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Sukhumvit Line

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BTS Sukhumvit Line
สายสุขุมวิท
Two Siemens Modular Metro EMU-A1 BTS Skytrains heading to both directions.
Overview
Native nameรถไฟฟ้าบีทีเอส สายสุขุมวิท
รถไฟฟ้าเฉลิมพระเกียรติ 6 รอบพระชนมพรรษา สาย 1 (สุขุมวิท)
รถไฟฟ้าสายสีเขียวอ่อน
OwnerBangkok Metropolitan Administration (BMA)
LocaleBangkok, Samut Prakan, and Pathum Thani
Termini
Stations47 stations
1 provisional station
Color on map    Light Green
Service
TypeRapid transit
SystemBTS Skytrain
Operator(s)Bangkok Mass Transit System
Public Company Limited
Depot(s)Mo Chit Depot (shared with  BTS )
Khu Khot Depot
Kheha Depot
Rolling stockSiemens Modular Metro
EMU-A1: 35 trains

Siemens Bozankaya
EMU-A2: 22 trains

CNR Changchun
EMU-B1: 12 trains

CNR Changchun
EMU-B2: 5 trains

CNR Changchun
EMU-B3: 24 trains
Daily ridership1,758,544 ( BTS  and  BTS )
History
Opened5 December 1999
Technical
Line length51.17 km (31.80 mi)
CharacterFully elevated
Track gauge1,435 mm (4 ft 8+1⁄2 in) standard gauge
Electrification750 V DC third rail
Operating speed80 km/h (50 mph)
SignallingFormer: Siemens Trainguard LZB700M fixed block ATC under ATO GoA 2 (STO)
Current: Bombardier CITYFLO 450 moving block CBTC ATC under ATO GoA 2 (STO), with subsystems of ATP, ATS and CBI[1][2]
Route map

Legend
 Planned extension to Outer Ring Road-Lam Luk Ka
Khu Khot
Khu Khot depot
Yaek Kor Por Aor
Royal Thai Air Force Museum
Bhumibol Adulyadej Hospital
Saphan Mai
Sai Yud
Phahon Yothin 59
Pink Line
 Wat Phra Sri Mahathat
 MRT 
 11th Infantry Regiment
Bang Bua
Royal Forest Department
Kasetsart University
Sena Nikhom
Ratchayothin
Phahon Yothin 24
Ha Yaek Lat Phrao
 MRT 
Blue Line to Lak Song
Don Mueang Tollway
 Mo Chit depot
Mo Chit
 MRT 
 Saphan Khwai
Sena Ruam
(future)
 Ari
Sanam Pao
Si Rat Expressway
 Victory Monument
Phaya Thai
 ARL 
Airport Rail Link to Suvarnabhumi
SRT Eastern Line
to Bangkok │ to Chachoengsao
 Ratchathewi
Silom Line to National Stadium
 Siam
 BTS 
Silom Line to Bang Wa
 Chit Lom
Phloen Chit
Chaloem Maha Nakhon Expressway
 Nana
Asok
Blue Line to Tha Phra (via Bang Sue)
 Phrom Phong
Thong Lo
Ekkamai
Phra Khanong
Chalong Rat Expressway
 On Nut
Bang Chak
Punnawithi
Udom Suk
Chaloem Maha Nakhon Expressway
Third stage Expressway System
 Bang Na
Bearing
Samrong
 MRT 
 Pu Chao
Kanchanapisek Expressway
 Chang Erawan
Royal Thai Naval Academy
Pak Nam
Srinagarindra
Phraek Sa
Sai Luat
Kheha
Samut Prakan depot
Planned extension to Bang Pu
This diagram:

The Sukhumvit Line (Template:Lang-th) is an elevated metro rail line of the BTS Skytrain in Bangkok, Thailand. From the central Siam Station, where it connects with the Silom Line, the line runs both northwards along Phaya Thai and Phahon Yothin Roads to Khu Khot in Lam Luk Ka District in Pathum Thani, and eastwards along Rama I, Phloen Chit and Sukhumvit Roads, through Bang Na District to Kheha Station in Samut Prakan. BTS daily ridership (2019) is 740,000 passengers per day.[3]

History

The first part of the line opened in December 1999 and consisted of seventeen stations from Mo Chit to On Nut. Currently, there are 47 stations in operation for 54.25 km (33.71 mi)[4] from origin to destination. Its formal name is The Elevated Train in Commemoration of HM the King's 6th Cycle Birthday 1st line (Template:Lang-th).[5]

Stations

Further information: List of rapid transit stations in Bangkok

Station N6 (Sena Ruam) has been planned since the construction of the line but has not been built.

