It almost a year since the controversial average speed cameras along the A9 were installed and switched on for the first time.
The yellow cameras, introduced to reduce the number of deaths on the notorious road, were officially powered up October 28 last year in an effort to get motorists to think twice about their speed.
Figures released in April revealed that from January-March, the number of people caught speeding had quadrupled compared to the final three months of 2014.
In the first three months after the devices were switched on, 298 drivers were caught breaking the limit.
But the figure for the last three months soared to 1,466 – an increase of 385%.
And while casualty figures had reduced, deaths on the road have gone up.
The figures prompted campaigners to again challenge the Scottish Government’s claim the controversial “yellow vultures” will improve safety on the Inverness-Perth trunk road.
But transport chiefs insisted the £2.5million system was proving its worth and changing motorists’ behaviour for the better.
Number of deaths on A9 has increased since introduction of average speed cameras