Dozens of electronic road signs are being installed across Perth and Kinross as part of a £300,000 safety blitz.
The courteous vehicle-activated signs (VAS) thank drivers for sticking to the limit, or urge them to slow down.
Perth and Kinross Council struck a deal with Cumberland-based Coeval to install more than 40 signs over the next two years.
A further 24 areas will have existing signs upgraded.
The roll-out has been welcomed by Conservative councillor Angus Forbes, convener for environment and infrastructure. “VAS provides both a very clear message to motorists about safe driving and a level of reassurance for residents,” he said.
Flashing VAS are being installed at various locations in Aberfeldy, Almondbank, Crieff, Errol, Kinross and Pitlochry, among others.
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A budget of £150,000 a year has been made available for the scheme over the next two years.
The council said it was phasing out all of its temporary signs, in favour of the permanent versions.
Signs installed in rural areas, away from regular electricity supplies, will be solar powered.
Around 30 VAS popped up throughout the region during the previous financial year, many in response to requests from local residents who had raised concerns about road safety.
It comes as the local authority prepares to set up experimental 20mph limits to towns and villages.
The pilot zones will be created at Errol, Rattray, Aberfeldy, Kinneswood and Dalginross, Comrie.
Parts of Perth – Gannochy and Letham – are also being considered for the future.
The 18-month trial has been broadly welcomed, but was questioned by some in Coupar Angus where VAS will be installed on Dundee Road and Perth Road.
Michael Gallagher, who has been campaigning for increased road safety in the town, questioned why Coupar Angus was omitted from the 20mph trial after the town was earmarked for a similar project three years ago.
A council spokeswoman responded that the trial areas had been selected “to enable the council to gather as much information as possible” ahead of a possible revision of the area’s 20mph speed limit strategy.