• Dunedin light traffic fell 78.6 per cent and heavy traffic 68.2 per cent when comparing Friday to the previous week.
Current as of Friday, March 27, the data was provided by the NZTA. It was not representative of traffic volume in each region.
The data was sourced from Waka Kotahi New Zealand Transport TMS data and the light and heavy traffic volumes were split using TMS data.
Meanwhile, in general, both Auckland and Hamilton traffic was down 35 per cent when compared to 2019.
Wellington traffic decreased 46.7 per cent, the biggest of all cities. Dunedin followed with a 45.6 per cent decrease and Christchurch was down 40.6 per cent.
On Monday, it was revealed the number of kilometres driven on Auckland's usually busy motorways fell by just under a quarter.
"The increases shown in the first week of March are to be expected as year-on-year growth," NZTA spokesman Darryl Walker said last week.
"But the third week of the month shows a significant change, and that's likely to accelerate once Covid-19 Level 4 lockdown takes effect over the weekend and next week."
Today marked the seventh day of lockdown in New Zealand, which was set to continue for another three weeks.
However, while the lockdown was only set in place for four weeks when announced last week, it could continue for longer if it was unsafe to end it.