(1)The power conferred by an authorisation under section 48 shall be exercised by placing a traffic sign on the road concerned.
(2)A constable exercising the power conferred by an authorisation under section 48 may suspend a parking place.
(3)Where a parking place is suspended under subsection (2), the suspension shall be treated as a restriction imposed by virtue of section 48—
(a)for the purposes of section 99 of the [1984 c. 27.] Road Traffic Regulation Act 1984 (removal of vehicles illegally parked, &c.) and of any regulations in force under that section, and
(b)for the purposes of Articles 47 and 48 of the [S.I. 1997/276 (N.I. 2).] Road Traffic Regulation (Northern Ireland) Order 1997 (in relation to Northern Ireland).