This Standard specifies the traffic control devices to be used for the regulatory control of traffic speed and gives guidance on how speed limits should be determined and applied in various situations. The Standard does not cover temporary speed limits, the use of advisory speed signs, or speed limits applicable to certain classes of vehicle or driver.

NOTE: Speed matters excluded from this Standard are covered in the following references:

(a) Temporary speed limits at road works—AS 1742.3.

(b) Use of advisory speed signs—AS 1742.2.

(c) Limits applied by regulation to classes of vehicle or driver—State regulations and guidelines.

OBJECTIVE

The objective of this Standard is to provide road authorities throughout Australia with a set of uniform requirements and guidelines for the regulatory management of traffic speeds.