Speed limit in a built-up area
The default speed limit in built-up areas is 50km/h unless otherwise signed.
Speed limit outside a built-up area
The general speed limit outside built-up areas is 100km/h unless a sign indicates otherwise.
Speed limit on high-standard roads outside built-up areas
Some high-quality roads allow up to 110km/h, but only where signs indicate it.
Speed limit in a shared zone
Shared zones require reduced speed to ensure safety for pedestrians and other users.
Speed limit for heavy vehicles over 12 tonnes GVM
Regardless of road limits, heavy vehicles must not exceed 100km/h.
Speed limit for buses over 5 tonnes GVM
Buses over 5 tonnes GVM are restricted to 100km/h even if signs allow more.
Speeding when overtaking
You must not exceed the posted speed limit even when overtaking another vehicle.
Can you legally exceed the speed limit?
It is illegal to exceed the posted speed limit at any time, including overtaking.
Speed limit sign indicates
Speed limit signs indicate the maximum permitted speed under good driving conditions.
School zone speed limits apply
School zone signs show specific times and lower limits—always read and obey them.
What a flashing electronic speed sign indicates
Flashing electronic signs signal that the speed limit has been temporarily changed.
Default speed in built-up areas with no signs posted
If there’s no sign in a built-up area, assume 50km/h until signed otherwise.
Area speed zone rules
A speed zone area sign indicates the limit for the entire marked zone until an ’End’ sign appears.
Variable speed zones can change based on
Variable limits apply based on traffic, time of day, or road conditions, shown electronically or on signs.