Business Secretary Vince Cable has said there is a "compelling case" to speed up the extension of the controversial HS2 high speed rail link to the cities of the north.
His intervention came as HS2 chairman Sir David Higgins prepared to outline his plan for an accelerated construction timetable while reducing the cost of the #50 billion infrastructure project.
Sir David, who will publish his report on later, will also issue an appeal to the main political parties to unite behind the scheme.
HS2 link requires too many compromises in terms of impacts on freight, passengers and the community in Camden, says Transport Secretary.
Despite pledging to find savings in the expensive High Speed 2 train line, the project's boss has failed to find significant financial cuts.