Somebody posted this on SV650 forum, thought you might like to see it
Drivers' Association says speed cameras cost lives
THE ASSOCIATION of British Drivers claims that since revenue-generating speed cameras started proliferating, road deaths have reached over 5,000.
It says that government statistics show that as the numbers of speed cameras soared from 1993 onwards, the downward trend in road deaths that had existed for decades was almost completely lost. Had the former trend (a year on year 6% decrease in fatalities) continued, about 5500 people that have died on the roads in the last decade would be alive today.
The Associations claims that drivers who would normally be looking for potential hazards now have to split their attention and concentrate on spotting speed cameras and watching their speedometers.
At the same time uninsured, drunk and dangerous drivers now enjoy a greatly reduced chance of being apprehended as traffic police are switched to other duties. Further evidence of this is provided by the steady reduction in those apprehended for careless, dangerous and drunken driving from 232,000 in 1990 to 144,000 in 2000, a decrease of 37% in absolute terms, and a decrease of over 45% when increased traffic is allowed for.
Police, magistrates, and local councils, have always sought to justify cameras by claiming to save lives.
The usual basis for this claim, says the Association is that in locations where cameras are installed, the number of accidents reduces in the period immediately following their installation. What the partnerships invariably fail to acknowledge is that they place cameras at locations where there have been unusually high numbers of accidents in the three year period preceding the camera installation, and where accident numbers would probably have reduced by a simple process of chance.
This effect is extremely well understood, says the ABD and is known to statisticians as "regression to the mean" - the tendency for unusually high numbers of crashes to occur from time to time but not to be repeated year in and year out.
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