A10 Southbound Towards A406

There's a speed camera which is one of the older gatso's, heading south on the A10 just before you reach the A406. I was driving down there recently and a police van was fast approaching me from behind. I pulled into the left lane and I was doing about 40mph. The police van overtook me just before we went past the camera and It must have been doing at least 55mph and the camera didn't flash. A useful one to remember! ;-)