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,
Snaresbrook tube station Snaresbrook tube station Snaresbrook is a London Underground station on the Central line, located in the area of Snaresbrook in North East London. The station is in Zone 4, between Leytonstone and South Woodford stations. The station was opened by the Eastern Counties Railway on 22 August 1856 as part of the Eastern Counties Railway branch to Loughton, which was eventually extended to Epping and Ongar in 1865. The station then formed part of the Great Eastern Railway's system until that company was merged into the London & North Eastern Railway (LNER) in 1923. The station was subsequently transferred to