The LRT Ampang Line and the LRT Sri Petaling Line are light rapid transit (LRT) lines in the Klang Valley, Malaysia. The combined network comprises of tracks with 36 stations and was the first railway in Malaysia to use standard-gauge track and semi-automated trains. The lines are operated as part of the Rapid KL system by Rapid Rail, a subsidiary of Prasarana Malaysia.
A trip from one end to the other takes 41 minutes on the LRT Ampang Line, and 74 minutes on the LRT Sri Petaling Line. The LRT Ampang Line is named after its eastern terminus, Ampang station, while the LRT Sri Petaling Line is named after its former southern terminus, Sri Petaling station.
The LRT Ampang and Sri Petaling Lines form part of the Klang Valley Integrated Transit System, numbered 3 and 4, and are coloured orange and maroon on official rail maps respectively.
History
The Ampang Line and Sri Petaling Line were originally known as the STAR-LRT (abbreviation for Sistem Transit Aliran Ringan, which translates to Light Rail Transit System), a single train line originating at Sentul Timur station, with two branches to Ampang and Sri Petaling via Chan Sow Lin station.
STAR-LRT was first conceived in the 1981 Transport Master Plan, when the Malaysian government proposed a network of LRT lines connecting Kuala Lumpur city centre with the surrounding areas. An agreement was signed between the government and STAR in 1992.An LRT-Bus strategy for greater Kuala Lumpur: What future integration?, page 9-10
The original system () consists of 25 stations built in two phases. Phase one () consists of 14 stations (Ampang – Sultan Ismail) and a depot near Ampang station. Phase two () consists of 11 stations (Chan Sow Lin – Sri Petaling, and Sultan Ismail – Sentul Timur). The two phases opened in December 1996 and July 1998, respectively.Trolley Wire, page 12-14Light Rail Transit Stations , page 4
The early phase of Ampang Line used defunct Keretapi Tanah Melayu Ampang branch railway and followed closely with the right-of-way from the old Sultan Street railway station which runs toward Salak.
The initial plan was for STAR to build, own and manage the STAR-LRT. However, STAR ran into financial difficulties and had to be bailed out by the government.LRT to be bailed out, govt confirms So, in 2002, Prasarana took over the line and renamed the STAR-LRT to the STAR line. Operations of the line were subsequently transferred to Rapid KL in 2004 and the line was renamed the LRT Ampang Line and LRT Sri Petaling Line in 2005. The LRT Ampang Line assumed the branch line between Sentul Timur and Ampang stations, whereas LRT Sri Petaling Line assumed the branch line between Sentul Timur and Sri Petaling stations.
Extensions
In 2006, the government announced the LRT Sri Petaling Line extension project. The extension comprised 11 new stations over of elevated track beyond Sri Petaling station. This extended the terminus of the Sri Petaling Line from Sri Petaling to Putra Heights. Unlike the original line, which uses the Fixed-block signalling system, the extension uses the Communications-based train control (CBTC) signalling system. As a result, when the first four stations and the next four stations opened on 31 October 2015 and 31 March 2016, the extension ran as a separate train service between Sri Petaling station and Bandar Puteri station. Re-signalling had to be carried out on the original line before the extension could be combined with the rest of the line. Thales was awarded a contract on 3 September 2012 to upgrade the signalling system on the original line, and the work was completed in July 2016.
Stations The LRT Ampang and Sri Petaling Lines run on a common route between Sentul Timur station and Chan Sow Lin station, serving Kuala Lumpur city centre, effectively making all the stations on this section act as interchanges between both lines. The stations have a dedicated platform for trains travelling north to Sentul Timur, and one for trains travelling to Chan Sow Lin, with trains on the respective lines taking turns to stop at the stations at a given time. From the Chan Sow Lin station, the lines diverge and run separately. The LRT Ampang Line travels to its terminus, Ampang station, serving towns in the Cheras and Ampang Jaya areas. The LRT Sri Petaling Line runs to Putra Heights station, where it meets the LRT Kelana Jaya Line, serving southern Kuala Lumpur and Puchong.
Stations on both lines have similar architectural designs and are a mixture of surface and elevated stops. There are no underground stations on either line. Most of the stations have two side platforms, except for four stations that use one single island platform. Chan Sow Lin station has two island platforms, allowing cross-platform interchange between trains from Ampang and Putra Heights, while Putra Heights station has two side platforms and one island platform to facilitate transfers between the LRT Sri Petaling Line and the LRT Kelana Jaya Line.
The stations were initially built without accessibility options for physically challenged passengers. Disabled-friendly facilities for most stations on both lines were installed at the beginning of 2012.
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