Speed cameras

[scumdog]

I have seen that sign in a few places in the States.

Bloody dangerous - try looking for a plane when doing 100mph, ferkin near ran off the road!

[BoristheBiter]

That's because they're hidden

Birkenhead to Birkdale. Take the journey and see if you see the hidden camera. The flash after you pass the obscuring branch might give you a clue

So it's a fixed camera that you know is there so how can it be hidden?

[anebv8]

seen a camera van over christmas with ladders on the roof,decked out like a painters van,nailed a car in front of me.