In section 10 of the Roads (Scotland) Act 1984 (under which a special road provided by the Secretary of State becomes a trunk road), after subsection (2) there shall be inserted—

“(3)

Subsections (1) and (2) above shall have effect subject to any provision of the scheme under section 7 of this Act directing that the special road in question or any part of it shall not be a trunk road; but any such provision shall not affect the power of the Secretary of State to make an order under section 5(2)(a) of this Act with respect to the special road or part.”.