Silom Line

BTS Silom Line สายสีลม
EMU-B3 at Talat Phlu Station
Overview
Owner	Bangkok Metropolitan Administration
Locale	Bangkok
Termini	National Stadium Bang Wa
Stations	14 (operational) 14 (planned)
Color on map	Dark 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 (shared with  BTS ) Bang Wa 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	8 February 2021; 3 years ago (2021-02-08)
Technical
Line length	13.09 km (8.13 mi)
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 National Stadium  BTS  ( Khu Khot – Kheha ) Siam Ratchadamri  MRT : Si Lom ( Lak Song – Tha Phra (via Bang Sue) ) Sala Daeng Chong Nonsi Saint Louis Surasak Si Rat Expressway Saphan Taksin Chao Phraya River Krung Thonburi  BTS   SRT  (planned): (Hua Lamphong )  MRT  (planned): ( Khlong Bang Phai – Rat Burana ) Wongwian Yai Pho Nimit Talat Phlu SRT Maeklong Railway ( SRT  planned): (Maha Chai ) Wutthakat Bang Wa  MRT : ( Lak Song – Tha Phra (via Bang Sue) ) Light Depot

The Elevated Train in Commemoration of HM the King's 6th Cycle Birthday 2nd line, also known as Silom Line, is one of the rapid transit lines of the BTS Skytrain System in Bangkok, Thailand.^[4]The line runs eastward from National Stadium Station in Pathum Wan District over Rama I Road and interchanges with the Sukhumvit Line at Siam station, then turns southward, following Ratchadamri, Si Lom, Naradhiwas Rajanagarindra and Sathon Roads to Taksin Bridge where it crosses the Chao Phraya River to the Thonburi side of Bangkok and Wong Wian Yai. It continues west along the Ratchapruek Road before it terminates at Bang Wa Station in Phasi Charoen District.^[5][6]

The line was first opened on 5 December 1999, along with the Sukhumvit. Both lines are operated by the Bangkok Mass Transit System Public Company Limited under a 30-year concession from the Bangkok Metropolitan Administration. When it opened, the line ran from National Stadium to Saphan Taksin stations covering a total distance of 6.5 km (4.0 mi) with 7 stations. Sukhumvit Line is one of the main arteries of the Bangkok Mass Rapid Transit System with 900,000 daily passengers per day (combined with the Sukhumvit Line).