"All this money spent" - How much money is being spent?

Perhaps the authorities time will be better spent if technology like this can be utilized to effectively ticket speeders, and they can be out doing other things. You can get ticketed by running a red light. Maybe now identifying speeders is just as reliable as catching red-light-runners? The tests will have to prove that.

I'm sure the money gets made back between the tickets issued/paid and paying cops to do other things while speeders are still getting penalized. But without knowing how much they're actually spending to do this, can't really say.

My city has 10-15 intersection cameras and 5 mobile vans. They are said to reduce accidents. They also cost the city $500,000.00/year over and above the revenue generated.

Is this your resource: http://uk.news.yahoo.com/21/20100420/ttc-tests-on-hi-tech-speed-cameras-e1d36ba.html

here in they US they have electronic toll collections, that record where and when you entered the highway and when and where you exit. it would be much cheaper for them to calculate your average speed off of that, and write you a ticket if it's over the limit.

Just stop for lunch.

They're only there to catch criminals.

This would not be legally accepted in the U.S. unless it photographs the individual driver. These traffic attorneys would make a lot of money defending people against these tickets without really doing anything. "Reasonable doubt" would be the easiest defense.