Great Western Railway Routes

I thank the hon. Gentleman for his interesting intervention, and I am sure that the Minister will wish to respond to his detailed point. In the Public Accounts Committee discussion, one of the main issues was the signalling that was installed in the 1960s. When the piling was done, the cables were not mapped. Hopefully, as with the re-signalling in Devon and Cornwall, knowing exactly where the signalling cables are might make those lines more suitable for future electrification.