View source for Airport Express (MTR)

{{Short description|Hong Kong MTR railway line}}
{{About|the MTR line|the station on this line|Airport station (MTR)|the Apple Inc. product|AirPort Express|other uses|Airport Express (disambiguation){{!}}Airport Express}}
{{EngvarB|date=February 2014}}
{{Use dmy dates|date=November 2022}}
{{Infobox rail line
| name                            = <big>Airport Express<br>{{lang|zh-Hant-HK|機場快綫}}</big>
| status                          = Operational
| color                           = {{rcr|MTR|ae}}
| mapcolor                        = {{rcb|MTR|ae|box}} Teal (#{{rcr|MTR|ae}})
| logo                            = AirportExpressMTR.svg
| logo_width                      = 50px
| image                           = K411-E111 MTR Airport Express 22-06-2020.jpg
| image_width                     = 300px
| image_alt                       = 
| caption                         = An Airport Express train near {{STN|Sunny Bay|x}}, bound for {{STN|Hong Kong|x}}
| type                            = [[Airport rail link]]
| owner                           = [[MTR Corporation]]
| operator                        = MTR Corporation
| system                          = [[MTR]]
| locale                          = [[Districts of Hong Kong|Districts]]: [[Islands District, Hong Kong|Islands]], [[Kwai Tsing District|Kwai Tsing]], [[Yau Tsim Mong District|Yau Tsim Mong]], [[Central and Western District, Hong Kong|Central & Western]]
| start                           = {{STN|AsiaWorld-Expo|x}}
| end                             = {{STN|Hong Kong|x}}
| stations                        = 5
| connectinglines                 = {{plainlist|
* {{rcb|MTR|Tung Chung|croute}}
* {{rcb|MTR|Tsuen Wan|croute}}
* {{rcb|MTR|Island|croute}}
}}
| yearcommenced                   = {{start date and age|df=yes|1994|11}}
| open                            = {{start date and age|df=yes|1998|07|06}}
| lastextension                   = {{start date and age|df=yes|2005|12|20}}
| close                           = 
| depot                           = [[Siu Ho Wan]]
| stock                           = * [[MTR Adtranz–CAF EMU|Adtranz–CAF EMU]] 
* Future:CRRC Qingdao Sifang EMU
| linelength                      = {{cvt|35.2|km|mi|abbr=on}}<ref>{{cite web|url=https://www.mtr.com.hk/archive/corporate/en/publications/images/business_overview_e.pdf|title=Business Overview|date=July 2021|access-date=2022-08-05|pages=5}}</ref>
| speed                           = {{cvt|135|km/h|mph|abbr=on}}
| gauge                           = {{track gauge|1432mm|lk=on}}
| signalling                      = Advanced [[SelTrac]] [[Communications-based train control|CBTC]] <small>(future)</small><ref>{{cite news|url=https://www.railwaypro.com/wp/alstom-and-thales-to-supply-advanced-cbtc-signalling-system-to-hong-kongs-seven-metro-lines/|title=Alstom and Thales to supply advanced CBTC signalling system to Hong Kong's seven metro lines|date=2015-01-26|work=RailwayPRO|access-date=2022-08-17}}</ref>
| trainprotection                 = [[Système d'aide à la conduite, à l'exploitation et à la maintenance|SACEM]] <small>(to be replaced)</small>
| electrification                 = {{1,500 V DC}} ([[Overhead line]])
| map                             = [[File:Airport Express Line.svg|300px|center]]
----{{Airport Express RDT}}
| map_state                       = collapsed
| ridership2                      = 34,600 daily average (October 2023)<ref>{{cite web|title=Patronage Updates|url=https://www.mtr.com.hk/en/corporate/investor/patronage.php|publisher=Mass Transit Railway Corporation|access-date=3 December 2023}}</ref>
}}
{{Infobox Chinese
| pic = 
| align = 
| picsize = 
| title = Airport Express
| t = 機場快綫
| s = 机场快线
| l = 
| y = Gēichèuhng Faaisin
| ci = {{IPA|yue|kéi.tsʰœ̭ːŋ fāːi.sīːn|}}
| j = Gei1coeng4 Faai3sin3
| p = Jīcháng Kuàixiàn
| showflag = y
}}

The '''Airport Express''' ({{lang-zh|t=機場快綫}}) is one of the ten heavy rail lines of the Hong Kong [[MTR]] system (excluding the light rail network). It links the urban area with [[Hong Kong International Airport]] and the [[AsiaWorld–Expo]] exhibition and convention centre.

