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Sukhumvit Line

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BTS Sukhumvit line
Overview
Native nameสายสุขุมวิท
LocaleBangkok, Samut Prakan Province, and Pathum Thani Province
Termini
Stations23
Service
TypeHeavy Rail
SystemBTS Skytrain
Depot(s)Mo Chit
History
Opened5 December 1999
Technical
Line length23.10 km (14.35 mi)
Number of tracks2
Track gauge1,435 mm (4 ft 8+1⁄2 in)
Electrification750V DC Third rail
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 Elevated Train in Commemoration of HM the King's 6th Cycle Birthday First line (Sukhumvit) or 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 Mo Chit station in Chatuchak District, and eastwards along Rama I, Phloen Chit and Sukhumvit Roads, through Bang Na District to Samrong Station in Samut Prakan.

When the BTS first opened in December 1999 the line consisted of seventeen stations from Mo Chit to On Nut, currently there are 23 stations in operation.

The line is represented on the official BTS map in light green.

Stations

A planned station at N6 has never been built.

Code Station Name
English 		Station Name
Thai 		Transfers Location
N8 Mo Chit หมอชิต  MRT  Bangkok Chatuchak
N7 Saphan Khwai สะพานควาย Phaya Thai
N5 Ari อารีย์
N4 Sanam Pao สนามเป้า
N3 Victory Monument อนุสาวรีย์ชัยสมรภูมิ Ratchathewi
N2 Phaya Thai พญาไท  ARL  ( SRT  planned)
N1 Ratchathewi ราชเทวี
CEN Siam สยาม  BTS  Pathum Wan
E1 Chit Lom ชิดลม
E2 Phloen Chit เพลินจิต ( MRL  proposed)
E3 Nana นานา Watthana/
Khlong Toei
E4 Asok อโศก  MRT 
E5 Phrom Phong พร้อมพงษ์
E6 Thong Lo ทองหล่อ
E7 Ekkamai เอกมัย
E8 Phra Khanong พระโขนง
E9 On Nut อ่อนนุช Watthana/
Khlong Toei/
Phra Khanong
E10 Bang Chak บางจาก Phra Khanong
E11 Punnawithi ปุณณวิถี
E12 Udom Suk อุดมสุข (Bang Na–Suvarnabhumi Line planned) Bang Na
E13 Bang Na บางนา
E14 Bearing แบริ่ง
E15 Samrong สำโรง ( MRT  planned) Samut Prakan Mueang Samut Prakan

Extensions and current construction

Station sign at Thong Lo BTS Station shows the future expansion beyond Samrong, scheduled to open in 2018.

East

1st extension, in operation - Construction started in August 2006 on a four billion baht, 5.25 km extension from On Nut (E9) to Bearing.[1] The extension was funded by the BMA.[2] The original scheduled opening date was mid-2009. However, a delay in tendering of the contract for the electrical and signals resulted in a two-year delay. Deputy governor Teerachon Manomaiphibul commented: "The senior City Hall official responsible for making the purchase has apparently stalled the scheme over fears of being investigated if something went wrong with the purchase. The official in question is due to retire and does not want to take risks despite being told the scheme is strictly in line with regulations".[3] 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, currently under construction with one open station - Construction started in April 2012 on a 12.6 km, nine station extension from Bearing station to Kheha station. The extension is 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.[4] As of 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. Trackwork was 98% complete by November 2016. The total cost of the extension was estimated at 21.4 billion baht.[5]

In January 2017, it was announced that the opening of the extension could be further delayed to 2018-9 due to budgetary concerns and ongoing disputes between the MRTA and BMA. [6] However, the first 1.2km section of the extension to Samrong station (E15) opened in April 2017.[7] However some services from Mo Chit terminate at Bearing and some at Samrong. Passengers for Samrong on trains terminating at Bearing are recommended to change at Bang Na Station to avoid changing platforms, as the termination platform for Bearing services at Bearing is platform 2 bound for Mo Chit.

As of 31 December 2017, civil works construction had been 100% completed according to the MRTA with signalling and electrical installation ongoing.[8] As of the end of April 2018, the MRTA stated that the installation of signalling and electrical systems was at 60%. [9]

The full extension is currently due to open in December 2018. [10]

Code Station Name
English 		Station Name
Thai 		Transfers Location
E15 Samrong สำโรง  MRT  (2019) Samut Prakan Mueang Samut Prakan
E16 Pu Chao ปู่เจ้า
E17 Chang Erawan ช้างเอราวัณ
E18 Royal Thai Naval Academy โรงเรียนนายเรือ
E19 Pak Nam ปากน้ำ
E20 Srinagarindra ศรีนครินทร์
E21 Phraek Sa แพรกษา
E22 Sai Luat สายลวด
E23 Kheha เคหะฯ

North

Map of North Extension at Thong Lo station. Station N9 will open in 2019 and stations N10 to N24 will open in 2020.

1st and 2nd extension, currently under construction

  • 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)

A 11.4 km, 11 station northern extension from Mo Chit station to Saphan Mai in Don Mueang District has 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 has been continually delayed. A further 16.5 km, nine station extension from Saphan Mai to Lam Lukka was also planned once the extension to Saphan Mai had been completed.

After many delays, in mid-2013 it was decided to tender extension (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 [11] with an April deadline before being delayed until late May 2014 due to concerns from bidders.[12] 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 the tender which will proceed before the end of 2014. In mid-August, the MRTA announced that the new tender deadline will be 30 September 2014.[13] Five bidders qualified and successful bids were due to be announced by December 2014.[14] The tender specifies a construction period of 1,350 days.

