High Marnham Test Track
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The High Marnham Test Track is a linear railway test track created in 2009 and centred on Lodge Lane, Tuxford, in Nottinghamshire in the United Kingdom.: 4, 8 It houses Network Rail's Rail Innovation & Development Centre (RIDC),: 1 originally known as the Rail Vehicle Development Centre (RVDC). The main route is approximately 14 miles (23 km) long and rated for speeds up to 75 miles per hour (120 km/h). It is primarily formed of a 10+1⁄2-mile (17 km) former section of the Lancashire, Derbyshire and East Coast Railway running between Thoresby Colliery Junction at the western end, and High Marnham Power Station at the eastern end.: 2 Additionally a 4-mile (6 km) branchline diverges northwards over the Bevercotes Colliery Branch via Boughton Brake Tunnel to Bevercotes.: 4 : 2
The main test track passes on a bridge directly over the East Coast Main Line, at the location of the former Dukeries Junction interchange station, but without a rail connection being provided. Instead the test track is accessed from the national British railway network via Shirebrook Junction on the Robin Hood Line and the existing line from there to Thoresby Colliery Junction.: 4 Access for trains is protected by an Annett's key under the supervision of an Engineering Technical Officer.: 2 There is no signalling on the line owing to theft and vandalism, including the previous destruction of the Ollerton Colliery signal box.