It is the only rail link to the airport. It runs parallel to the [[Tung Chung line]], a rapid transit line, from [[Hong Kong station]] to just south of the channel between [[Lantau Island]] and [[Chek Lap Kok]] island, on which the airport was constructed. The line continues to the airport and terminates at AsiaWorld–Expo. The Tung Chung line terminates in the adjacent [[Tung Chung]] new town, with bus service to various areas at the airport, including the passenger terminals.

The journey from [[Hong Kong station]] to the airport takes 24 minutes. It is indicated in '''{{color|#{{rcr|MTR|Airport Express}}|Teal}}''' on the [[MTR|MTR map]].

==History==
In October 1989, the [[Government of Hong Kong|Hong Kong government]] decided to replace the overcrowded [[Kai Tak Airport]], located in [[Kowloon]], with a new airport to be constructed at Chek Lap Kok.<ref>{{Cite news |last1=Basler |first1=Barbara |date=1989-10-16 |title=INTERNATIONAL REPORT; Hong Kong Builds for the Future: Big Airport Project Is Under Way |url=https://www.nytimes.com/1989/10/16/business/international-report-hong-kong-builds-for-future-big-airport-project-under-way.html |access-date=2024-06-10 |work=The New York Times |issn=0362-4331}}</ref><ref>{{Cite web |date=2007-06-14 |title=Rkwong |url=http://www.hku.hk/hkcer/articles/v5/rkwong.htm |access-date=2024-06-10 |archive-url=https://web.archive.org/web/20070614032438/http://www.hku.hk/hkcer/articles/v5/rkwong.htm |archive-date=14 June 2007 }}</ref> The government invited the Mass Transit Railway Corporation to build an express line to the airport. The project began when the Chinese and British governments settled the financial and land agreements in November 1994.

During the construction, the consultants for the Lantau Airport Railway, such as [[Arup Group|Arup]], [[Halcrow Group|Halcrow]], Meinhardt, [[Hyder Consulting]], and others.<ref>{{Cite book |title=MTR Corporation Annual Report 1998 |publisher=[[MTR Corporation]] |year=1998}}</ref>

The Lantau Airport Railway was developed as two separate MTR lines, the Tung Chung line and the Airport Express, with the two lines sharing tracks in some sections. It cost was projected to cost HK$35.1 billion.<ref name=davis>{{cite news|last1=Davis|first1=Chris|title=Rail "rocket" set to whisk passengers in comfort|work=South China Morning Post|date=18 December 1997|page=26}}</ref> The Airport Express began service on 6 July 1998, the opening date of the new Hong Kong International Airport. The line initially terminated at [[Airport station (MTR)|Airport station]] and the entire journey time was 23 minutes.<ref name=davis/>

With the opening of [[Sunny Bay station]] on the Tung Chung line in June 2005, the total journey time between the Airport and Hong Kong stations was increased to 24 minutes. With the opening of AsiaWorld–Expo, the line was extended to [[AsiaWorld–Expo station]] on 20 December 2005 and a journey on the entire route takes 28 minutes.

==Route==
{{Unreferenced section|date=July 2024}}
{{Rapid transit OSM map
| frame-lat    = 22.3222
| frame-long   = 114.0507
| frame-width  = 700
| frame-height = 350
| zoom         = 12
| stations     = y
| single_line  = y
| text         = Route of the Airport Express
| plain        = no
| frame-align  = right
}}
The Airport Express line runs from [[Hong Kong station]] in [[Central, Hong Kong|Central]]. It crosses beneath [[Victoria Harbour]] before stopping at [[Kowloon station (MTR)|Kowloon station]], which was built on [[Land reclamation|reclaimed land]]. The line then runs along the western side of the [[Kowloon Peninsula|Kowloon peninsula]], crosses over the [[Rambler Channel Bridge (railway bridge)|Rambler Channel rail bridge]] to [[Tsing Yi]], and stops at [[Tsing Yi station]]. The line continues on the [[Lantau Link]] and runs parallel to the [[North Lantau Highway]] to Airport station before terminating at AsiaWorld–Expo station.https://www.mtr.com.hk/archive/en/services/routemap.pdf

The line only shares tracks with the Tung Chung line in the cross-harbour tunnel and from the Lantau Link through the split before reaching the airport island. The two lines have independent tracks and platforms at all stations.

