Editing London Underground (section)

====Northern line====
The signalling system on the Northern line has been replaced to increase capacity on the line by 20%, as the line now runs 24 trains per hour at peak times, compared to 20 previously. Capacity can be increased further if the operation of the Charing Cross and Bank branches is separated. To enable this up to 50 additional trains will be built in addition to the current 106 1995 stock. Five trains will be required for the Northern line extension and 45 to increase frequencies on the rest of the line. This, combined with segregation of trains at Camden Town junction, will allow 30–36 trains per hour compared to 24 trains per hour currently.<ref name="PR20140818" /><ref>{{cite web |title=Information on the Northern Line upgrade |url= http://www.railway-technical.com/Northern-Interview-article-for-MR-v5.pdf |publisher= railway-technical |access-date=25 June 2015 |url-status=dead |archive-url= https://web.archive.org/web/20150830075238/http://www.railway-technical.com/Northern-Interview-article-for-MR-v5.pdf |archive-date=30 August 2015 }}</ref>