30Road or road related area may be closed temporarily to

30 Road or road related area may be closed temporarily to traffic (1) A police officer may— (a) close a road or road related area to traffic during a temporary obstruction or danger to traffic or for any temporary purpose; and (b) give directions to prevent the traffic of any vehicles, people or animals in or on a road or road related area closed to traffic under paragraph (a) or under the authority of another Act. (2) A person must not, without reasonable excuse, contravene a direction of a police officer under this section.