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,
Barbican tube station service in trains per hour (tph) is: Off-peak services to/from Watford terminate at Baker Street The typical peak time service in trains per hour (tph) is: London Buses routes 4, 56 and 153 serve the station. When Crossrail is completed, 's eastern ticket hall will be just to the west of Barbican station, and an interchange is being built here. This has involved significant changes at the western end of the station, including the demolition of the former signal box and the provision of a new footbridge spanning the tracks. Work is anticipated to be completed in 2018. Barbican tube