There's a fixed camera on the A40 between Burford and Witney which you approach from a gentle right hander. A few weeks back there was a camera van sitting underneath the fixed camera catching drivers as they approached - usual thing of people being aware of the site and only slowing down for the camera itself. Apparantly it proved quite a cash cow.
That said I've seen so many accidents on that stretch of road that I'n not objecting.