By the end of the century, it was also carrying main-line expresses from London to Leeds and Settle and Carlisle Line services to Scotland, while the main line to Derby served the expresses to Manchester, and the main line to Nottingham used the Corby line from Kettering and ran through the now closed Old Dalby line diverting near Melton Mowbray.
Old Dalby is the location of the control centre of the former British Rail Research Division's railway test track, which runs between Melton Mowbray and Edwalton and which was universally known in the industry as simply 'Old Dalby'.
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On 7 June 2007, Metronet announced that the contract for operating and maintaining the test track had been awarded to Serco Assurance (formerly Serco Railtest), based at the Railway Technical Centre in Derby.
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Following privatisation of the UK railways, the test track was taken over by Alstom and electrified on the 25kV overhead system in order to test the Virgin Trains tilting Pendolino fleet.
Old Dalby Test Track | Dalby, Queensland | Dalby | Andrew Dalby | Richard Dalby | Old Dalby | Graham Dalby | Frank Dalby Davison | Dalby Forest |
Apart from the HQ at Andover, there were other major units at Bovington,Old Dalby, Leics, Catterick, Colchester, Donnington, Stirling and Warminster.