==Features==
[[File:Airport check-in at Hong Kong Station.jpg|thumbnail|In-Town Check-In counters at Kowloon station]]
[[File:SN6418 at HK West Kowloon Station (20181004155129).jpg|thumbnail|Airport Express Shuttle Bus]]
The Airport Express offers more spacious and comfortable trains and stations than other MTR services.<ref name=jrtr/> On the trains, there are luggage racks next to each door, and each seat is equipped with in-seat loudspeakers for current news, advertisements and announcements shown on LCD televisions in front.

===In-town check-in===
Airport Express passengers flying with [[Cathay Pacific]], [[Hong Kong Airlines]], [[Qantas]]<ref>{{cite web |title=Hong Kong to open in-town check-in for Qantas Airways passengers |url=https://www.scmp.com/news/hong-kong/transport/article/3297929/hong-kong-open-town-check-qantas-airways-passengers |website=South China Morning Post |date=2025-02-08 |access-date=2025-02-10}}</ref> or [[Singapore Airlines]]<ref>{{cite web |title=Singapore Airlines provides Hong Kong in-town check-in |url=https://www.thestandard.com.hk/breaking-news/section/4/228312/Singapore-Airlines-provides-Hong-Kong-in-town-check-in |website=The Standard 英文虎報 |date=2025-02-22 |access-date=2025-02-25}}</ref> are able to use the in-town check-in service at Hong Kong Station or Kowloon Station (Hong Kong Station only for Singapore Airlines passengers). This includes receiving boarding passes, and checking in luggage, both services usually performed at the airport. This allows travellers to spend time in the city without having to carry their luggage before travelling to the airport bags-free. Each train has a special baggage container car and the checked baggage is scanned in bulk by a mechanised automatic explosive detection system.<ref name=jrtr>{{cite journal|last1=Budge-Reid|first1=Alastair J.|title=The Hong Kong Airport Railway|journal=Japan Railway & Transport Review|date=March 1999|issue=19|pages=36–43|url=http://www.jrtr.net/jrtr19/pdf/F36_Budge-Reid.pdf|access-date=11 August 2015|archive-url=https://web.archive.org/web/20160304115806/http://www.jrtr.net/jrtr19/pdf/F36_Budge-Reid.pdf|archive-date=4 March 2016|url-status=dead}}</ref> Upon reaching the airport, baggage is automatically transferred from the express to the traveller's flight. In-town check in is also offered for a greater variety of airlines at both Hong Kong and Kowloon stations.

Baggage trolleys, wide fare gates, and free porter services are available at all stations except [[AsiaWorld–Expo station|AsiaWorld–Expo]] (only one per exit) to assist passengers with baggage.

===Shuttle bus service===
The Airport Express Shuttle Bus is a free service provided exclusively for Airport Express passengers at Hong Kong or Kowloon stations, connecting them with major hotels in the [[Western District, Hong Kong|Western District]] though [[Quarry Bay]] on [[Hong Kong Island]] and the [[Yau Tsim Mong District]] and [[Hung Hom station]] in Kowloon. Before boarding, proof of eligibility must be shown, including Airport Express train ticket (Single Journey, Same Day Return, Round Trip, Airport Express Travel Pass), Airline ticket / boarding pass, Airport Staff [[Octopus card]], AsiaWorld–Expo entry pass or event ticket.

The Airport Express Shuttle Bus service was discontinued from 30 June 2020 due to low ridership caused by the [[COVID-19 pandemic]]. 

