Re: It's not that he called himself an engineer
Exactly right. Traffic cameras have absolutely nothing to do with safety and everything to do with revenue generation. This is why most of them (in the US, at least) are run by for-profit corporations who issue tickets and give a cut to the government. These business have been caught shortening the yellow light to increase revenue and the fact that more wrecks occurred at those intersections was not their concern. Some states changed these tickets from misdemeanors to civil fines to avoid pesky things like courts and due process.