Code Station Name Opened Platform

Type

Transfers/Notes Location
English Thai District Province
Khu Khot คูคต 16 December 2020 Side Lam Luk Ka Pathum Thani
Yaek Kor Por Aor
(RTGS: Yaek Kho Po O) 		แยกคปอ. Side Don Mueang Bangkok
Royal Thai Air Force Museum
(RTGS: Phiphithaphan Kong Thap Akat) 		พิพิธภัณฑ์กองทัพอากาศ Side
Bhumibol Adulyadej Hospital
(RTGS: Rong Phayaban Phumiphon Adunyadet) 		โรงพยาบาลภูมิพล-อดุลยเดช Side
Saphan Mai สะพานใหม่ Side Bang Khen
Sai Yud
(RTGS: Sai Yut) 		สายหยุด Side
Phahon Yothin 59
(RTGS: Phahon Yothin Ha Sip Kao) 		พหลโยธิน 59 Side
Wat Phra Sri Mahathat
(RTGS: Wat Phra Si Mahathat) 		วัดพระศรีมหาธาตุ 5 June 2020 Island Interchange station with  MRT 
11th Infantry Regiment
(RTGS: Krom Thahan Rap Thi Sip Et) 		กรมทหารราบที่ 11 Side
Bang Bua บางบัว Side Chatuchak
Royal Forest Department
(RTGS: Krom Pa Mai) 		กรมป่าไม้ Side
Kasetsart University
(RTGS: Maha Witthayalai Kasetsat) 		มหาวิทยาลัยเกษตรศาสตร์ 4 December 2019 Side Proposed connecting station to  MRT 
Sena Nikhom เสนานิคม Side
Ratchayothin รัชโยธิน Side
Phahon Yothin 24
(RTGS: Phahonyothin Yisip Si) 		พหลโยธิน 24 Side
Ha Yaek Lat Phrao ห้าแยกลาดพร้าว 9 August 2019 Island Connecting station to Phahon Yothin for  MRT 
Mo Chit หมอชิต 5 December 1999 Side Connecting station to Chatuchak Park for  MRT 
Saphan Khwai สะพานควาย Side Phaya Thai
Sena Ruam เสนาร่วม[6] N/A Side Provisional station
Ari อารีย์ 5 December 1999 Side
Sanam Pao สนามเป้า Side
Victory Monument
(RTGS: Anusawari Chai Samoraphum) 		อนุสาวรีย์ชัยสมรภูมิ Side Ratchathewi
Phaya Thai พญาไท Side Connecting station to  ARL 
Ratchathewi ราชเทวี Side
Siam
(RTGS: Sayam) 		สยาม Stacked Island Cross-platform interchange with  BTS  Pathum Wan
Chit Lom ชิดลม Side
Phloen Chit เพลินจิต Side
Nana นานา Side Khlong Toei and
Watthana
Asok อโศก Side Connecting station to Sukhumvit for  MRT 
Phrom Phong พร้อมพงษ์ Side
Thong Lo ทองหล่อ Side
Ekkamai เอกมัย Side Proposed connecting station to  MRL  (north section)
Phra Khanong พระโขนง Side Proposed connecting station to  MRL  (south section)
On Nut อ่อนนุช Side
Bang Chak บางจาก 12 August 2011 Side Phra Khanong
Punnawithi ปุณณวิถี Side
Udom Suk อุดมสุข Side Bang Na
Bang Na บางนา Side Proposed connecting station to Bang Na-Suvarnabhumi LRT.
Bearing
(RTGS: Baering) 		แบริ่ง Side
Samrong สำโรง 3 April 2017 Island Connecting station to  MRT  Mueang Samut Prakan Samut Prakan
Pu Chao ปู่เจ้า 6 December 2018 Side
Chang Erawan ช้างเอราวัณ Side
Royal Thai Naval Academy
(RTGS: Rongrian Nairuea) 		โรงเรียนนายเรือ Side
Pak Nam ปากน้ำ Side
Srinagarindra
(RTGS: Si Nakharin) 		ศรีนครินทร์ Side
Phraek Sa
(RTGS: Phraekkasa) 		แพรกษา Side
Sai Luat สายลวด Side
Kheha เคหะฯ Side

