Scottish Government transport minister Derek Mackay has said average speed cameras could be introduced on more roads in Scotland after the success of their introduction on the A9.
Mr Mackay said plans for the average speed cameras on the A9 were initially controversial but they have “turned the corner on public opinion” since their introduction four months ago.
Currently average speed cameras are only used on the A9 and the A77 in Ayrshire.
Mr Mackay has refused to say which routes would be considered for average speed cameras but said any decisions would be made on a “case-by-case” basis.
The system, which cost £3 million, has been credited with cutting the number of people speeding on the A9 and a subsequent fall in the number of accidents.
Mr Mackay said: “The A9 has been the litmus test for the effectiveness of average speed cameras.
“The A9 shows public opinion has changed. The principle is now far better established.
“Average speed cameras, if deployed in the right places, can help assist road safety. Extra journey times are a price worth paying for a safer route.”
However, critics of the scheme, including Chief Secretary to the Treasure Danny Alexander, remain unconvinced.
“Dualling the A9 is by the far the best way to make the A9 safer, something the SNP has utterly failed to do after eight years in power,” said Mr Alexander.