[5] As the name suggests, it serves 13 stations in the neighbourhood of Bukit Panjang and parts of Choa Chu Kang in the north-west area of the country.

[6] Subsequently, Bukit Panjang was one of the two locations selected for the construction of the first LRT systems in Singapore in December 1994, the other being at Queenstown and linked to Buona Vista MRT station, the latter of which was eventually not built.

[8] In February 1996, then-Prime Minister Goh Chok Tong announced that an LRT system in Bukit Panjang had been given the go-ahead, and was expected to be completed in three years.

[10] In the same month, the contract for the system's design and construction was awarded to a consortium consisting of Keppel Corporation, Gammon, and Adtranz for S$285 million.

[17] However, a subsequent five-day service disruption in October 2002, caused by a loose guide wheel, led the LTA to conduct an audit on the maintenance procedures carried out for the line.

[23] Ridership on the line was also low, with around 40,000 commuters daily, 10,000 less than needed to break even, and was not expected to increase further, given a development slowdown in Bukit Panjang.

[25] These capacity increases, in the form of 13 additional train cars, and a supplementary bus service between heavily used stations on the line and Choa Chu Kang, were announced by then-Transport Minister Lui Tuck Yew in July 2011.

The authorities ruled out scrapping the entire system or changing to automated guided vehicles drawn on self-power as it would cause major traffic congestion.

[36] On 7 March 2018, LTA awarded the contract for $344 million to Bombardier, the original supplier of the rolling stock, to fully upgrade the system.

[31] Choa Chu Kang station also has two additional platforms and a new set of fare gates to ease crowding during peak hours.

[41][42] The Bukit Panjang LRT operates on the Bombardier Innovia APM 100 rolling stock, similar to the ones used by the Changi Airport Skytrain until 2006.

These trains, also known as automated people movers, are rubber-tyred for minimised operating noise within built-up areas and guided by a central guideway which also contains a power rail.

Two-car formations were no longer limited to peak hours due to the increase in ridership and number of apartments in Bukit Panjang.

When the Bombardier Innovia APM 300R C801B enter service, the line will be upgraded to use Alstom’s Cityflo 650 moving block communications-based train control (CBTC) signalling system.