In July 2024, the MTR began promoting private hotel shuttle services, which pick up passengers from the former AirPort Express Shuttle Bus bays at Hong Kong and Kowloon stations, providing services to a limited number of hotels in the Hong Kong and Kowloon areas.<ref>{{Cite web |title=MTR > Hotel Shuttle Service |url=https://www.mtr.com.hk/en/customer/services/hotel-shuttle-service.html |access-date=2024-07-30 |website=www.mtr.com.hk }}</ref>

===On-board WiFi and charging service===
WiFi is available on all Airport Express cars, while USB ports and power points are available in the first and seventh cars.<ref>{{cite web|title=COMPLIMENTARY IN-TRAIN POWER CHARGING SERVICE IN DESIGNATED CARS|url=http://www.mtr.com.hk/en/customer/services/intrain_power_charging.html|publisher=MTR|access-date=21 April 2018}}</ref>

==Graphic identity==
The Airport Express visual identity, which includes the logo, vehicle livery, signage, route maps and passenger information, was created in 1999 by [[Lloyd Northover]], the British design consultancy founded by [[John Lloyd (graphic designer)|John Lloyd]] and Jim Northover.<ref>{{cite web|title=Archive |url=http://www.lloydnorthover.com/archive.htm |publisher=Lloyd Northover |access-date=12 August 2015 |url-status=dead |archive-url=https://web.archive.org/web/20150527200406/http://www.lloydnorthover.com/archive.htm |archive-date=27 May 2015 }}</ref>

==Fare structure==
[[File:Airport Express compartment 13-01-2021.jpg|thumb|right|Inside the Airport Express with the Entry/Exit Path, along with the Baggage Compartments. The journey status can be seen from the overhead electronic strip map.]]

Fares on the Airport Express are substantially higher than main line fares since it is not an commuting line, its main purpose is to quickly transport passengers to and from the airport; thus a separate fare system is used for this line. A single trip by a single journey ticket between Hong Kong, Kowloon and Tsing Yi stations to Airport station cost [[Hong Kong dollar|HK$]]130, HK$115 and HK$80 respectively, while using an Octopus Card costs HK$120, HK$105 and HK$73 respectively. Return tickets within 30 days cost HK$215, HK$195, and HK$130 respectively.<ref>{{Cite web |title=MTR > Tickets and Fares |url=https://www.mtr.com.hk/en/customer/tickets/tf_index.html |access-date=2025-07-21 |website=www.mtr.com.hk |language=en}}</ref> Tickets are available at all MTR stations and the MTR online booking service.<ref>{{cite web|title=Payment method and process|url=http://www.mtr.com.hk/en/customer/buy_tickets/payment_method.html|publisher=MTR Corporation|access-date=12 August 2015}}</ref> Although there are no fare gates at Airport Station, passengers must still buy tickets from the ticket machines located in the Arrivals Hall, on platform 1 of the airport before boarding the train or at destination platforms (as they will not be able to exit from their destination platform otherwise).

Various discounts and rewards programmes are available, such as Group Ticket Discount, free taxi connections, Rewarding programme, [[Asia Miles]] programme, etc. Passengers may also buy discounted tickets from local travel agents. Discounts are available for groups of two to four people. Hong Kong residents can also obtain discount coupons, such as those sent from credit card companies. Discounted fares are available to airport staff to encourage commuting on the Airport Express.<ref>{{cite web|title=Airport Staff Discount Fare|url=https://extranet.hongkongairport.com/eng/transportation/airportexpress_fare.html|publisher=Airport Authority Hong Kong|access-date=12 August 2015}}</ref>

Same-day return discount will be given to [[Octopus card]] users who have stayed in AsiaWorld–Expo for at least one hour. The discounted fare costs HK$85, HK$78, and HK$53 from Hong Kong, Kowloon, and Tsing Yi stations respectively, and includes a free connection with other MTR lines. A single trip from the Airport to AsiaWorld–Expo is HK$6.5 by Octopus and HK$7 by a single journey ticket. <ref>{{Cite web |title=MTR > Tickets and Fares |url=https://www.mtr.com.hk/en/customer/tickets/tf_index.html |access-date=2025-07-22 |website=www.mtr.com.hk |language=en}}</ref>

Given their separate fare structure, Airport Express journeys require an out-of-system transfer if coming from or going to other MTR lines that call at the same or connected stations (e.g. coming from Central towards Hong Kong station or transferring between Airport Express and Tung Chung line trains). However, Airport Express passengers using Octopus cards can connect with all other MTR lines for free in conjunction with the Airport Express journey<ref>{{Cite web|url=http://www.mtr.com.hk/en/customer/services/complom_connections.html|title=MTR > Privileges and Complimentary Services|website=mtr.com.hk|access-date=2016-09-06}}</ref> within one hour of arrival at an Airport Express station.

