21—Speed limit where a speed limit sign applies
(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 (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.
(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).