Background Proposal The United Kingdom and China signed an agreement to cooperate on the construction of a railway from Kowloon to
Canton (now Guangzhou). The whole project was long, with in the British Section and for the Chinese Section. Construction started in 1906. The most difficult section was the approx. 7200-foot-long (2195 m)
Beacon Hill Tunnel, and about a hundred workers died in the construction.
Construction The construction was mainly carried out by the Chinese. The government built camps in Kowloon to support the construction. Most of the railway alignment was on flat land, so construction was relatively easy in those places, however, the construction of the Beacon Hill Tunnel involved digging and blasting. The tunnel's two ends were of soft soil, but the centre was granite. This caused a delay in construction as it was not suitable to use explosives at the two ends while the explosives could not blast off a lot of rock in the centre.
Pre-electrification era The railway line to the Chinese border, then called the
Kowloon-Canton Railway (British Section) (KCRBS; ), opened for passenger services on 1 October 1910.
Tai Po Kau station and the original Tai Po Market station were closed, with the latter being redeveloped into the
Hong Kong Railway Museum. The development finished in sections between 1982 and 1983, with new
Metro Cammell EMUs, manufactured by
Metro-Cammell in England, replacing
diesel locomotives. With the modernisation of the railway and the concurrent urbanisation of the New Territories, ridership rose quickly, from a daily average of 190,000 in 1983 to 491,000 in 1990. A temporary station in Tai Wai opened in 1983 while the permanent
Tai Wai station was completed in 1986.
Fo Tan station opened in 1985 to serve the expanding industrial estate.
Tai Wo station opened in 1989 to serve
Tai Wo Estate and to replace
Tai Po Kau station and the
old Tai Po Market station.
Expansion since the 1990s The 1990s saw more rapid development and changes within the railway. The
Kowloon-Canton Railway Corporation (KCRC) signed a contract with Anglo-French manufacturing giant
GEC-Alsthom to refurbish the Metro-Cammell
EMUs at the East Rail depot at
Ho Tung Lau. In 1996, the first refurbished train was put into service on the line, which was now known as
KCR East Rail (), and trains now allow passengers to traverse from one end to another (except for the first class carriage), when trains once ran on four three-car EMUs. All but three of the 351 railcars were refurbished; the only unit exempt from refurbishment was unit E44 (144-244-444), which is currently stored in
Ho Tung Lau depot. The yellow-cab train was formally retired with a "Farewell Ride" on 31 October 1999. When refurbished, each set was still made up of 12 cars (with one first-class car). Prior to the rule proclaimed in 1994 which fixed the number of cars on each set to 12, trains were inconsistent in terms of length, ranging from six cars (two EMUs), nine cars (three EMUs) to 12 cars (four EMUs). In terms of appearance, trains no longer have the monotonous design of having a red stripe running across the middle from the cab to the end; the doors now have a red coating, and the window panes along with the upper part are fashioned with blue paint. The original design of the train front, encapsulating the driver's cab and commonly referred to as the "Yellow-cab", was replaced with a more modern design capped with a silver coating, and a digital display added providing the train's destination. The design of the EMU was modified as well: four more sets of doors being added to each car, adding up to a total of ten sets of doors, each side with five; the introduction of new passenger information plasma display; and more standing space by rearranging seating patterns from the traditional back-to-back seating to a longitudinal design. In 1998, a new signalling system, known as
Transmission balise-locomotive (TBL, as used in Belgium), came into operation on the line. This
Automatic Train Protection (ATP) system, a replacement for the previous
Automatic Warning System (AWS) developed in Britain, ensures a safe distance is maintained between trains. It also allowed an increase in train frequencies from 20 to 24 per hour each way. The control centre was also relocated from
Kowloon station to a new facility in the KCRC operations headquarters building at
KCRC House (now known as the Fo Tan Railway House). Also as part of the ATP project, a two kilometre section of the tracks near the
Pak Shek Kok reclamation, curving around the former coastline, was straightened out during the mid-1990s. The tracks now run alongside the
Tolo Highway. A vestige of the former alignment, an old bridge beside Cheung Shue Tan village built between 1906 and 1909, was identified by the
Antiquities and Monuments Office in 2008 as a historic asset. In 2002, an
automatic train operation (ATO) system was added to TBL, which controls the speed of the train for the driver and ensures that all trains will stop when arriving at every station. Under normal circumstances, most trains are operated in ATO mode except for scenarios such as operation of trains in and out of train depots, driver training, or at times when the ATO system fails to function properly. However, intercity trains using the East Rail line continue to operate on AWS., which served as the southern terminus before the extension to AdmiraltyIn 2004, the railway was extended in tunnel to a new southern terminus at
East Tsim Sha Tsui station. On 28 December 2004, a branch to the East Rail, the
Ma On Shan Rail was added, with an interchange at Tai Wai. On 15 August 2007, an extension from Sheung Shui station northwest through a tunnel to Lok Ma Chau station was opened. This provides a second border crossing between
Hong Kong SAR and Mainland China.
