Motorists have been warned to expect disruption during a safety upgrade of the A85 Crieff Road in Perth.
The project to make improvements to traffic signals at two junctions will get underway next week. It follows resurfacing work on the same 1km stretch which was completed last month.
The new signals will have toucan crossings and improved vehicle detection technology which roads authority Bear Scotland said will reduce congestion.
The work will be carried out at nights in three phases from Monday, May 16, until Saturday June 4.
Bear’s north-west representative Eddie Ross said: “The installation of the new traffic signals at the two busy junctions on the A85 mark the final stages of our improvement programme for this section of Crieff Road, greatly enhancing traffic flows through the two locations.
“As we did during the resurfacing element of the works, we’ve taken steps to keep disruption to a minimum during the final leg of improvements by ensuring the route remains open at all times, carrying out the works overnight where possible and removing any traffic management whenever we can to limit the impact of the works.”
He added: “We thank motorists in advance for their patience while we carry out the installation of these new traffic lights.”