I went for a trip to the country on the weekend and came across something I have never seen before. On the Great Western highway between Lithgow and Bathurst there was a camera with a sign saying 'Average speed camera'. I saw one a Yetholme, between Lithgow and Bathurst, and a corresponding one at Raglan, just outside Bathurst about 25 kms past the first one. Does anyone know anything about average speed cameras? I was unaware they had been rolled out in NSW. I have heard it could be only for trucks, but it had me paranoid for the whole trip.