Downtown Line until Gali Batu Depot is ready to be used.[21]

On 12 October 2012, the first of 11 trains for the Downtown Line Stage 1 arrived at Jurong Port. It was transported to Kim Chuan Depot to undergo testing by LTA before it was handed over to SBS Transit.[22] As of 28 February 2013, Bombardier had delivered five of the 11 trains for Downtown Line Stage 1.[23] LTA together with the operator, SBS Transit, conducted the necessary tests to ensure safety standards, functional performance and systems compatibility requirements were met before revenue service began on 22 December 2013.[3]

Train control[edit]

The Downtown Line is equipped with a fully automatic communication-based train control system, using a digital radio system for communication between trains and the centralised control system.[24] A fall-back signalling system, relying on conventional track-circuit occupancy detection, is included to ensure fully automatic operation and train protection independent of the radio system. Automatic platform screen doors provide safety for passengers, offering protection from arriving and departing trains.

External links[edit]

References[edit]

  1. ^ a b c d e f "Projects - Downtown Line - Stages". Land Transport Authority of Singapore. 17 December 2013. Retrieved 23 June 2014. 
  2. ^ a b "Company Announcement – Incorporation of a Wholly-Owned Subsidiary". 
  3. ^ a b "Land Transport Masterplan: Downtown Line Stage 1 to open on Dec 22". The Straits Times. Retrieved 16 November 2013. 
  4. ^ "MORE TRAINS, MORE CAPACITY, MORE OFTEN", Land Transport Authority
  5. ^ a b "Downtown Line depot to be located off Woodlands Road", Margaret Perry, Channel NewsAsia, 26 February 2008
  6. ^ "Govt approves S$12b MRT Downtown Line to be built by 2018". 
  7. ^ Land Transport Authority (24 January 2014). "Circle Line Linking All Lines". The Straits Times. p. 50. 
  8. ^ "Groundwork begins for new MRT lines", Christopher Tan, The Straits Times, 13 March 2006
  9. ^ "LTA unveils locations of DTL stage 2 stations", Christopher Tan, The Straits Times, 15 July 2008
  10. ^ "Work on MRT Downtown Line Phase 2 Starts", Tyler Thia, Channel NewsAsia, 3 July 2009
  11. ^ Downtown Line 3 Station Locations Unveiled. Land Transport Authority, 20 August 2010
  12. ^ Downtown Line 3 Station Names Announced
  13. ^ LTA Appoints SBS Transit Limited to Operate Downtown Line under New Rail Financing Framework Land Transport Authority – 29 August 2011
  14. ^ "Downtown Line costs soar by more than 70%", Christopher Tan, The Straits Times, 30 October 2012
  15. ^ "TWO NEW RAIL LINES AND THREE NEW EXTENSIONS TO EXPAND RAIL NETWORK BY 2030". Land Transport Authority. January 17, 2013. 
  16. ^ "Work on three DTL2 stations delayed". Channel NewsAsia. June 24, 2013. 
  17. ^ "Stage 2 of Downtown Line to be ready in mid-2016 instead of Dec 2015". Channel NewsAsia. August 29, 2013. 
  18. ^ "Downtown Line". Land Transport Authority. Retrieved 22 December 2013. 
  19. ^ "Downtown Line Stage 1 officially opened by PM Lee". The Straits Times. 21 December 2013. Retrieved 22 December 2013. 
  20. ^ LTA Awards 6 Downtown Line Contracts Totalling $1.13 Billion
  21. ^ Contract 901QP: Terms of Reference, Land Transport Authority, 9 November 2007 (tender document from www.gebiz.gov.sg)
  22. ^ "First Downtown Line train lands in Singapore". Land Transport Authority. Retrieved November 16, 2013. 
  23. ^ "Shorter Waiting Time With 15 More Trains For Downtown Line". Land Transport Authority. March 28, 2013. Retrieved March 28, 2013. 
  24. ^ Invensys Rail secures signalling contract for Singapore’s new Downtown Line