Operation

BTS operates services throughout the line from Khu Khot to Kheha at all times. At peak hours between 07.00-09.00 and 16.00-20.00, some "short-run" services run terminate at Mo Chit and Kasetsart University northbound, and at Samrong, eastbound. Trains run generally at three to six-minute intervals. The last eastbound trains from Khu Khot terminate at Kheha, Samrong or Ha Yaek Lat Phrao. The last northbound trains from Kheha terminate at Khu Khot, Mo Chit, or Samrong.

A few off-peak eastbound trains run a through service on the Silom Line to Bang Wa, in order to increase the line capacity at peak hours. At night, these trains will run back northbound and head to depot.[7] Some late northbound trains on the Silom Line switch to the Sukhumvit Line at Siam to reach the depot at Mo Chit.

Rolling stock

Siemens Modular Metro

EMU-A1: 35 trains

Siemens Modular Metro EMU-A1
EMU-A1 Interior
Siemens Modular Metro EMU-A1

Siemens Bozankaya

Siemens Bozankaya EMU-A2
EMU-A2 Interior
Siemens Bozankaya EMU-A2

EMU-A2: 22 trains

CNR Changchun

EMU-B1: 12 trains

CNR Changchun EMU-B1
BTS EMU-B1 Interior

CNR Changchun

EMU-B2: 5 trains

CNR Changchun EMU-B2

CRRC Changchun

EMU-B3: 24 trains

CRRC Changchun EMU-B3
BTS EMU-B3 Interior


Extensions and current construction

Station sign at Thong Lo BTS station shows the extension beyond Samrong which opened in 2018.

Summary of BTS Sukhumvit extensions

  • 12 August 2011: On Nut (E09) – Bearing (E14)
  • 3 April 2017: Bearing (E14) – Samrong (E15)
  • 6 December 2018: Samrong (E15) – Kheha (E23)
  • 9 August 2019: Mo Chit (N8) – Ha Yaek Lat Phrao (N9)
  • 4 December 2019: Ha Yaek Lat Phrao (N9) – Kasetsart University (N13)
  • 5 June 2020: Kasetsart University (N13) – Wat Phra Sri Mahathat (N17)
  • 16 December 2020 Wat Phra Sri Mahathat (N17) – Khu Khot (N24).

East

1st extension to Bearing Construction started in August 2006 on a four billion baht, 5.25 km (3.26 mi) extension from On Nut (E9) to Bearing.[8] The extension was funded by the BMA.[9] The original scheduled opening date was mid-2009. However, a delay in tendering of the contract for the electrical and signalling works resulted in a two-year delay.

The extension did not open until over two years later, on 12 August 2011. The delay in opening prompted the BMA to offer free travel for this extension until the end of 2011 as compensation. An additional flat fee is charged additionally to the distance-based fare of the rest of the BTS network.

2nd extension to Kheha Construction started in April 2012 on a 12.6 km (7.8 mi), nine station extension from Bearing station to Kheha station. The extension was funded by the MRTA as it is outside BMA city limits, Bangkok Province. Construction was contracted to take 1,350 days and the extension was originally scheduled to open by early 2017. In April 2013, the MRTA awarded Ch Karnchang the contract for track laying and electrical systems.[10]

In June 2014, civil works were stated to be 28.3 percent complete. In August 2016, the BMA agreed to take over the operation of the extension from MRTA. Delays over the agreement of how much the BMA should pay MRTA caused a delay in the commencement of test runs on the extension. Track works were 98% completed by November 2016. The total cost of the extension was estimated at 21.4 billion baht.[11] In January 2017, it was announced that the opening of the extension could be further delayed to 2018-2019 due to budgetary concerns and ongoing disputes between the MRTA and BMA.[12]

The first 1.2 km (0.75 mi) section of the extension to Samrong station (E15) opened on 3 April 2017.[13] The full extension to Kheha opened on 6 December 2018.[14]

North

Map of North Extension at Thong Lo station. Station N9 was opened on 9 August 2019 and stations N10 to N24 opened in 2020.

