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NZTA principal project manager Brendon French said so far they have heard from 30 people who are finding the new motorway louder than expected. “Many of these people were not aware that the low noise asphalt will not be applied until spring 2021, probably October, once the chip seal has had a chance to bed in. “We expect the low noise asphalt to make a significant difference.”
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Some of the first cars head down the new motorway in December. Congestion has also been an issue, with cars backed up along Cranford St in morning peak traffic. French said NZTA has been working closely with the council to manage traffic flow south of the new motorway.