Waka Kotahi's defending its proposal for sweeping speed limit decreases on state highways across the country.
It says key areas include those where there are unprecedented road deaths and injuries, as well as a focus around schools and marae.
Road to Zero Portfolio Manager, Tara Macmillan told Mike Hosking setting safe and appropriate speeds is recognised globally as essential for all users.
She says it isn't the only improvement that needs to be made, and other changes could include more median barriers and rumble strips.
Consultation on these latest changes closes on December 12.
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