South Australian Current Regulations

AUSTRALIAN ROAD RULES - REG 25

25—Speed limit elsewhere

        (1)         If a speed limit sign does not apply to a length of road and the length of road is not in a speed limited area, school zone or shared zone, the speed limit applying to a driver for the length of road is the default speed limit.

Note—

"Length" of road is defined in the dictionary, "school zone" is defined in rule 23, "shared zone" is defined in rule 24, and "speed limited area" is defined in rule 22.

        (2)         The "default speed limit" applying to a driver for a length of road in a built-up area is 50 kilometres per hour.

Note—

"Built-up area" is defined in the dictionary.

        (3)         The "default speed limit" applying to a driver for any other length of road is—

            (a)         for a driver driving a bus with a GVM over 5 tonnes, or another vehicle with a GVM over 12 tonnes—100 kilometres per hour; or

            (b)         for any other driver—100 kilometres per hour or as otherwise provided under another law of this jurisdiction.

Note 1—

"Bus" and "GVM" are defined in the dictionary, and "vehicle" is defined in rule 15.

Note 2—

Five tonnes is specified for the definition of heavy omnibus in the Australian Design Rules issued under the Motor Vehicle Standards Act 1989 (Cth).

Note 3—

If the vehicle is an oversize or overmass vehicle, the vehicle may be restricted to a lower speed limit under another law of this jurisdiction.

Part 4—Making turns

Division 1—Left turns