1st and 2nd extension

  • 1) Mo Chit station to Saphan Mai: 11.4 km, 12 stations (N9–N20)
  • 2) Saphan Mai to Khu Khot: 7.5 km, four stations (N21-N24)

An 11.4 km, 11 station northern extension from Mo Chit station to Saphan Mai in Don Mueang District had been planned since the Sukhumvit Line opened. Originally, this extension was scheduled to be completed by 2008. However, due to a combination of changes in government, a prolonged environmental study, and problems with locating a suitable train depot the extension was continually delayed. A further 16.5 km (10.3 mi), nine station extension from Saphan Mai to Khu Khot was also planned once the extension to Saphan Mai had been completed.

After multiple delays, in mid-2013 a decision was made to tender extensions (1) and (2) at the same time, by the end of 2013. However, the dissolution of parliament in November 2013 delayed this yet again. A tender was finally released in January 2014[15] with an April deadline before being delayed until late May 2014 due to concerns from bidders.[16] A military coup in late-May 2014 suspended the bidding process whilst the military administration reviewed all major projects. In late June, the military administration affirmed that the tender would proceed before the end of 2014. In August 2014, the MRTA announced that the new tender deadline was 30 September 2014.[17] Five bidders qualified and the successful bids were announced in December 2014.[18] The tender specified a construction period of 1,350 days.

On 3 April 2015, MRTA signed four contracts for this extension:[19]

  • Contract 1: Civil works of 11.4 km from Mo Chit to Saphan Mai, will be constructed by Italian-Thai Development (15,269 million baht)
  • Contract 2: Civil works of 7.5 km from Saphan Mai to Khu Khot, will be constructed by UN-SH-CH joint venture (6,657 million baht)
  • Contract 3: Civil works of Depot and Park and Ride building, will be constructed by STEC-AS joint venture (4,019 million baht)
  • Contract 4: Tracklaying and system design, will be constructed by STEC-AS joint venture (2,841 million baht)

The MRTA, contactors and Thai Traffic Police met on 2 September 2015 and confirmed construction would begin on 8 September 2015. A flyover at Kasetsart was demolished, which commenced on 12 September 2015.[20]

At 31 December 2017, the progress of civil works construction was at 53.31% according to the MRTA.[21] As of the end of April 2018, the MRTA stated that civil works progress had advanced to 63.27%.[22] As of 30 September, overall construction had progressed to 78.79%.[23] By the end of March 2019, civil construction had nearly been completed having progressed to 99.42%.[24]

Testing of the final 9.8 km, 7 station section from Wat Phra Sri Mahathat (N17) to Khu Khot (N24) began on 5 October.[25] The final section was officially opened on 16 December 2020 by the Prime Minister.[26]

Opening dates

  1. The first section to Ha Yaek Lat Phrao station (N9) opened on 9 August 2019.
  2. The next 4 stations from a Yaek Lat Phrao station (N9) to Kasetsart University (N13) opened on 4 December 2019.
  3. The next 4 stations from Kasetsart University (N13) to Wat Phra Sri Mahathat (N17) opened on 5 June 2020.
  4. The remaining section of 9.8 km and 7 stations from Wat Phra Sri Mahathat (N17) to Khu Khot (N24) opened on 16 December 2020.

Future extension plans

East:

  • A further 7 km, four station extension from Kheha station to Bang Pu station is planned.
Code Station Name Transfers Location
English Thai District Province
Sawangkhaniwat สวางคนิวาส Mueang Samut Prakan Samut Prakan
Mueang Boran เมืองโบราณ
Si Chan Pradit ศรีจันทร์ประดิษฐ์
Bang Pu บางปู

North:

  • A further 9 km, four station extension east along Lam Lukka Road from Khu Khot station to Wongwaen-Lam Luk Ka station is planned.
Code Station Name Transfers Location
English Thai District Province
Outer Ring Road-Lam Luk Ka วงแหวนลำลูกกา Lam Luk Ka Pathum Thani
Khlong Ha คลองห้า
Khlong Si คลองสี่
Khlong Sam คลองสาม

