. The wooden escalator leading up to the platforms, was the last of its kind in use on the London Underground. Greenford station is above ground level with an island platform for the Central line. A
bay platform facing south-east between the Underground platforms serves the Greenford branch service operated by
Great Western Railway. The branch line then continues south and joins the
Great Western Main Line at . Platform 1 is for westbound Central line trains, and platform 3 for eastbound trains. The access to the platform via escalators takes passengers to the front of the train for westbound service, and the rear for eastbound service. Greenford was the first London Underground station to have an escalator up to platforms above street level. Until 2014 it remained the final London Underground station with a wooden-treaded escalator in service; all other such escalators were previously converted to fully metal treads, or removed altogether from sub-surface Underground stations in the wake of the fatal 1987
King's Cross fire. In addition to the shuttle train, the line between Greenford and West Ealing carries freight services including containerised domestic waste from near Brentford, sand and gravel traffic and previously saw the occasional special passenger service and a daily Chiltern Railways "parliamentary ghost train" from West Ruislip to West Ealing that returned non-stop to High Wycombe. In 2009, because of financial constraints, TfL decided to stop work on a project to provide step-free access at Greenford and five other stations, on the grounds that these were relatively quiet stations and some were already one or two stops away from an existing step-free station. £3.9 million was spent on Greenford before the project was halted. The step-free access project, consisting of a glass
incline lift, was later restarted, opening on 20 October 2015. ==Services==