Aucklanders face delays on the roads this weekend while a 'super weekend' of traffic work is carried out.
NZTA advices motorists travelling to Auckland Airport on State Highway 20A the Landing Drive roundabout will be affected.
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The work includes a traffic switch, excavation, installing ducts and pits for traffic signal, laying concrete pavement and asphalt surfacing.
"The 'Super Weekend' strategy is to achieve in four days and nights what would otherwise take several weeks, with the Verissimo Drive slip lane closed for the entire time," NZTA says.
NZTA says drivers should be patient, approach the area with caution, keep to the speed limit and stay in your lane.
"We recognise there will be an impact on traffic flows. The 'super weekend' will keep that disruption to the shortest possible timeframe," says the Transport Agency's senior manager project delivery, Chris Hunt.
"The team is working with Auckland Airport, Auckland Transport and the Auckland Traffic Operations Centre to minimise the effects, but travellers should allow extra time for journeys to and from the airport."
NZTA says road users should avoid State Highway 30a from 8am Friday morning and over the weekend. The roads around the Trade Central area are expected to be congested and people should expect delays.
SH 11 Paihia to Kawakawa, Northland has been also closed due to a significant slip in the Lemons Hill area.