In March 2010, the MTR began to replace the magnetic tickets used for single, group, and multiple journey tickets with new smart tickets that contain a memory chip. The new system was in full operation by 5 June 2010.<ref>{{cite web |url=http://travel2hk.com/2010/jul/doc/Information_Update.doc |title=Information Update – July 2010 |publisher=travel2hk.com |access-date=11 December 2010 }}</ref>

Due to the high fares and small catchment areas of the Airport Express stations, some travellers may instead choose to either use the cheaper, local Tung Chung Line combined with either route S1 jointly operated by LWB and Citybus or route S56 soley operated by Citybus, or make their entire journey by bus. Patronage on the Airport Express has been cannibalised by the Tung Chung line running mostly on the same track.<ref>{{Cite book|title=Moving Millions: The Commercial Success and Political Controversies of Hong Kong's Railways|last=Yeung|first=Rikkie|year=2008|publisher=Hong Kong University Press|location=Hong Kong|isbn=978-962-209-963-0}}</ref>

<gallery class="center">
Image:AEL Adult toAWE SJT.jpg|A magnetic strip standard single journey ticket towards [[AsiaWorld–Expo station|AsiaWorld–Expo]] (phased out since 5 June 2010) 
Image:AEL Adult toCity SJT.jpg|A magnetic strip standard single journey ticket towards city (phased out since 5 June 2010)
</gallery>

===Morning Express Service===
The Morning Express Service is a special promotional service, allowing passengers from [[Tsing Yi station|Tsing Yi]] and [[Kowloon station (MTR)|Kowloon]] stations to travel to Hong Kong station to get to work daily (excluding Sundays and public holidays) from 7am to 10am for HK$25 by Octopus.<ref>{{cite web|title=Airport Express "Morning Express Service"|url=http://www.mtr.com.hk/en/customer/tickets/ael_morningexpress.html|publisher=MTR Corporation|access-date=11 August 2015}}</ref> However, passengers who have enjoyed this service may not enjoy a free MTR connection from an Airport Express station. 
{{Clear}}

==Operation and stations==
Before the SARS pandemic outbreak in March 2003, Airport Express services operated every 10 minutes from the start of service (05:54 from Airport and 05:50 from Hong Kong) and every 12 minutes from 23:28 (from Airport) and 00:00 (from Hong Kong) until the last service 00:48. Train services were reduced to every 12 minutes due to declining passenger ridership. Even after the SARS, trains services did not return to pre-pandemic levels. In 2019, train frequencies were further reduced to every 15 minutes due to the anti-extradition bill protests. Sine the COVID-19 pandemic, the frequencies were reduced again to every 30 minutes. But from 5 November 2022, train services ran every 15-20 minutes throughout the day due to gradual lifting of travel restrictions around the world and the resumption of large-scale activities at AsiaWorld-Expo.<ref>{{Cite web |title=MTR > Schedule – Weekdays |url=https://www.mtr.com.hk/en/customer/services/timetable_detail_weekday.html |access-date=2023-01-16 |website=www.mtr.com.hk }}</ref>Train services have returned to their pre-SARS frequency and timetable since 5 June 2023 in conjunction with the 25th Anniversary since the line's opening. <ref>{{Cite web |title=MTR > Timetable |url=https://www.mtr.com.hk/en/customer/services/timetable_index.html |access-date=2024-07-30 |website=www.mtr.com.hk }}</ref> 

The Airport Express, along with other MTR heavy rail lines, is monitored by the Operations Control Centre in Tsing Yi.<ref>{{cite web|title=OCC Migration|url=https://www.mtr.com.hk/en/corporate/projects/projects_ops_improve_occ.html|publisher=MTR Corporation|access-date=12 August 2015}}</ref>

