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,
Watford Vicarage Road tube station Road Stadium, home of Watford F.C., as they felt that it was a more easily recognised local landmark. TfL stated that their policy is not to name new stations after individual roads in order to ensure geographical understanding across the whole Tube network. However, in recognition of local opinion and the wider recognition of the Vicarage Road name in association with the football club, they agreed to waive this rule. On 8 August 2013 TfL announced that they would name the station "Watford Vicarage Road". Watford Vicarage Road tube station Watford Vicarage Road was a proposed London Underground station in