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,
Fairlop tube station Fairlop tube station Fairlop is a London Underground station in Fairlop in east London, England, which is on the Central line of the London Underground. It has been in Travelcard Zone 4 since 2 January 2007. It is on the north side of Forest Road, in Fairlop, just north of Barkingside. The station was opened on 1 May 1903 as part of the Great Eastern Railway's (GER) Woodford to Ilford "loop" or branch line (the Fairlop Loop). This line, designed to stimulate suburban growth, had a chequered career. As a consequence of the 1921 Railways Act, the GER was merged