The Transport Agency is leading research into measures to increase road safety in relation to tourists, Radio New Zealand reports.
Over the Queen's Birthday weekend, four of the five people killed on the roads apparently died as a result of driving errors by overseas visitors.
That has reignited calls for compulsory tests for tourists before they are allowed to drive in New Zealand.
The Transport Agency's research is being conducted in collaboration with the Police, ACC, local government leaders and the Ministry of Transport. It is looking specifically at crashes involving visiting drivers - whether from overseas or a different region in New Zealand.
The agency's safety manager Lisa Rossiter said one of the focuses of the research was the types of vehicles tourists were driving.
She said studies showed that in the South Island, half the visitors who rented campervans had never driven one before, so voluntary driver training may have to be introduced.
Rossiter said another solution being researched was road signage aimed at visiting drivers.