Forecast bad weather over Labour Weekend has prompted police to warn drivers to take extra care on the roads, with driving conditions expected to be poor.
Six people died on the roads during Labour Weekend last year and 22 people were seriously injured.
National road policing manager Superintendant Carey Griffiths says loss of control caused by speed was the main reason for crashes.
He says alcohol also played a significant part, along with travelling too closely to other vehicles.
Mr Griffiths says all available officers will be out on the roads over the weekend because they want to get the injury rate down.
Police will be enforcing a lower tolerance for speeding of just 4km over the speed limit.
Mr Griffiths say he is in no doubt that the "zero-tolerance" approach will help save lives and reduce injuries.
He says there have previously been significant reductions in deaths and crashes when a speed threshold is enforced.
The highest recorded number of road deaths during a Labour Weekend was 16 in 1978.
The annual road toll stood at 202 on Friday, compared to 235 at the same time last year.