Question to the Department for Transport:

To ask Her Majesty's Government what assessment they have made of the out-turn cost, in cost per single track kilometre, for completing the electrification of the Great Western Main Line.

In the National Audit Office report earlier this year, the total estimated cost of the Great Western Route Modernisation infrastructure programme was £5.58billion.

The Department for Transport does not hold information on the cost of per single track kilometre.