Sukhumvit Line

BTS Sukhumvit Line สายสุขุมวิท
EMU-A2 from Kasetsart University station arriving at Sena Nikom station
Overview
Owner	Bangkok Metropolitan Administration
Locale	Bangkok, Samut Prakan, and Pathum Thani
Termini	Khu Khot Kheha
Stations	Total : 57 stations 47 (operational) 9 (planned) 1 (provisional)
Color on map	Light Green
Service
Type	Rapid transit
System	BTS Skytrain
Operator(s)	Bangkok Mass Transit System Public Company Limited
Depot(s)	Mo Chit Depot (shared with  BTS ) Khu Khot Depot Kheha Depot
Rolling stock	Siemens Modular Metro EMU-A1: 35 four-car trains Siemens Bozankaya EMU-A2: 22 four-car trains CNR Changchun Railway Vehicles EMU-B1: 12 four-car trains CNR Changchun Railway Vehicles EMU-B2: 5 four-car trains CRRC Changchun Railway Vehicles EMU-B3: 24 four-car trains
Daily ridership	926,294 ( BTS  and  BTS ) 30 August 2024[1]
History
Opened	5 December 1999; 24 years ago (1999-12-05)
Last extension	16 December 2020; 3 years ago (2020-12-16)
Technical
Line length	Total :69.07 km (42.92 mi) 51.17 km (31.80 mi) (operational) 17.9 km (11.1 mi) (planned)
Character	Fully elevated
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge
Electrification	750 V DC third rail
Operating speed	80 km/h (50 mph)
Signalling	Former: 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[2][3]
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: view talk edit

The Sukhumvit Line (Thai: รถไฟฟ้า สายสุขุมวิท) 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.^[4]