Editing London Underground (section)

====Victoria line====
The signalling system on the Victoria line has been replaced to increase capacity on the line by around 25%; the line now runs up to 36 trains per hour compared to 27–28 previously. The trains have been replaced with 47 new higher-capacity 2009-stock trains. The peak frequency was increased to 36 trains per hour in 2016 after track works were completed to the layout of the points at Walthamstow Central crossover, which transfers northbound trains to the southbound line for their return journey. This resulted in a 40% increase in capacity between Seven Sisters and Walthamstow Central.<ref>{{cite press release |title=Major works to improve Victoria line services this summer |url=https://tfl.gov.uk/info-for/media/press-releases/2015/february/major-works-to-improve-the-victoria-line-over-the-summ |publisher=TfL |date=17 February 2015 |access-date=25 June 2015 |archive-date=24 May 2015 |archive-url=https://web.archive.org/web/20150524035913/http://www.tfl.gov.uk/info-for/media/press-releases/2015/february/major-works-to-improve-the-victoria-line-over-the-summ |url-status=live }}</ref><ref>{{Cite news |url=https://www.guardian-series.co.uk/news/14492247.victoria-line-trains-run-end-end-first-time/ |title=All Victoria Line trains to run 'end to end' for first time |work=East London and West Essex Guardian Series |location=Watford |date=13 May 2016 |first=Tom |last=Barnes |access-date=21 April 2021 |archive-date=10 May 2021 |archive-url=https://web.archive.org/web/20210510042703/https://www.guardian-series.co.uk/news/14492247.victoria-line-trains-run-end-end-first-time/ |url-status=live }}</ref>