Question to the Department for Transport:

To ask the Secretary of State for Transport, whether the most recent cost estimate held by his Department for Great Western Main Line electrification is greater than the efficient cost estimate set by the Office of Rail and Road's Enhancement Cost Adjustment Mechanism on 12 September 2014.

Network Rail have advised the Department that since the GWEP ECAM determination on the 12 September 2014, they have identified that the cost forecast will be higher. As part of Sir Peter Hendy’s review Network Rail intends to produce a revised baseline plan later in autumn 2015.