Thread revive!!!
Went through a 30 towards a forward facing camera and was 'flashed' - looked down and i was doing approx 36mph - 38mph (bah!)
But there was also a stream of traffic in the opposite lane travelling in the other direction - was it me or one of them that is getting a ticket?!
(yes, i shouldn't have speeding)
ETA: Just street mapped it and it was one of these camers
http://www.speedcamerasuk.com/speed-camera-types/truvelo-speed-camera.jpg
always wanted to know as well to add to this is how to they catch you with headlights on from the front. Surly even if it was polorised it would still blur the plate?
Truvelo's don't flash...unless you have infra-red eyes?
As anyone tried fitting infra red bulbs to their car.
If I have an infra red cctv camera pointed at another camera it just goes white.
Would speed camera's react the same
They work on the Doppler effect. Doesn't matter whether you are moving toward them or away, it can calculate your speed and nick you.... And to answer your question, yes, they do nick you, I have have been done by one....
Do modern emergency vechicles have a way of stopping them firing as they pass by ? or are they simply not in use anymore and kept by the local partnership as a deterrent ? I heard an urban legend that a lot of cameras get switched off as they are no longer profitable to operate, but the partnership leave them up anyway.
Just to clarify, there are speed cameras which can catch you driving towards them, but not all of them - the standard gatsos are rear-facing only. The reason there are sometimes lines on both sides of the road is in case of people driving on the wrong side to avoid them.
Most cameras are still empty cases. The last region I heard figures for (from some years ago) was for Cambs, who had something like 130 sites and 2 actual cameras. The numbers may be wrong, but the idea is (AFAIK) true. The problem is the logistics of dealing with the pictures. Average speed cameras are similarly expensive, but here the problem is hiring the computing needed to crunch all the data: the system records everything, then sifts out the speeders. Another Cambs example: I've yet to hear of single person (first-hand, not "I had a mate") who has been done by the A14 camera system. Although speeding along there is hard most times of day.
Nowadays most actual catching of speeders is via the mobile cameras, which are cheaper to process and had a fair proportion of fixed costs (the civilians who operate them are council employees or contractors).
All this works, because the cases alone are reasonable effective deterrents.