Auckland Transport has received more than 11,000 submissions on its plan to lower speed limits on 10 percent of Auckland roads.

Feedback on its draft speed limit bylaw closed yesterday, a day when nine people died in three separate crashes cross the country.

Auckland Transport said there was a 78 percent increase in road deaths from 2014 to 2017, and reducing vehicle speed was one of the most effective ways of minimising road trauma.

The agency is analysing the submissions and expects to respond within the next three or four months.

Hamilton is also asking for feedback on its speed management plan, which would impose a 30km/h speed limit near schools and other busy places.

The consultation ends on 8 May.