You can check the studies, the state here in the USA that removed speed limits reduced traffic accidents.
When the speed limits were put back in, accidents increased again.
In my state, officials openly admit speed enforcement generates revenue. The figure was a significant proportion of the state budget.
It's not for safety, it's an indirect tax.
If you look at the hard data on accidents, the vast majority occur at low speeds.
I have yet to be at fault in an accident, but I have been hit multiple times. Each time it was at low speed. Each time it was due to a driver not paying attention.
As much as I hate to say it, if you consistently have accidents in a situation, a study might reveal WHY accidents occur there. If it were do to speed, all our police officers, ambulance drivers, firemen and race car drivers would all be dead by now.
As others have pointed out, I'm afraid the technical solution won't be to fine fast drivers who avoid accidents, but to change the circumstances encouraging accidents.
Well, everyone knows that in germany you can drive at unlimited speeds at some parts of the "Autobahn".. but recent tests in Austria and Italy, where they raised the maximum speed on a part of road to 150 Km/h (austria) and unlimited (italy), the accidents dramatically DECREASED.
Why ? well.. if you are driving jolly 120 Km/h ( regular speed limit in most countries here) and someone is passing you at 150 Km/h, you don't expect him to be driving this quickly and might misjudge when changing lanes thinking you have the room and time to do so.. when you KNOW that he could be driving that speed, cause it is allowed.. you will be a lot more carefull. The same goes for driving at higher speeds.. as someone who drives quite a lot in Germany, i can tell you that you are paying a lot more attention when driving 180 Km/h or faster, then when you are "cruising" at 120 Km/h fiddeling with your ipod, phone, whatever...
I agree with the majority here. If you really want to work towards a solution, marketing is probably going to work better then building speedcams without law enforcement standing behind you.You need sensibilisation.
A couple of things you could do:
work together with driving schools to inform new drivers of the dangers. Don't do this soft. For example: here in Belgium we had a famous emergency room doctor film a bunch of accidents caused by speeding, Driving under influance etc. They didn't only show the wrecked cars but also: victims being reanimated, limbs of people that were torn off in the accident, dead bodies etc.. They had a every high shock level and many parents and people protested this campaign with following results:
The campaign hit the local (and some international) media Over and over and over.. as long as the discussion and protest was going on ( = bonus coverage)
The protests went away when after a couple of years, we were seeing results being: A LOT less casualities with young drivers ( which the campaign was aimed against.. people between 18 and 21 which only just got their license and crashed due too speeding or something)
Another campaign can be directed towards the "already driving" people.. even there shock effects can work. And you can try to get them where it hurts: You could die, your kid could be killed or crippled at those speeds..etc.. try to get a feel of what would effect them.. cause simply saying "you could have an accident" doesn't do it.. you must SHOW them
and last but not least: get governement involvement.
The campaign for the young drivers was started privately but the organisation doing it, grew out to become a part of the governements traffic department. Get their attention, you can even "taunt" the government and law enforcement a bit in your campaigns (which happened here too) so the population will start to pressure them for doing something about it. once you get the first people paying attention and they start to notice and think: " why is our government not doing anything about this", it will start to lead a life on it's own...
when that is starting, THEN is the time to start talking about technologic solutions with traffic lights and speedcams.. cause before this, when in the law and mind of people these things are not official , they will be ignored resulting in an even worse situation than it already is..
Research is to see what everybody else has seen, and think what nobody else has thought.