Special protection for railways etc.
4Without prejudice to the preceding provisions of this Schedule, nothing in the provisions of this Act shall authorise any person, except with the consent of the British Railways Board, London Regional Transport or, as the case may be, the railway company in question, to interfere with—
(a)any railway bridge or any other work connected with a railway; or
(b)the structure, use or maintenance of a railway or the traffic on it.