Editing London Underground (section)

====Central line====
[[File:The new Shepherd's Bush Underground station - geograph.org.uk - 2421843.jpg|thumb|The new [[Shepherd's Bush tube station|Shepherd's Bush]] station, part of a [[Central line (London Underground)|Central line]] improvement]]
The Central line was the first line to be modernised in the 1990s, with 85 new 1992-stock trains and a new automatic signalling system installed to allow Automatic Train Operation. The line runs 34 trains per hour for half an hour in the morning peak but is unable to operate more frequently because of a lack of additional trains. The 85 existing 1992-stock trains are the most unreliable on the London Underground as they are equipped with the first generation of solid-state direct-current thyristor-control traction equipment. The trains often break down, have to be withdrawn from service at short notice and at times are not available when required, leading to gaps in service at peak times. Although relatively modern and well within their design life, the trains need work in the medium term to ensure the continued reliability of the traction control equipment and maintain fleet serviceability until renewal, which is expected between 2028 and 2032. Major work is to be undertaken on the fleet to ensure their continued reliability with brakes, traction control systems, doors, automatic control systems being repaired or replaced, among other components. The Central line will be part of the New Tube for London Project. This will replace the existing fleet with new air-cooled walkthrough trains and a new automatic signalling system. The line is predicted to run 36 trains per hour, a 25% increase compared to the present service of 34 trains for the busiest 30 minutes in the morning and evening peaks and 27–30 trains per hour during the rest of the peak.<ref name="New Tube for London Feasibility Report" /><ref name="Report on Central Line train overhaul">{{cite web |title= Central line train overhaul project |url= https://tfl.gov.uk/cdn/static/cms/documents/fpc-20150311-part-1-item16-central-line-overhaul.pdf |publisher= TfL |access-date= 25 June 2015 |archive-date= 26 June 2015 |archive-url= https://web.archive.org/web/20150626134753/https://tfl.gov.uk/cdn/static/cms/documents/fpc-20150311-part-1-item16-central-line-overhaul.pdf |url-status= live }}</ref><ref>{{cite web |title=Central line timetable |url= https://tfl.gov.uk/cdn/static/cms/documents/wtt-67-central-15-september-2013.pdf |archive-url= https://web.archive.org/web/20140415231448/http://tfl.gov.uk/cdn/static/cms/documents/wtt-67-central-15-september-2013.pdf |url-status= dead |archive-date= 15 April 2014 |publisher=TfL |access-date=25 June 2015}}</ref>