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Downtown MRT line

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Not to be confused with the Downtown MRT station, which the Downtown line trains call at.


Downtown line
Downtown MRT station, one of the 34 stations on the line.
Overview
Native nameMalay: Laluan MRT Pusat Bandar
Chinese: 滨海市区地铁线
Template:Lang-ta
StatusOperational (Stages 1, 2 & 3)
Under construction (Stage 3e)
Under planning (Hume)
OwnerLand Transport Authority
Termini
Stations34 (Operational) [1]
2 (Under construction)
1 (Under planning)
Service
TypeRapid transit
SystemMass Rapid Transit (Singapore)
Services1
Operator(s)SBS Transit DTL[2]
Depot(s)Gali Batu
Tai Seng
East Coast (Future)
Rolling stockC951/C951A
Daily ridership470,000 (Q1 2018)
History
Planned opening2024; 0 years ago (2024) (Stage 3e)
2025; 1 year's time (2025) (Hume)
Opened22 December 2013; 10 years ago (2013-12-22) (Stage 1)
27 December 2015; 8 years ago (2015-12-27) (Stage 2)
21 October 2017; 7 years ago (2017-10-21) (Stage 3)
Technical
Line length41.9 km (26.0 mi) (Operational)[1]
2.2 km (1.4 mi) (Under construction)
CharacterFully Underground
Track gauge1,435 mm (4 ft 8+1⁄2 in) standard gauge
Electrification750 V DC Third rail
Operating speedlimit of 80 km/h
Route map

The Downtown line (DTL) is a medium-capacity Mass Rapid Transit line in Singapore. It runs from Bukit Panjang in the north-west to Expo in the east. Currently, the line is 41.9 kilometres (26.0 mi) long and has 34 stations, all of which are underground. The line is coloured blue on the rail map.[2]

The original line was built in 3 stages, which opened in 2013, 2015 and 2017 respectively.[3][4][5][6] Stage 3e, an extension of the line to Sungei Bedok, is under construction and will be completed in 2024,[7] and Hume MRT station is planned to open in 2025.[8] The line connects the North-Western and Central-Eastern regions to downtown Singapore.

This line is the fifth MRT line on the network to be opened, the third to be entirely underground, and, with 3-car trains, the second medium-capacity line after the Circle line. When fully completed in 2024, the line will be about 44 kilometres (27 mi) long with 36 stations, and will serve more than half a million commuters daily.[9] It will also be the longest rapid transit line in Singapore to use completely automated, driverless trains,[1] the longest of such lines in the world and the longest rapid transit line in South East Asia.[10] Travelling from one end to the other will take around 67 minutes. It is the second MRT line to be operated by SBS Transit after the North East line.

Overview

Map
Location of Downtown MRT line

The line begins in Bukit Panjang, and then goes through the ‘school district’ and food enclaves of Bukit Timah before entering the central area, passing through Little India before reaching the Central Business District via Bugis and Chinatown. After this, it goes to Fort Canning, Geylang Bahru and MacPherson after intersecting itself.

The line then goes eastwards through the industrial areas of Kampong Ubi and Kaki Bukit, before continuing towards the Tampines Regional Centre and ending at Changi Business Park.

Connecting the Downtown line to the Thomson–East Coast line, the DTL3 extension (DTL3e) improves public transport accessibility to the Changi Business Park and Expo area.[11]

History

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 began in January 2008. During the construction of the North East line at Chinatown station, platform provisions were built to facilitate an interchange station. In August 2011, SBS Transit won the bid and was appointed the operator of the Downtown line, under a new framework which would see the authority remaining the owner of the line.[12]

The original line was built in 3 stages, as follows:

Stage 1 of the Downtown line, stretching 4.3-kilometre (2.7 mi), began service on 22 December 2013,[13] with its official inauguration made on the day before by Prime Minister Lee Hsien Loong.[14]

Stage 2 of the Downtown line was first conceptualized and announced as the Bukit Timah line. It was supposedly a 20-kilometre 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 released. Provisions were provided at Nicoll Highway station which would have seen the line terminating there and interchanging with the Circle line.[15] However, the Nicoll Highway collapse and subsequent feasibility works and deemed the old station unusable.[16] The stage is 16.6-kilometre (10.3 mi) long with 12 stations connecting Bukit Panjang and Rochor stations, including four interchange stations. Construction for Stage 2 began on 3 July 2009 with a groundbreaking ceremony at Beauty World station.[17][18][19]

