There will be no warning signs to alert motorists about new mobile phone detection cameras to be rolled out across NSW.

In a world-first, the cameras which can detect mobile phone use will be introduced in 45 locations by the end of 2019.

The new technology takes images of drivers in their vehicles before running it through a mobile phone detection software. A human eye then confirms if an offence has been committed.

Roads Minister Andrew Constance tells John Stanley although people can check online where the cameras are located, there won’t be any warnings on the roads.

“Because this is as dangerous as drink driving, we’re not going to disclose with warning signs that you’re about to be picked up by the camera.

“We need everyone to change their behaviour and the element of surprise, like with the random breath testing, is the best way to go.”

Click PLAY below to hear the full interview

But Peter Khoury from the NRMA says the cameras will be much more effective if they have warning signs.

“We want to stop [drivers] on the road, not three weeks later when they’re at home and get a fine in the mail.

“The cameras do the enforcement, the warning signs do the education.”

Click PLAY below to hear the full interview