(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 M1Road 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 M2Road Traffic Regulation (Northern Ireland) Order 1997 (in relation to Northern Ireland).