20—Obeying the speed limit
A driver must not drive at a speed over the speed limit applying to the driver
for the length of road where the driver is driving.
The rules about speed limits are as follows:
21—speed limit where a speed limit sign applies
22—speed limit in a speed limited area
23—speed limit in a school zone
24—speed limit in a shared zone
25—speed limit elsewhere.
"Road" includes a road-related area—see rule 11(2).
"Length" of road includes a marked lane, a part of a marked lane, or another
part of a length of road—see the definition in the dictionary.
Part 20 Division 2 deals with the way in which a traffic sign applies to a
length of road. Part 20 Division 3 deals with the way in which the traffic
sign applies to drivers driving on the length of road.