The conclusion is;
"The net result of years of speed cameras in
Britain and Australia is that road speeds have not
slowed signifi cantly, the downward trend in serious
accidents and fatalities has been almost totally lost,
hundreds of thousands of the safest drivers are
convicted each year and the goodwill between law
abiding citizens and the police is evaporating. In
the midst of all this, British and Australian State
governments are selling their speed campaigns as a
great success. Don’t believe it."
The pdf document is available at;
http://www.cis.org.au/policy/spr03/polspr03-1.pdf