Holidaymakers travelling south of Auckland won't have access to some passing lanes over the holiday period.
The passing lanes on the main highway which connects Auckland to the Coromandel and Tauranga will close during peak times, says the New Zealand Transport Agency.
Acting system manager Ross I'Anson says the closures at Maramarua on State Highway 2 would make the road safer in heavy traffic.
"Slightly longer queues can be expected when the passing lanes are closed but there will be minimal impact to overall travel times.
"We ask drivers to be patient and allow extra time for their journey so that everybody gets home or to their destination safely."
The lane closures would help maintain a steady flow and prevent the risk of crashes as traffic merges at the end of the passing lane, he says.
In the 2017/2018 Christmas and New Year period, there were 11 fatal crashes and 329 reported injury crashes in New Zealand, Ministry of Transport figures show.
These crashes resulted in the deaths of eight drivers, three passengers and one motorbike rider.
NZTA says the passing lane for east-bound traffic on State Highway 2 near Mangatawhiri Rd would be closed on December 21 from midday until 10pm, December 22 from 9am-5pm and December 26 from 9am-5pm.
The passing lane near the Maramarua Golf Club, the Golf Rd off ramp and Koheroa Rd on ramp for west-bound traffic would be closed on January 5 from 10am-11pm and January 6 from 10am-11pm.
However, I'Anson said reopening of the lanes and ramps would depend on traffic flow.
If traffic stayed heavy, the closures would remain in place longer.
AVOIDING TRAFFIC QUEUES
The busiest time for eastbound traffic on SH2 Maramarua was December 22 from about 9am until midday, NZTA statistics showed.
December 26 between 10am and 1pm and December 27 from 9am until 5pm were also predicted to be busy.
Westbound on SH2 Maramarua, traffic was expected to be busy on January 1, 2, 3 and 6.