===Rolling stock===
The Airport Express is served by 11 [[MTR Adtranz–CAF EMU|CAF-Stock]] trains built and assembled by [[Construcciones y Auxiliar de Ferrocarriles]] in Spain while [[Adtranz]] contributed control and traction equipment. These trains were made up of seven cars (six passenger cars and a luggage car) until 2005. To cope with the extra traffic demand derived from the opening of AsiaWorld-Expo station, an additional passenger car was added to each train to form a total of eight cars (seven passenger cars and a luggage car). If future demand increases, trains are ultimately capable of running with ten cars (nine passenger cars and a luggage car). In service, the trains operate at a maximum speed of {{convert|135
|km/h|abbr=on}}, however they are designed to travel at a maximum speed of 140 km/h (89 mph).<ref>{{cite web|title=Hong Kong Airport Metro|url=http://www.caf.es/en/productos-servicios/proyectos/proyecto-detalle.php?p=169|publisher=CAF|access-date=12 August 2015}}</ref>

The train interiors saw their first refurbishment in 2008, after ten years in service. The grey seat covers were replaced with purple and green ones, and a new indigo carpet was installed.<ref>{{cite news|last1=Ng|first1=Yuk-hang|title=10-year-old Airport Express to get a facelift|work=South China Morning Post|date=16 December 2008|page=4}}</ref> The interior was updated yet again in 2020, and new seat covers featuring the blue and aquamarine AEL logos and a grey wave pattern will be paired with synthetic leather head rests.<ref name="upgrade">{{cite news |title=Upgrade in the works for Airport Express, but shuttle bus to be shut down |url=https://www.thestandard.com.hk/breaking-news/section/4/149207/Upgrade-in-the-works-for-Airport-Express,-but-shuttle-bus-to-be-shut-down |work=The Standard |date=16 June 2020}}</ref>
==Stations==
This is a list of the [[List of MTR stations|stations]] on the Airport Express line.

'''List'''
{| class="wikitable" style="color: black; border-collapse: collapse; font-size: 95%"
! rowspan="2" | Livery
! colspan="2" | Station Name
! rowspan="2" | Images
! rowspan="2" | Interchange;<br /><small>Adjacent transportation</small>
! rowspan="2" | Opening
! rowspan="2" | [[Districts of Hong Kong|District]]
|-
!English
!Chinese
|- bgcolor=#{{rcr|MTR|Airport Express}}
| colspan="7" style="text-align:center;" |'''<span style="color:white;">Airport Express Line (AEL)</span>'''
|-
| style="background-color:#FFFFFF;" |
| '''{{STN|Hong Kong|x}}'''
| 香港
| [[File:Concourse of Hong Kong station 2019-02-01 (2).jpg|100px]]
| {{rcb|MTR|Tung Chung|croute}}<br>{{rcb|MTR|Tsuen Wan|croute}} ({{STN|Central|x|MTR}})<br>{{rcb|MTR|Island|croute}} (Central)
| rowspan="4" |6 July 1998;<br />{{Years or months ago|1998|07}}
| [[Central and Western District|Central and Western]]
|-
| style="background-color:#EEEDED;" |
| '''{{STN|Kowloon|x|MTR}}'''
| 九龍
| [[File:Kowloon Waterfront, Hong Kong, 2013-08-09, DD 03.jpg|100px]]
| {{rcb|MTR|Tung Chung|croute}}<br>{{rcb|MTR|Tuen Ma|croute}} ({{STN|Austin|x|MTR}})<br>'''{{Stnlnk|Hong Kong West Kowloon}}''':<br>{{nbsp|6}}{{ric|MTR}} {{rint|cn|crh}} [[Guangzhou–Shenzhen–Hong Kong Express Rail Link|High-speed rail]] services to [[Mainland China]]
| [[Yau Tsim Mong District|Yau Tsim Mong]]
|-
| style="background-color:#89B0B7;" |
| '''{{STN|Tsing Yi|x}}'''
| 青衣
| [[File:Tsing Yi Station 2013 08 part1.JPG|100px]]
| {{rcb|MTR|Tung Chung|croute}}
| [[Kwai Tsing District|Kwai Tsing]]
|-
|
| '''{{STN|Airport|x|MTR}}'''
| 機場
| [[File:MTR-AirportExpress-Airport.JPG|100px]]
| {{rint|air}} [[Hong Kong International Airport]] 
| rowspan=2 | [[Islands District|Islands]]
|-
|
| '''{{STN|AsiaWorld–Expo|x}}'''
| 博覽館
| [[File:AsiaWorld-Expo_Station_2017_07_part5.jpg|100px]]
| {{sdash}}
| 20 December 2005;<br />{{Years or months ago|2005|12}}
|-bgcolor = #{{rcr|MTR|ae}}
|colspan = "7"|
|}

