The New Zealand Transport Agency advises motorists travelling this weekend across the Waikato and Bay of Plenty region to plan ahead and expect changeable weather conditions.
Bay of Plenty systems manager Rob Campbell said this was one of the busiest weekends on New Zealand roads.
He was urging drivers to take care, plan ahead and be prepared for heavy traffic.
"We are also expecting very changeable weather with rain warnings across the Waikato and Bay of Plenty region and high winds predicted on the Kaimai Range," Campbell said.
He said congestion and delays were inevitable in peak times, but if everyone left plenty of time for their journey, drove to the conditions and planned ahead before leaving home, the worst of the frustrations could be eased and everyone could concentrate on arriving safely at their destination.