17Revocation and variation of schemes and orders
(1)Any scheme or order made or confirmed by the Minister under this Act may be revoked or varied by a subsequent scheme or order so made or confirmed ; and subject to the provisions of this section any such revoking or varying scheme or order may make such consequential provisions as appear to the Minister to be expedient.
(2)Where a scheme under this Act is revoked by a subsequent scheme, any part of the special road which has been constructed before the date on which the revoking scheme comes into operation, and any road appropriated by or transferred to the special road authority before that date, shall cease on that date to be a special road within the meaning of this Act, but shall, where the special road is a trunk road or a county road, continue to be a trunk road or a county road, as the case may be.
(3)Where a scheme under this Act is varied by a subsequent scheme, the provisions of the last foregoing subsection shall apply in relation to any part of the special road which ceases to form part of the route of that road in consequence of the variation.
(4)Subject to the foregoing provisions of this section, the revocation or variation of a scheme under this Act shall not affect the validity of anything done in pursuance of the scheme before the date on which the revoking or varying scheme comes into force, or the validity of any order made under this Act before that date in connection with the special road to be provided under the scheme.