control access to all platforms. A large West London Waste Authority bulk rubbish handling depot lies to the east of the station which sees a daily waste train in operation. There is also a single-track connection with the Acton–Northolt line. The lines to Marylebone formerly passed either side of West Waste. As part of Chiltern Railways' Evergreen 3 route improvements works, Northolt Junction was remodelled and included provision to the north of the waste transfer depot of a new down main line alongside the existing up main to allow services to be accelerated. The new down main line has a line speed limit of compared with the former . The existing down main was remodelled to become the down loop line, used by trains stopping at South Ruislip station. The bridge outside which carries the lines over Station Approach is lower than others locally at and is often hit by high vehicles. Either side of it, false deck beams have been installed so the danger of any impacts causing damage to the bridge itself has been lessened. Services Services at South Ruislip are operated by London Underground on the Central Line and by Chiltern Railways. The off-peak services at the station are: London Underground (Central Line) 9 tph to West Ruislip 9 tph to Epping Chiltern Railways 1 tph to 1 tph to On weekends, the northbound service runs to instead of High Wycombe. There is also one Parliamentary Service on Wednesday only to via the Greenford branch line. Connections London Buses routes 114 and E7 serve the station. References Bibliography Edwards, Dennis. F. (1985) Bygone Ruislip and Uxbridge. Chichester: Phillimore & Co. External links London Transport Museum Photographic Archive Central line (London Underground) stations Railway stations in the London Borough of Hillingdon Tube stations in the London Borough of Hillingdon Former Great Western and Great Central Joint Railway stations Railway stations in Great Britain opened in 1908 Railway stations served by Chiltern Railways 1908 establishments in England