A good heads up on the camera on the other side of the road catching you.Another one is the overhead gantry's on M- ways if you are going along at 70 and see the sign ahead saying 60- or whatever, make sure you are doing the indicated speed when you pass under it. I saw a car get flashed at the first gantry with the 60 sign lit up. I say this because when I am in the car and see the 60 sign I don't usually brake but just let off the gas and let the car slow naturally so I am maybe doing still doing 65 -66 when I pass under but very shortly after I will be at 60, but will from now on make sure I am at the correct speed as I pass under.
The only person I've ever seen going through those variables observing the speed limit is myself.
In my experience virtually no one makes any attempt to slow down to the displayed speed. Maybe the 40mph ones a bit, but not the others.
I'd always assumed that they know something I don't.
Normally when you take you're foot of the gas, the bloke behind nearly runs into the back of you before swerving into the next lane in order to proceed as normal.
Just following the '..assumed that they know something I don't' - two years ago the A2 out of London was fitted with average speed cameras and still, two years later, I get past by both cars and bikes doing a whole heap more than the 50 limit?
Ditto the gantry variables on the M25 - it's like me and one Nissan Micra slow to the correct speed while every Merc and his bastad BMW scream passed, apparently knowing something I don't... ?%*!