In October 2014, it was announced that Stage 2's opening would be pushed back to the first quarter of 2016. It had to be delayed when main contractor Alpine Bau went bankrupt in mid-2013.[20] On 28 June 2015, Transport Minister Lui Tuck Yew announced that the delay was "completely resolved" by the authorities and Stage 2's opening date was reverted to 27 December 2015.[21]

Stage 3 of the Downtown line goes from Chinatown to Expo. The station locations and finalized route were unveiled on 20 August 2010.[22] Stage 3 of the Downtown line is 21-kilometre (13 mi) long and serve 16 stations.[1] It started operations on 21 October 2017, officially opened by the Transport Minister Khaw Boon Wan.[23]

To serve the line, the Gali Batu Depot was opened in December 2015 to stable 42 trains. It is situated at part of the former Kwong Hou Sua Teochew Cemetery off Woodlands Road.[24] Also in February that year, the Land Transport Authority announced that the capacity of the depot will be expanded to stable 81 trains by 2019.[25]

Final costs of building the line may reach an estimated about S$20.7 billion, up more than 70% from an initial estimation of S$12 billion.[26] In January 2013, plans for a southern extension which will run from Expo through the East Coast area, interchanging with the Thomson–East Coast line were announced for completion by 2025.[27] On 31 May 2017, LTA announced that Stage 3 of the Downtown line will commence operations on 21 October 2017.[28]

DTL3e was announced on 15 August 2014, in conjunction with the announcement of the Thomson–East Coast MRT line.[29] Two stations, Xilin MRT station and Sungei Bedok MRT station will be added to the Downtown Line, with Sungei Bedok as an interchange station with the Thomson–East Coast line. It will add an additional 2.2 km (1.4 mi) to the line with the extension.[29] Due in 2024, Stage 3e will join the current East West and future Thomson–East Coast lines that runs through Marine Parade.[30]

On 7 March 2019, Hume station was announced to be opened by 2025 to better serve Hillview residents. [8]

The Downtown Line extension will be extended via Stagmont Ring, and terminating at Sungei Kadut, to relieve the congestion by mid-2030s.

Notable incidents

A malfunction in the platform screen doors at Botanic Gardens MRT station resulted in trains bypassing the station and a seven-hour disruption on Wednesday, 3rd May 2017. Downtown line operator SBS Transit said that the doors malfunctioned at 5.45am due to a signalling-related fault, and could not open automatically. The fault was rectified at 12.54pm and the platform opened for passenger service, with the affected door remaining closed for repairs.[31]

Stations

Main article: List of Downtown MRT line station names

Template:MRT route/Downtown

Active route map information system of Downtown line
Station number Station name Image Interchange and notes Distance (km)

between stations

Total

Distance (km)

 DTx  NS6  Sungei Kadut Interchange with the North South line
Opening by mid-2030
 DT1  BP6  Bukit Panjang Interchange with the Bukit Panjang LRT 0.0 0.0
 DT2  Cashew 1.2 1.2
 DT3  Hillview 0.9 2.1
 DT4  Hume Opening by 2025
 DT5  Beauty World 2.6 4.7
 DT6  King Albert Park 1.2 5.9
 DT7  Sixth Avenue 1.6 7.5
 DT8  Tan Kah Kee 1.3 8.8
 DT9  CC19  Botanic Gardens Interchange with the Circle line 1.1 9.9
 DT10  TE11  Stevens Interchange with the Thomson–East Coast line (2021) 1.1 11
 DT11  NS21  Newton Interchange with the North South line 1.6 12.6
 DT12  NE7  Little India Interchange with the North East line 1.4 14
 DT13  Rochor 0.5 14.5
 DT14  EW12  Bugis Interchange with the East West line 0.8 15.3
 DT15  CC4  Promenade Interchange with the Circle line 0.9 16.2
 DT16  CE1  Bayfront Cross-platform interchange with the Circle line extension 1.3 18.4
 DT17  Downtown 0.9 19.3
 DT18  Telok Ayer 0.6 19.9
 DT19  NE4  Chinatown Interchange with the North East line 0.6 20.5
 DT20  Fort Canning 1.0 21.5
 DT21  Bencoolen 1.0 22.5
 DT22  Jalan Besar 0.9 23.4
 DT23  Bendemeer 1.3 24.7
 DT24  Geylang Bahru 1.4 26.1
 DT25  Mattar 1.5 27.6
 DT26  CC10  MacPherson Interchange with the Circle line 0.8 28.4
 DT27  Ubi 1.1 29.5
 DT28  Kaki Bukit 1.2 30.7
 DT29  Bedok North 1.1 31.8
 DT30  Bedok Reservoir 1.8 33.6
 DT31  Tampines West 1.7 35.3
 DT32  EW2  Tampines Interchange with the East West line 1.3 36.6
 DT33  Tampines East 1.4 38
 DT34  Upper Changi 2.6 40.6
 DT35  CG1  Expo Interchange with the East West line's Changi Airport branch line 0.9 41.5
Downtown line extension (under construction, to be ready by 2024)
 DT36  Xilin
 DT37  TE31  Sungei Bedok Interchange with the Thomson–East Coast line (2024) From Expo

