Not all cameras are static in europe, this is were these type of systems fall down. Having a subscription to some service that lists were they are and warns you and is updated by you or somebody else who pays a subscription is ok if you like to speed about on dynamic routes. Though anybody who travels the sameish journey a few times will soon know were and when to be mindful of traffic camera's.

I often see policemen with handheld speed kit and mobile camera units, most councils in even have cars with a periscope camera ontop that drive around automaticly processing so many driving violations its just to stressful to drive. But welcome to the UK/Europe and do have a nice stay as we are watching you.