The first phase of improvements works at Cadgers Brae Interchange will begin later this month.
Motorists are being warned to expected significant disruption along Inchyra Road, Beancross Road and the A9 from Monday March 21, when work to install permanent traffic lights on the Interchange begins.
There'll also be new road surfacing laid, along with the creation of better street lighting and improved facilities for pedestrians, cyclists, and other non-motorised users.