This Standard specifies the traffic control devices to be used for the regulatory control of traffic speed.
The Standard does not cover temporary speed limits or the use of advisory speed signs.
NOTE Speed matters excluded from this Standard are covered in the following references:
(a) Temporary speed limits at works on roads — AS 1742.3.
(b) Determination of advisory speeds and the use of supplementary plates — AS 1742.2.
(c) Unsigned limits applied by existing legislation to classes of vehicle or driver, e.g. National Heavy Vehicle Regulator and jurisdiction regulations and guidelines.
