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,
Chalk Farm tube station and Adelaide Road, which create an angular intersection that forms the centre of the neighborhood of the same name. Chalk Farm's narrow, wedge-shaped station building gives it the longest frontage of any of the stations designed by Architect Leslie Green for the three tube lines owned by the Underground Electric Railways Company of London and opened in 1906 and 1907. It also has the shallowest lift shafts of any Underground station (21 ft). Station refurbishment by Tube Lines was completed in 2005. The station is a Grade II listed building. London Buses routes 31, 168 and 393 and night routes