2.2

44.1

Rolling stock

The Bombardier MOVIA C951 at Mattar MRT station

Currently, the Downtown line has one type of rolling stock, the Bombardier MOVIA C951 cars,[32] running in a three-car formation. They are stabled at Gali Batu Depot after it opened with Stage 2 of Downtown line on 27 December 2015. For the period between the operation of Downtown line stage 1 and Downtown line stage 2, trains were stabled at a maintenance facility that was built at Marina Bay as part of the Circle line project. Kim Chuan Depot housed the Operations Control Centre for the Downtown Line Stage 1 until Gali Batu Depot was ready to be used.[33]

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.[34] As of 28 February 2013, Bombardier had delivered five of the 11 trains for Downtown line stage 1.[35] 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.[36]

Testing on the Downtown line stage 2 began on 25 October 2015 and rolling stock that was delivered to Gali Batu Depot have commenced service on stage 1 starting on 21 October 2015. Kim Chuan Depot, together with the adjacent Tai Seng Facility Building operated on a minor capacity until the Downtown line stage 3 opened. A new depot, named the East Coast Integrated Depot will provide additional stabling capacity to the line in 2024.[37]

Testing on the Downtown line stage 3 began on 15 August 2017, after the late opening of Downtown line from 27 May 2017. [38] Most of the remaining rolling stock entered revenue service progressively from that date onwards. Testing on DTL Stage 3 was restricted from Fort Canning to Expo from 19 September 2017.

Train control

The Downtown line is equipped with Siemens (previously Invensys before Siemens acquisition) Trainguard Sirius Communications-based train control (CBTC) moving block signalling system with Automatic train control (ATC) under Automatic train operation (ATO) GoA 4 (UTO).[39][40] The subsystems consist of Automatic train protection (ATP) to govern train speed, Controlguide Rail 9000 Automatic Train Supervision (ATS) to track and schedule trains and Trackguard Westrace MK2 Computer-based interlocking (CBI) system that prevents incorrect signal and track points to be set.[41][42]

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.

Platform screen doors by Faiveley[43] provide safety for passengers, offering protection from arriving and departing trains.[44]

