Do roads with traffic infringement cameras traffic lights/no entry roads etc have camera signs along the road?

In Britain, there are no requirements for any traffic signal cameras or speed camera to be signed.Do roads with traffic infringement cameras traffic lights/no entry roads etc have camera signs along the road?
There are road signs indicating the presence of cameras. The camera must be visible from 60 meters away. You will see the camera at the side of the road (with a big yellow board behind it) and short parallel lines across the lane indicate that there is a camera.



Speed limits are clearly posted. Usually they are 30mph in villages or towns, 50mph outside of town, and 70mph on the motorways..........