There is a grand total of seven speed cameras in the entire county of Flintshire, plus I should mention the one that is right on the border with Cheshire that can only catch motorists heading in from Flintshire, anyone speeding there is a muppet as its a 60 limit just before a tight bend and a junction. All the cameras are clearly marked and all are positioned in accident black spots. There's only one that I would put into the slightly sneaky category being positioned just after a tight corner, but there are plenty of warning signs. There is a van as well which moves around certain locations, all published in the local newspapers plus of course any number of police vehicles including motorbikes and a few unmarked cars which mainly stick to the A55 trunk road. The speed cameras have also been joined by a battery of flashing speed warning signs just recently. I've no idea what sort of revenue the Flintshire cameras bring in, at least two of them are on roads that in all probabilty are only used by locals, I've never seen any of the seven flash....however, in the next county, the one by the football ground in Wrexham catches loads, it's the biggest earner in North Wales, I've seen it flash plenty of times although not at me .
You may be interested to know that the cameras in Oxfordshire were never fully turned off, although they were no longer issuing tickets they were still recording speeds and there was a 25% increase in the number of vehicles exceeding the speed limit . As others have said don't speed and you won't have a problem....
Pete