The UK 's Transport Secretary represents a seat centered on a prospective terminus of one of the branch lines , Epsom and Ewell .
On 2 March 2018 , the UK 's Transport Secretary , who represents a seat centred on a prospective terminus of one of the branch lines ( Epsom and Ewell ) , announced Mike Gerrard would lead the Treasury 's required Independent Affordability Review , which is expected to conclude in the summer of 2018.
Crossrail 2