NZTA will also be installing electronic signs to warn of vehicles turning in and out of the cafe, reshaping the pavement of the road into the café to reduce the steepness, and widening the left-turn slip lane for southbound traffic.
The crash last year happened mid-morning on October 19 as a van, bound for Taupo, turned across the road for a stop at the cafe and was struck by a truck and wine tanker as it veered to try to avoid the collision while also travelling towards Taupo.
NZTA has been been seeking public opinion on speeds on the highway and the possibility of reducng the limit on more than half the route, including Tarawera, from 100km/h to 80km/h. Submissions on the proposals closed last Sunday.
A young man said to have been the driver of the van has been charged in relation to the crash. He has not made a plea and is due to appear in Napier District Court next week.