London Underground and the mechanisms are regularly degreased to lower the potential for fires. The only wooden escalator not to be replaced was at Greenford station, which remained until October 2015 when TfL replaced it with the first incline lift on the UK transport network. There are 426 escalators on the London Underground system and the longest, at , is at Angel. The shortest, at Stratford, gives a vertical rise of . There are 184 lifts, and numbers have increased in recent years because of investment making tube stations accessible. Over 28 stations will have lifts installed over the next 10 years,
Hanger Lane tube station investment to increase the number of accessible stations on the Tube. In 2004 the multinational Diageo company agreed to build platforms to the east for an interchange with Park Royal on the Piccadilly line, as part of its First Central business park, built on the site of the (now demolished) Guinness brewery. As of February 2013, this has not happened. London Buses routes 95, 112, 226, 483 and 487 serve the station. Hanger Lane tube station Hanger Lane is a London Underground station in Hanger Hill, Ealing, on the border between West and Northwest London. It is located on the