Long-awaited flashing advance-warning signs are set to be installed at the intersection of Ballantyne and Riverbank Rds on Monday.
Mount Barker Residents Association chairman Jerry Rowley described it as Wanaka's worst intersection and proposed the idea of installing the warning signs to the council earlier this year.
In March, a motorist failed to give way at the intersection and caused a three-car pile-up.
The signs use LED lights and movement detection sensors to alert drivers to upcoming stop signs.
They were trialled at intersections in Canterbury last year where several fatal crashes had occurred.
