and later by Silverlink, it was shown in British Rail/National Rail colours, but its appearance was intermittent and was omitted from some map editions over the years. In November 2007, the line was taken over by London Overground and changed to an orange double stripe. The semi-orbital route originally ran from Richmond to Broad Street and later Richmond to North Woolwich. The line runs now from Richmond to Stratford. The West London line, Watford DC Line and Gospel Oak to Barking Line (former British Rail/Silverlink lines) were all added to the standard map in 2007, when they were taken over by London Overground, and all are shown as an orange double stripe. The Northern City Line appeared on the original 1908 map as the Great Northern and City Railway. It later appeared as the Great Northern and City section of the Metropolitan Railway and then, from the late 1930s as part of the Northern line. The service was transferred to British Rail in 1975 and continued to appear until recently. Thameslink reopened in 1988 after it had been closed for many years. It offers some relief to the Northern line, as it connects King's Cross St Pancras to London Bridge. Only the central sections between Kentish Town and London Bridge/Elephant & Castle were shown. Its appearance on Tube maps had been intermittent since it had been omitted from some map editions over the years, before it was re-added to the official tube map in December 2020. The Docklands Light Railway, the automatic light rail system in the London Docklands area. The London Cable Car, linking Greenwich Peninsula and Royal Docks across the Thames, was added in December 2011. The first section of the Crossrail franchise, TfL Rail, was added in May 2015. Also in May 2015, the Chingford line, Enfield & Cheshunt line, and Romford–Upminster line were added to the London Overground network on the tube map. Tramlink, shown in 2016 as London Trams, was included on the map from June 2016. The Elizabeth line was added to the map in May 2022. When Transport for London expanded its London Overground service to include the East London line in 2010, the East London line, extended to Croydon, changed from a solid orange line to a double orange stripe. According to 2007 proposals, the addition of the South London line to London Overground was supposed to cause the southern loop to