7(1)The Secretary of State may direct a traffic authority to revoke a traffic regulation order made by the authority in pursuance of a direction under paragraph 4.U.K.
(2)The Secretary of State may direct a traffic authority to vary a traffic regulation order made by the authority in pursuance of a direction under paragraph 4, where—
(a)the Secretary of State considers that the variation is—
(i)necessary for the purposes of the timely, efficient and cost-effective construction of the works authorised by this Act, and
(ii)reasonable in the circumstances, or
(b)the effect of the variation is to remove or relax a restriction imposed by the order on the use of any road.