Development under MTR Corporation The
Kowloon–Canton Railway (KCR) network, of which East Rail was part of, was
amalgamated into the
MTR system on 2 December 2007. The KCR East Rail was renamed the East Rail line. At that time, the line terminated at East Tsim Sha Tsui in the south, and Lo Wu / Lok Ma Chau in the north. On 16 August 2009, Hung Hom became the southern endpoint of both the East Rail line and West Rail Line after the completion of the
Kowloon Southern Link. The section of East Rail line between Hung Hom and East Tsim Sha Tsui was taken over by the West Rail line, with the latter station becoming an intermediate stop on West Rail line (now part of Tuen Ma line). As the COVID-19 pandemic started to affect Hong Kong in early 2020, the Hong Kong government closed all border crossings on the land boundary with Mainland China, including the Lo Wu and Lok Ma Chau Spur Line control points, on 3 February. During the closure, Lo Wu station served only certified residents nearby, while passenger service at Lok Ma Chau was completely suspended. Northbound trains terminated at
Sheung Shui for three years, until Lok Ma Chau crossing was reopened on 8 January 2023 following the lifting of travel restrictions. Lo Wu station reopened to cross-boundary passengers on 6 February 2023, after completion of renovation.
Shatin to Central Link project First conceived in 1967, the
Shatin to Central Link (SCL) expansion project received approval in 2012, and began construction later in the same year. Phase 2 of the link is a southern extension of East Rail line which takes the line southward across
Victoria Harbour to a new terminus, Admiralty station, on
Hong Kong Island. The extension also includes an intermediate station at
Exhibition. In preparation for this extension, the TBL and ATO signalling systems in use on the East Rail line were replaced by the
Trainguard MT communications-based train control system supplied by Siemens. The line also received new rolling stock in the form of 37 nine-car
R-Trains, which would completely replace all existing trains used on the line. The new signalling system was slated to replace the old ones on 12 September 2020 and R-Trains would start carrying passengers on the same day, but one day before the changeover, the discovery of abnormalities that misrouted Lok Ma Chau bound trains into tracks towards Lo Wu on three occasions during the system reliability tests was revealed by a media report. The changeover of signalling systems was eventually postponed to 6 February 2021. From that day until 6 May 2022, East Rail line entered the stage of "Mixed Fleet Operation" (MFO) in which new 9-car trains were put to service, running alongside and gradually replacing the legacy 12-car Metro-Cammell EMUs (the SP1900 EMUs were removed from service on the line once MFO started). Passenger services started on the cross-harbour extension on 15 May 2022. The extension allows New Territories East residents to reach the central business district in one train ride. During the first two weeks after the extension's commissioning, the patronage of the line's critical link, that is the section from Tai Wai to Kowloon Tong, during the busiest hour in the morning peak recorded a 27% increase from 26,000 to 33,100
pphpd. As the need to transfer from the line to other MTR lines (at Kowloon Tong or Hung Hom / East Tsim Sha Tsui) or
cross-harbour tunnel buses (at Hung Hom) for destinations on Hong Kong Island is now eliminated, the new extension had relieved the critical links on
Tsuen Wan line and
Kwun Tong line of around 20% and 10% loading during morning peak, respectively. The introduction of new trains and signalling systems under the SCL project presented an opportunity to improve the line's infrastructure. The local community had long fought for the retrofitting of
automatic platform gates (APGs) on East Rail line platforms, yet the pre-SCL signalling system could not support their addition. As construction of the SCL project progressed, advance works for APGs installation including platform structure reinforcement was also carried out. A year after the cross-harbour extension opened, the installation of APGs formally commenced, with the first pairs of APGs at Racecourse and Tai Po Market stations putting into operation on 7 May and 3 June 2023, respectively. The installation on all the other remaining stations finished on 4 June 2025. • North of today's
Mong Kok East station •
Beacon Hill Tunnel • South of where
University station stands today • North of university station • At
Tai Po Kau During the construction of the
Cross-Harbour Tunnel, which opened in 1972, the section of tracks near
Oi Man Estate,
Ho Man Tin was covered to construct the section of
Princess Margaret Road connecting to the Cross-Harbour Tunnel. A new tunnel was therefore created and given the number 1A. During the modernisation of the line in the early 1980s, Tunnels 1, 3, 4 were removed by demolishing the mounds above them. Tunnel 1A already had double track width when built; a completely new Beacon Hill Tunnel (Tunnel 2) was constructed and took over the original one; and Tunnel 5 was doubled. The new one is known as Tunnel 5A. ==Rolling stock==