18.—(1) Schedule 4 (application of provisions of the principal Act) has effect.
(2) So far as consistent with the provisions of this Order and the Transport and Works Act 1992(1), and so far as any person exercising the powers conferred by this Order is a nominated undertaker for the purposes of any provision of the principal Act, this Order and the principal Act are to be construed as one.
(3) Without limitation on the scope of paragraph (2), in determining any application or request by the promoter to any body for an approval or consent under the provisions of the principal Act (including those provisions as applied by this Order), that body must have regard (so far as is relevant) to the combined effect of the works authorised by this Order and the works authorised by the principal Act for the purposes of the construction of which the promoter is the nominated undertaker.