3U.K.Before carrying out any work for the construction or maintenance of any part of the works authorised by this Act which will involve interference with a highway, or the traffic in any highway, or before temporarily stopping up any highway, the appropriate authority shall consult the highway authority—
(a)as to the time when the work shall be commenced, and as to the extent of the surface of the highway which it may be reasonably necessary for the appropriate authority to occupy, or the nature of the interference which may be caused to traffic in the carrying out of the work, or as to the time during which, and the extent to which, the highway shall be stopped up (as the case may be); and
(b)as to the conditions under which the work shall be carried out or the highway shall be stopped up (as the case may be);
so as to reduce so far as possible inconvenience to the public and to ensure the safety of the public.