(1)  The speed-limit applying to a driver for a length of road to which a speed-limit sign applies is the number of kilometres per hour indicated by the number on the sign.

Note : Length of road is defined in the dictionary.

(2)  However, if the number on the speed-limit sign is over 100 and the driver is driving a bus with a GVM over 5 tonnes, or another vehicle with a GVM over 12 tonnes, the speed-limit applying to the driver for the length of road is 100 kilometres per hour.

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 of the Commonwealth.

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.

(3)  A speed-limit sign on a road applies to the length of road beginning at the sign and ending at the nearest of the following:

(a) a speed-limit sign on the road with a different number on the sign;

(b) an end speed-limit sign or speed derestriction sign on the road;

(c) if the road ends at a T-intersection or dead end – the end of the road.

Note 1 : T-intersection is defined in the dictionary.

Note 2 : Rule 322(1) and (2) deal with the meaning of a traffic sign on a road.

Speed-limit signs

Speed-limit sign (Standard sign)

Speed-limit sign (Variable illuminated message sign)

Other signs

End speed-limit sign

Speed derestriction sign

Note 1 for diagrams : There is another permitted version of the speed-limit sign and the end speed-limit sign – see the diagrams in Schedule 3 .

Note 2 for diagrams : A speed-limit sign or end speed-limit sign may have a different number on the sign – see rule 316(4) .