One white background speed sign is current limit. Two is change of limit . Someone living in Mundaring contested their fine in court due to there only being one current speed and one change of speed sign. They won and everyone fined by the camera on that day had the fines reversed .

Was on the news or today tonight the other week. At the end of the day just do what the limit is where it is posted . Gives us a better standing than being all labeled as hoons . Cut loose at the drags, track days , testing days ,mini gymkhanas. The more we all go the more people will organize.

These days you speed and you will be walking everywhere just not worth it try arguing a speed sign with a copper . You will lose.