Power to deviate
8.—(1) In constructing or maintaining any of the scheduled works, the undertaker may—
(a)deviate laterally from the lines or situations shown on the works and land plans within the permanent limits relating to that work shown on those plans; and
(b)deviate vertically from the levels shown on the sections—
(i)to any extent not exceeding 3 metres upwards; and
(ii)to any extent downwards as may be necessary or expedient.
(2) In constructing or maintaining any work or part of a work shown on the works and land plans as being situated in a street and for which no limits of deviation are shown on those plans, the undertaker may deviate laterally within the boundaries of that street.
(3) The undertaker may, in constructing or maintaining the scheduled works, lay down—
(a)double lines of rails in place of single lines;
(b)single lines of rails in place of double lines;
(c)interlacing lines of rails in place of double or single lines; or
(d)double or single lines of rails in place of interlacing lines.
(4) The powers in paragraph (3) must not be exercised in the case of any authorised street tramway without the consent of the street authority, but such consent must not be unreasonably withheld.