approx 6000
The Department for Transport guidelines suggest that speed/safety cameras should be yellow however (as of April 2007) this is no longer a legal requirement.
Speed cameras is a shortened version for Speed Trap Cameras which are fixed or mobile cameras used by the police or councils to take pictures of vehicles travelling above the speed limit and thereby prosecute them for speeding
There are speed cameras now in most places that are busy intersections. Speed cameras are expensive and are usually not found in small towns or small municipalities.
As of this writing, there are a total of 526 red light or speed cameras present in the United States. These cameras are used in over 125 jurisdictions throughout the country for the purpose of ticketing speeding drivers.
they caclate your speed
They use radar.
No
Red light cameras are usually high speed video cameras that use ambient light.
An average of over 150,000 accidents are prevented each day.
"Most smart phones do carry high speed video cameras. However, some do not, you have to look at the specs on the cameras just to make sure you are not getting messed with."
over 20 km/h over the speed limit
Someone can find reviews for high speed digital cameras on Amazon where many models of camera have hundreds of customer reviews. One can also find reviews on 'Digital Camera Info'.