NZ Transport Agency Waka Kotahi (NZTA) was yesterday unable to supply any details about the trial other than confirm one was planned.
One of the cameras is just south of Allanton, south of Dunedin, and the other is at Waihola.
Speculation has been rife about the purpose of two cameras.
Trialled previously in Auckland, point-to-point cameras calculate a vehicle’s average speed between two points.
The cameras take an image and capture the time of vehicles entering and exiting the measurement zone.
They use automated number-plate recognition to identify vehicles and track their travel time between the camera locations.
The aim is to reduce speeds along a stretch of road, rather than at a single point.
AA Otago district council chairman Malcolm Budd, of Dunedin, said he was unaware if the cameras were being used to survey speeds or for enforcement, although it was "usually something you hear through the AA that they’re doing something like that".
"Anything that’s going to save lives and serious crashes is certainly welcome by the AA but it’d be quite helpful if people actually knew what was going on."
Mr Budd said he was unsure how effective point-to-point cameras would be over the 15km stretch between Allanton and Waihola.
"In the past, long weekends particularly, there has been a lot of particularly serious accidents on that Waihola stretch.
"But you’d think if they were trying to eliminate serious accidents and fatalities, that they’d perhaps put a sign up saying that they are actually speed cameras, to make people aware that speed is being monitored."
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