"Andreassen (1995) found that the installation of RLC's [red light cameras] at 41 sites studied did not result in any reduction of accidents at those sites. Further, he found no significant differences between crashes at RLC sites compared with signalised intersections in Melbourne generally."
Red Light Running Behaviour at Red Light Camera and Control Intersections
Monash University Accident Research Centre
http://www.general.monash.edu.au/muarc/rptsum/es73.htm
Be that as it may, the Victoria Police Traffic Camera Office prefer a 1988 report that says red light cameras reduce the number of casualties by 10.4%, saying "From these statistics it is clear that the introduction of red light cameras has been beneficial in reducing the number of collisions and casualties at controlled intersections"
http://home.vicnet.net.au/~tco/html/redlight.htm
As the police wouldn't mislead us about road safety or rely on outdated research to justify a red light camera program that doesn't contribute to road safety while earning profitable revenue, I guess poor old Andreassen got it wrong when he studied a mere 41 RLC sites and said they didn't work.
Isn't it amazing how every time I go outside the sources that are in favour of speed limits, speed cameras, and now red light cameras, there is well qualified and independent research to contradict them? I suppose that just goes to show that the police and politicians are a lot smarter than academics and independent research bodies who disagree with them. It's lucky the rest of the public doesn't get to hear about this, or people might start to think that the politicians and police are trying to pull the wool over our eyes.