==Use in media==
In late 1998, [[Leon Lai]] showed a music video of MTR's Airport Express line for the song "Happy 2000", which includes the interior of the A-Train.

In the film ''[[Shock Wave 2]]'', a [[MTR Adtranz–CAF EMU|CAF-Train]] of the Airport Express was hijacked and planted with bombs, afterwards one of the terrorists drove it towards [[Hong Kong International Airport]].

==Design limitations==
When [[British Hong Kong]] was planning to build the Airport Railway ([[Tung Chung line]] and Airport Express) in the 1990s, a few years before the planned [[Handover of Hong Kong|handover to China]], the [[Government of China|Chinese government]] raised concerns about the effect of the project on the territory's fiscal reserves, which eventually forced the [[British Hong Kong|(British) Hong Kong government]] to reduce the cost of the Airport Railway. The resulting changes made imposed design limitations on the level of service on the line.<ref>{{in lang|zh-hk}}{{cite news|author=MTR Service Update|title=為甚麼東涌綫總是班次疏落？|url=http://www.vjmedia.com.hk/articles/2012/11/26/24965|access-date=2012-11-28|date=2012-11-26}}</ref>

* The airport rail link was originally designed to accommodate four tracks, two each for the Airport Express and Tung Chung line. It was later reduced to two tracks where both services share the same trackage. As a result, signal failures can affect both services.
* The [[Lantau Link]] section of the line (consisting of the [[Tsing Ma Bridge]], [[Ma Wan Viaduct]], and [[Kap Shui Mun Bridge]]) only allows one train to pass through each direction at the same time, raising the minimum [[headway]] between trains to 2 minutes 15 seconds.
* The signalling system is not capable of giving priority to Airport Express trains; as a result, Tung Chung line trains stopping at [[Sunny Bay station]] frequently impede Airport Express trains, which do not serve the station.
* The power supply system restricts the number of trains running between [[Kowloon]] and [[Lai King station|Lai King]] stations. The system can accommodate a maximum of one Airport Express train and two Tung Chung trains travelling in both directions at one time. The minimum headway on this section of the line is 3 minutes 30 seconds.

==See also==
* [[List of places in Hong Kong]]
* [[Transport in Hong Kong]]
* [[Delhi Airport Metro Express]]
* [[Hyderabad Airport Express Metro]]

==References==
{{Reflist}}

==External links==
{{Commons category}}
* {{official website|http://www.mtr.com.hk/en/customer/services/airport_express_index.html}}

{{Airport Express navbox}}
{{MTR}}
{{Crossings navbox
|structure=Tunnel crossings
|place=[[Victoria Harbour]]
|bridge=[[Tung Chung line]] and Airport Express between [[Kowloon station (MTR)|Kowloon]] and [[Hong Kong station|Hong Kong]]
|upstream=[[Western Harbour Crossing]]
|upstream text=West
|downstream=[[Tsuen Wan line]] between [[Tsim Sha Tsui station|Tsim Sha Tsui]] and [[Admiralty station (MTR)|Admiralty]]
|downstream text=East
}}

{{DEFAULTSORT:Airport Express (Mtr)}}
[[Category:Airport Express (MTR)| ]]
[[Category:1432 mm gauge railways in Hong Kong]]
[[Category:Immersed tube tunnels in Hong Kong]]
[[Category:MTR lines]]
[[Category:Railway lines opened in 1998]]
[[Category:Transport in Hong Kong]]
[[Category:Airport rail links in China]]