He suggested the warning signs be made larger and placed on both sides of the road.
The topography of the area also created an illusion at the intersection, which gave it the appearance of veering right and downhill, Constable Mcintyre noted.
This was exacerbated by the information signs on the eastern side of State Highway 8 being offset from the centerline of State Highway 80.
Coroner D O Crerar intended to release a copy of the finding to the NZTA, in preparation for a possible recommendation for an investigation into the signage at the intersection.
He found that although Mr Taewook was, at the time of his death, a tourist visitor to New Zealand, there was no evidence that he was unfamiliar with local road conditions, nor was he driving negligently.
However, he noted that a lack of recognition of an obligation to comply with road rules or take into account road conditions may have contributed to the incident.