Why would Traffic Cameras have the OPPOSITE of their intended effect?

http://www.dailymail.co.uk/news/article-鈥?/a>Why would Traffic Cameras have the OPPOSITE of their intended effect?
What is happening is that people get an expensive ticket once. They then vow to never have it happen again. When they see the yellow lite they are slamming on the brakes rather than judging the timing. We all have miss judged the timing on these lights. Think how it would be if you got a ticked everytime you missed it by a fraction of a second.