References

  1. ^ a b c d "Projects – Downtown Line – Stages". Land Transport Authority of Singapore. 17 December 2013. Archived from the original on 3 July 2014. Retrieved 23 June 2014. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  2. ^ a b "Company Announcement – Incorporation of a Wholly-Owned Subsidiary" (PDF).
  3. ^ "The Rail Report: 12 stations of Downtown Line 2 to Open on 27 December". Land Transport Authority. 6 August 2015.
  4. ^ "Downtown Line 2 to open ahead of schedule in December: Transport Minister Lui". Channel NewsAsia. 28 June 2015.
  5. ^ "Joint News Release by the Land Transport Authority (LTA) & SBS Transit – Train Services on Downtown Line to Start Later at 7.30am on Sundays to Facilitate Systems Integration Testing". Land Transport Authority. 26 April 2017.
  6. ^ "Factsheet: Downtown Line 3 to Open on 21 October 2017". Land Transport Authority. 31 May 2017.
  7. ^ "Downtown Line 3 Extension". Land Transport Authority. Retrieved 28 April 2017.
  8. ^ a b "滨海市区线谦道站料2025年启用". 早报 (in Chinese). 7 March 2019. Retrieved 7 March 2019. {{cite web}}: Cite has empty unknown parameter: |dead-url= (help)
  9. ^ "More Trains, More Capacity, More Often", Land Transport Authority
  10. ^ "Bombardier Announces Delivery of First Fully Automated Metro for Singapore Downtown Line". Mass Transit. Retrieved 10 February 2018.
  11. ^ "Downtown Line Overview".
  12. ^ LTA Appoints SBS Transit Limited to Operate Downtown Line under New Rail Financing Framework Archived 21 November 2011 at the Wayback Machine Land Transport Authority – 29 August 2011
  13. ^ "Downtown Line". Land Transport Authority. Archived from the original on 3 July 2014. Retrieved 22 December 2013. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  14. ^ "Downtown Line Stage 1 officially opened by PM Lee". The Straits Times. 21 December 2013. Retrieved 22 December 2013.
  15. ^ Land Transport Authority (24 January 2014). "Circle Line Linking All Lines". The Straits Times. p. 50.
  16. ^ "Govt approves S$12b MRT Downtown Line to be built by 2018". Archived from the original on 9 December 2012. {{cite web}}: Unknown parameter |dead-url= ignored (|url-status= suggested) (help)
  17. ^ "Groundwork begins for new MRT lines", Christopher Tan, The Straits Times, 13 March 2006
  18. ^ "LTA unveils locations of DTL stage 2 stations" Archived 13 August 2008 at the Wayback Machine, Christopher Tan, The Straits Times, 15 July 2008
  19. ^ "Work on MRT Downtown Line Phase 2 Starts", Tyler Thia, Channel NewsAsia, 3 July 2009
  20. ^ "Stage 2 of Downtown Line to open in first quarter 2016". TODAYonline. Retrieved 16 May 2016.
  21. ^ "Thumbs Up For Downtown Line's Earlier Opening". The Straits Times.
  22. ^ Downtown Line 3 station Locations Unveiled Archived 21 June 2011 at the Wayback Machine. Land Transport Authority, 20 August 2010
  23. ^ Tan, Christopher (20 October 2017). "Downtown Line 3 officially opens; Khaw Boon Wan announces review of fares incurred when switching between stations". The Straits Times. {{cite news}}: Cite has empty unknown parameter: |dead-url= (help)
  24. ^ "Downtown Line depot to be located off Woodlands Road", Margaret Perry, Channel NewsAsia, 26 February 2008
  25. ^ Land Transport Authority (17 February 2015). "Gali Batu Depot". Retrieved 1 March 2018.
  26. ^ "Downtown Line costs soar by more than 70%", Christopher Tan, The Straits Times, 30 October 2012
  27. ^ "Two New Rail Lines and Three New Extensions to Expand Rail Network by 2030". Land Transport Authority. 17 January 2013. Archived from the original on 6 July 2014. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  28. ^ "Downtown Line 3". Elizabeth Neo. No. Downtown Line 3 to open on 21 Oct. Channel NewsAsia. 1 June 2017. Retrieved 31 May 2017.
  29. ^ a b "Thomson–East Coast Line, connecting North and East, ready by 2024" Archived 16 August 2014 at the Wayback Machine, Saifulbahri Ismail, Channel NewsAsia, 15 August 2014
  30. ^ "Downtown Line 3 Extension". Land Transport Authority. 15 August 2014.
  31. ^ "Platform doors at Botanic Gardens MRT station malfunction, causing 7-hour disruption". Channel NewsAsia.
  32. ^ LTA Awards 6 Downtown Line Contracts Totalling $1.13 Billion Archived 27 May 2011 at the Wayback Machine
  33. ^ Contract 901QP: Terms of Reference, Land Transport Authority, 9 November 2007 (tender document from www.gebiz.gov.sg)
  34. ^ "First Downtown Line train lands in Singapore". Land Transport Authority. Retrieved 16 November 2013.
  35. ^ "Shorter Waiting Time With 15 More Trains For Downtown Line". Land Transport Authority. 28 March 2013. Archived from the original on 11 April 2013. Retrieved 28 March 2013. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  36. ^ "Land Transport Masterplan: Downtown Line Stage 1 to open on Dec 22". The Straits Times. Retrieved 16 November 2013.
  37. ^ "4-in-1 depot save taxpayers 2bn". 23 February 2018. Retrieved 3 March 2017.
  38. ^ Elizabeth Neo (15 November 2017). "Doors open on Downtown line 3 for preview ahead of Oct 21 launch". Retrieved 3 March 2018.
  39. ^ "Invensys Rail secures signalling contract for Singapore's new Downtown Line" (PDF). Retrieved 21 August 2016.[permanent dead link]
  40. ^ "Press Releases > Siemens-equipped driverless underground metro line in Singapore starts operations for Downtown Line 1 > Siemens-equipped driverless underground metro line in Singapore starts operations for Downtown Line 1". Retrieved 21 August 2016.
  41. ^ "como special issue" (PDF). {{cite web}}: Cite has empty unknown parameter: |dead-url= (help)
  42. ^ "CBTC testing starts on Singapore Downtown Line". {{cite web}}: Cite has empty unknown parameter: |dead-url= (help)
  43. ^ "LTA Awards 6 Downtown Line Contracts Totalling $1.13 Billion". 7 November 2008.
  44. ^ "The Challenges of Delivering the Downtown Line Signalling System". {{cite web}}: Cite has empty unknown parameter: |dead-url= (help)

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