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,
Russell Square tube station own unique tile pattern and colours. Train frequencies vary throughout the day, but generally operate every 4–7 minutes between 06:06 and 00:28 in both directions. London Buses routes 10, 59, 68, 91, 168, 188, peak-hour express X68 and night routes N91 and N98 serve the station. Russell Square tube station was used as the location for the 1973 horror film "Death Line", which starred Donald Pleasence, Christopher Lee and Clive Swift. Russell Square tube station Russell Square is a London Underground station opposite Russell Square on Bernard Street, Bloomsbury, in the London Borough of Camden. The station is on the