South Australian Consolidated Regulations9A—Speed-limits applying to driving of road trains
(1) Despite anything
in Part 3 of the Rules (Speed-limits), a driver must not drive a road train on
any length of road at a speed exceeding 90 kilometres per hour.
Maximum penalty: $2 500.
(2) Despite anything
in Part 3 of the Rules (Speed-limits), a driver must not drive a road train at
a speed exceeding 40 kilometres per hour on a length of road in a built-up
area in Orroroo, Peterborough, Port Augusta or Whyalla.
Maximum penalty: $2 500.
(3) Nothing in this
regulation authorises the driving of a vehicle on a length of road at a speed
exceeding any lower speed-limit applying to the driver of the vehicle on that
length of road by virtue of the Rules or another law of the State.
(4) In this
regulation—
"road train" means a road train as defined in the Road Traffic (Mass and
Loading Requirements) Regulations 1999 that, including its load (if any),
is over 19 metres long.