Tuen Ma line

Tuen Ma line 屯馬綫
A CRRC Changchun EMU train approaching Hin Keng station
Overview
Status	Operational
Owner	Kowloon-Canton Railway Corporation
Locale	Districts: Tuen Mun District, Yuen Long District, Tsuen Wan District, Sham Shui Po District, Yau Tsim Mong District, Kowloon City District, Wong Tai Sin District, Sha Tin District
Termini	Tuen Mun Wu Kai Sha
Continues from	Ma On Shan line West Rail line
Connecting lines	East Rail line Kwun Tong line Tung Chung line Tsuen Wan line Light Rail
Stations	27
Color on map	Brown (#923011)
Service
Type	Commuter rail / Rapid transit
System	MTR
Operator(s)	MTR Corporation
Depot(s)	Tai Wai, Pat Heung, Hung Hom sidings
Rolling stock	SP1900 EMU (IKK-train) Tuen Ma Line C-train
Ridership	595,700 weekday average (Sept to Oct 2014, combined from former Ma On Shan and West rail line ridership)[1]
History
Planned opening	2030 (Tuen Mun South extension; Tuen Mun South to Tuen Mun)
Opened	20 December 2003 (KCR West Rail; Tuen Mun to Nam Cheong) 24 October 2004 (Tsim Sha Tsui Spur Line; East Tsim Sha Tsui to Hung Hom) 21 December 2004 (Ma On Shan Rail; Wu Kai Sha to Tai Wai) 16 August 2009 (Kowloon Southern Link; Nam Cheong to East Tsim Sha Tsui) 14 February 2020 (Phase 1; Tai Wai to Kai Tak) 27 June 2021 (Full Line; Kai Tak to Hung Hom)[2]
Technical
Line length	56.2 km (34.9 mi)
Number of tracks	Double-track
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge
Electrification	25 kV 50 Hz AC (Overhead line)
Operating speed	Average: 38 km/h (24 mph) Maximum: 130 km/h (81 mph)[3]
Signalling	SelTrac CBTC
Route map Legend Light Rail Tuen Mun South      Tuen Mun Ferry Pier A16 Tuen Mun      Siu Hong      Tuen Mun River Kong Sham Western Highway Hung Shui Kiu Tin Shui Wai Nullah Hung Tin Road Light Rail Tin Shui Wai      Light Rail Long Tin Road Long Ping Shan Pui River Yuen Long      Yuen Long Highway Tsing Long Highway Northern Link to Kwu Tung Kam Tin River Kam Sheung Road Pat Heung Depot Tai Lam Tunnel Tsuen Wan West Tsuen Wan Pier Tsuen Wan line to Tsuen Wan Mei Foo      Tung Chung line to Tung Chung Nam Cheong      Tung Chung line to Hong Kong Austin Express Rail Link Hong Kong West Kowloon Tsim Sha Tsui      (OSI) Tsuen Wan line to Central East Tsim Sha Tsui East Rail line to Admiralty Hung Hom      Intercity Through Train Terminus   Stabling sidings Chatham Road North Ho Man Tin      Kwun Tong line to Whampoa Moves on left hand side above this line To Kwa Wan Moves on right hand side below this line Sung Wong Toi Kai Tak Nullah Kai Tak Diamond Hill      Kwun Tong line to Tiu Keng Leng Lion Rock Tunnel (left)/Beacon Hill Tunnel (right) Hin Keng Tsing Sha Highway Tai Wai Depot Tai Wai      Che Kung Temple East Rail line to Lo Wu/Lok Ma Chau Sha Tin Wai Sha Tin Road City One Siu Lek Yuen Nullah Shek Mun Tate's Cairn Highway Luk Chau Stream Tai Shui Hang Ma On Shan Road Heng On Ma On Shan Sai Sha Road Wu Kai Sha This diagram: view talk edit

The Tuen Ma line (Chinese: 屯馬綫) is a commuter rail / rapid transit line that forms part of the Mass Transit Railway (MTR) system in Hong Kong. Coloured brown on the map, the Tuen Ma line is 56.2 kilometres (34.9 mi) in length, making it the longest line of the MTR network. It has a total of 27 stations, more than any other in the MTR system.^[4]

The Tuen Ma line is a merger of two former MTR lines, the West Rail line and the Ma On Shan line via a new stretch of mostly underground railway known as the "Tai Wai to Hung Hom section" (大圍至紅磡段) of the Sha Tin to Central Link project. It consists of 11 kilometres (6.8 mi) of track and six new intermediate stations. The Tai Wai to Kai Tak section (大圍至啟德段) opened on 14 February 2020, while the Kai Tak to Hung Hom section opened on 27 June 2021, thereby completing the line.^[5]

During the planning and construction phase, this line was referred to as the "East West Corridor" (東西走廊). On 25 May 2018, the operational name "Tuen Ma line" was confirmed by the MTR Corporation, reflecting the names of Tuen Mun and Ma On Shan where the line's two termini are located. The full journey time is about 73 minutes.^[6]