A single section of road in Carterton has been the scene of four crashes in a week.
Four drivers have escaped injury after crashing on the recently upgraded Kokotau/Ponatahi/Millars roads corner in Carterton, with three of the crashes occurring after new metal was laid on Tuesday to prevent the tar melting further.
Remedial work had been recently completed at the intersection after residents and truck drivers complained about the layout of the upgrade earlier this year.
Carterton District councillor and Roading Committee chairman Mike Ashby said since the upgrade there had been issues with tar melting "very quickly".
On Tuesday night a man rolled his ute as he turned into Millars Rd, Mr Ashby said, but was uninjured.