Heathrow Terminal 4 tube station
|Heathrow Terminal 4|
Entrance from terminal
|Location||Heathrow Terminal 4|
|Local authority||London Borough of Hillingdon|
|Managed by||London Underground|
|Owner||Heathrow Airport Holdings|
|Number of platforms||1|
|London Underground annual entry and exit|
|Original company||London Regional Transport|
|London transport portal|
The station opened on 12 April 1986 to serve the then recently opened Heathrow Terminal 4. It is situated on a unidirectional loop tunnel which was constructed between the existing Hatton Cross and Heathrow Terminals 2 & 3 stations. The station is one of four on the London Underground with only one platform, and is the only one with one-way train service. It is adjacent to Heathrow Terminal 4 railway station used by main line TfL Rail services.
In-service routing took trains from Hatton Cross to Terminal 4 then Terminals 2 & 3 and back to Hatton Cross. On 7 January 2005, both the loop track and the station were closed temporarily in order to allow the construction of a new rail junction to link to the new Heathrow Terminal 5 station. All trains reverted to using the original westbound track from Hatton Cross direct to Heathrow Terminals 2 & 3 which was used prior to the opening of Heathrow Terminal 4. For passengers travelling to or from Heathrow Terminal 4, a shuttle bus was provided from Hatton Cross tube station. This situation continued until 17 September 2006 when the loop line and station were reopened after construction finished, with new security and customer announcement technologies in place at the station.
Heathrow Terminal 4 tube station is located on a unidirectional clockwise loop that branches off after Hatton Cross westbound, and rejoins the Heathrow branch eastbound to the west of Heathrow Terminals 2 & 3.
Since the opening of Heathrow Terminal 5 station, alternate Heathrow branch trains runs via the Terminal 4 loop, whilst the other alternate trains run directly to Heathrow Terminals 2 & 3, and Heathrow Terminal 5.
Until 2012, free transfer was not possible between terminals, in contrast to the Heathrow Express. In January 2012, free travel was introduced for Oyster card holders between the three Heathrow stations. But to travel from Heathrow Terminals 2 & 3 or Terminal 5 to Terminal 4 one must change trains at Hatton Cross. This journey is free, despite Hatton Cross itself not being part of the free travel zone.
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