London Underground carriages thought to be a District Railway first class, but now thought likely to be a cutdown Metropolitan Railway eight-wheeler. A Jubilee Stock first class carriage was restored to carry passengers in January 2013 during the Met's 150th anniversary celebrations. The Bluebell Railway has four 1898–1900 Ashbury and Cravens carriages, and a fifth, built at Neasden, is at the London Transport Museum. The Vintage Carriages Trust has three preserved Dreadnought carriages. London Underground carriages The London Underground opened in 1863 with gas-lit wooden carriages hauled by steam locomotives. The Metropolitan and District railways both used carriages exclusively until they electrified in
Transport in London and is operated by Southern running between Milton Keynes Central in the north and in the south. A major expansion of the Thameslink route is planned 2013-18, in which a number of existing regional rail services will be redirected via the cross-London Thameslink corridor. Constantly increasing pressure on the commuter rail systems and on the Underground to disperse passengers from the busy terminals has led to the multibillion-pound Crossrail scheme. When completed, Crossrail will add a further cross-London line passing through Paddington and Liverpool Street. Construction work is currently underway, and twin 16-km tunnels are being bored underneath the city