See also

References

  1. ^ "Mass transit signalling". Bombardier Transportation. Archived from the original on 2022-01-01. Retrieved 2020-06-16.
  2. ^ "Bombardier Projects in Mass-transit signalling" (PDF). Archived from the original (PDF) on 2021-11-23.
  3. ^ Limviphuwat, Phuwit (18 May 2019). "Mass Transit not keeping up". The Nation. Retrieved 18 May 2019.
  4. ^ "Structure and Stations : Routes". www.bts.co.th. Retrieved 2023-07-23.
  5. ^ "รถไฟฟ้าบีทีเอส (BTS Skytrain)".
  6. ^ Charuvastra, Teeranai; Chief, News (2019-04-10). "Construction of Sathorn BTS 'Ghost Station' Underway". Khaosod English. Retrieved 2020-03-25. {{cite news}}: |first2= has generic name (help)
  7. ^ "เวลาการให้บริการ". BTS Skytrain.
  8. ^ Groundbreaking starts on new BTS extension, Daily News, 15 August 2006
  9. ^ BTS extension budget cut, Bangkok Post, 15 December 2006
  10. ^ "Ch Karnchang gets Phase 2 of Bearing-Samut Prakan route" The Nation, 13 April 2013
  11. ^ "BMA to postpone test run of Bearing-Samrong skytrain". Bangkok Post. Retrieved 2016-11-22.
  12. ^ Sasiwan Mokkhasen (2017-01-31). "Green Line Going Nowhere for at Least Two Years". Khaosod English. Retrieved 2017-02-25.
  13. ^ Asaree Thaitrakulpanich (2017-02-24). "First Station of Stalled BTS Green Line to Open April 1". Khaosod English. Retrieved 2017-02-25.
  14. ^ "MRTA pushes to fast-track launch of South Green Line". Bangkok Post. 1 December 2017.
  15. ^ http://www.mrta.co.th/sysRegister/register131217/proc17122556.pdf [bare URL PDF]
  16. ^ http://www.prachachat.net/news_detail.php?newsid=1401076541 "รฟม.ปรับทีโออาร์หมอชิต-คูคต กลางปี59 เปิดให้บริการสายสีม่วง" Prachachat News, 26 May 2014
  17. ^ "ข่าวรอบวัน". ประชาชาติธุรกิจ.
  18. ^ "5กลุ่มบริษัทผ่านคุณสมบัติสร้างรถไฟสีเขียว คาดหาผู้รับเหมาได้ไม่เกินต้นปี58 : มติชนออนไลน์". Archived from the original on 2016-03-04. Retrieved 2014-10-08.
  19. ^ "รฟม.เซ็นสัญญารถไฟฟ้าสายสีเขียวเหนือ เริ่มสร้างมิ.ย 58 คาดเปิดใช้ต้นปี".
  20. ^ "ผู้จัดการออนไลน์ รวดเร็ว สด ทุกเหตุการณ์".
  21. ^ https://www.mrta.co.th/th/news/information/ความก-าวหน-าการก-อสร-างรถไฟฟ-า-ณ-31-ธ-นวาคม-2560/. MRTA Press, 16 January 2018
  22. ^ https://www.mrta.co.th/th/news/information/ความก-าวหน-าการก-อสร-างรถไฟฟ-า-ณ-30-เมษายน-2561/. MRTA Press, 30 April 2018
  23. ^ "การรถไฟฟ้าขนส่งมวลชนแห่งประเทศไทย on Facebook". Facebook. Archived from the original on 2022-04-30.MRTA Press[user-generated source]
  24. ^ https://www.mrta.co.th/th/news/information/ความก-าวหน-าการก-อสร-างรถไฟฟ-า-ณ-30-เมษายน-2561/. MRTA Press, 30 April 2018
  25. ^ "BTS tests Green Line trains at 7 new stations before public opening at year-end". The Nation. 7 October 2020. Archived from the original on 19 August 2013. Retrieved 17 February 2022.
  26. ^ "นับถอยหลัง 4 ธ.ค. 63 รถไฟฟ้า BTS สายสีเขียว เปิดทุกสถานี เชื่อม 3 จังหวัด". TNN Thailand. 17 November 2020.
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