Speed limits around the country are coming under the microscope, with police suggesting they need to be lowered quite significantly.
In a briefing to the minister seen by Stuff, National road policing manager Steve Greally says 80km/h should be the maximum for undivided roads.
Police say unsafe speed limits contribute to 60 percent of all deaths and serious injuries from road accidents.
But the AA says it doesn't favour a blanket approach. It's Road Safety Spokesperson Dylan Thomsen told Nick Truebridge speed limit reductions need to be combined with roading maintenance.
