Section 138 of the Roads Act 1993 specifies a range of activities where approvals are required to be obtained from council.
Instances where a section 138 approval is required to:
(a) erect a structure or carry out a work in, on or over a public road, or (b) dig up or disturb the surface of a public road, or(c) remove or interfere with a structure, work or tree on a public road, or(d) pump water into a public road from any land adjoining the road, or(e) connect a road (whether public or private) to a classified road,
For the purposes of the above definitions carrying out work on a public road includes constructing a driveway and undertaking traffic control on a public road.