On 3 April 2015, MRTA signed four contracts for this extension:[15]

  • 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 will need be demolished, which commenced on 12 September 2015.[16]

As of 31 December 2017, the progress of civil works construction was at 53.31% according to the MRTA. [17] As of the end of April 2018, the MRTA stated that civil works progress had advanced to 63.27%. [18] As of 30 September, overall construction had progressed to 78.79% [19]


The first section to N9 station is planned to open in the first half of 2019, with the full extension currently due to open by July 2020.

Code Station Name
English 		Station Name
Thai 		Transfers Location
N24 Khu Khot คูคต Pathum Thani Lam Luk Ka
N23 Yaek Kho Po Oo แยก คปอ. Bangkok Don Mueang
N22 Air Force Museum พิพิธภัณฑ์กองทัพอากาศ Sai Mai
N21 Bhumibol Adulyadej Hospital โรงพยาบาลภูมิพลอดุลยเดช
N20 Saphan Mai สะพานใหม่ Bang Khen
N19 Sai Yut สายหยุด
N18 Phahon Yothin 59 พหลโยธิน 59
N17 Wat Phra Si Mahathat วัดพระศรีมหาธาตุ  MRT  (2022)
N16 11th Infantry Regiment กรมทหารราบที่ 11
N15 Bang Bua บางบัว Chatuchak
N14 Royal Forest Department กรมป่าไม้
N13 Kasetsart University มหาวิทยาลัยเกษตรศาสตร์  MRT  (proposed)
N12 Sena Nikhom เสนานิคม
N11 Ratcha Yothin รัชโยธิน
N10 Phahon Yothin 24 พหลโยธิน 24
N9 Lat Phrao Intersection ห้าแยกลาดพร้าว  MRT 

Future extension plans

East:

  • A further 7 km, four station extension from Kheha Samut Prakan station to Bang Pu station is planned.
Code Station Name
English 		Station Name
Thai 		Transfers Location
E24 Sawangkhaniwat สวางคนิวาส
E25 Mueang Boran เมืองโบราณ
E26 Sichanpradit ศรีจันทร์ประดิษฐ์
E27 Bang Pu บางปู

North:

  • A further 9 km, four station extension east along Lam Lukka Road from Khu Khot station to Eastern Outer Ring station is planned to be constructed by 2029.
Code Station Name
English 		Station Name
Thai 		Transfers Location
N28 Eastern Outer Ring วงแหวนรอบนอกตะวันออก Pathum Thani Lam Luk Ka
N27 Khlong Ha คลองห้า
N26 Khlong Si คลองสี่
N25 Khlong Sam คลองสาม

See also

References

  1. ^ Groundbreaking starts on new BTS extension, Daily News, 15 August 2006
  2. ^ BTS extension budget cut, Bangkok Post, 15 December 2006
  3. ^ Skytrain link tests delayed, Bangkok Post, 19 September 2009
  4. ^ "Ch Karnchang gets Phase 2 of Bearing-Samut Prakan route" The Nation, 13 April 2013
  5. ^ "BMA to postpone test run of Bearing-Samrong skytrain". Bangkok Post. Retrieved 2016-11-22.
  6. ^ Reporter, Sasiwan Mokkhasen, Staff (2017-01-31). "Green Line Going Nowhere for at Least Two Years". Khaosod English. Retrieved 2017-02-25.{{cite news}}: CS1 maint: multiple names: authors list (link)
  7. ^ Reporter, Asaree Thaitrakulpanich, Staff (2017-02-24). "First Station of Stalled BTS Green Line to Open April 1". Khaosod English. Retrieved 2017-02-25.{{cite news}}: CS1 maint: multiple names: authors list (link)
  8. ^ https://www.mrta.co.th/th/news/information/ความก-าวหน-าการก-อสร-างรถไฟฟ-า-ณ-31-ธ-นวาคม-2560/. MRTA Press, 16 January 2018
  9. ^ https://www.mrta.co.th/th/news/information/ความก-าวหน-าการก-อสร-างรถไฟฟ-า-ณ-30-เมษายน-2561/. MRTA Press, 30 April 2018
  10. ^ "MRTA pushes to fast-track launch of South Green Line". Bangkok Post. 1 December 2017.
  11. ^ http://www.mrta.co.th/sysRegister/register131217/proc17122556.pdf
  12. ^ http://www.prachachat.net/news_detail.php?newsid=1401076541 "รฟม.ปรับทีโออาร์หมอชิต-คูคต กลางปี59 เปิดให้บริการสายสีม่วง" Prachachat News, 26 May 2014
  13. ^ http://www.prachachat.net/news_detail.php?newsid=1408439328
  14. ^ http://www.matichon.co.th/news_detail.php?newsid=1412581507
  15. ^ http://www.ryt9.com/s/iq03/2130477
  16. ^ http://www.manager.co.th/iBizchannel/ViewNews.aspx?NewsID=9580000099688
  17. ^ https://www.mrta.co.th/th/news/information/ความก-าวหน-าการก-อสร-างรถไฟฟ-า-ณ-31-ธ-นวาคม-2560/. MRTA Press, 16 January 2018
  18. ^ https://www.mrta.co.th/th/news/information/ความก-าวหน-าการก-อสร-างรถไฟฟ-า-ณ-30-เมษายน-2561/. MRTA Press, 30 April 2018
  19. ^ https://www.facebook.com/MRTA.PR/photos/a.1433440196872710/2109998672550189/. MRTA Press, 12 October 2018
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