Also - jack the damn fines into the stratosphere. If you knew you would get a ticket at $100 per MPH over the limit, you'd think twice about driving like an idiot.It's all about volume. They'd rather have 100 people pay fines of $100 than 10 people pay fines of $1000. It seems counter-intuitive, but would you bother fighting a $100 ticket for something you actually did? Now would you fight a $1000 ticket, even if you did it?
Don't believe me? Look at DUI (which conincidentally this thread started about). Every time someone wants to get tougher on DUI they do it by lowering the threshhold, not by toughening the punishment. The people who weren't deterred by the existing fine at 0.10 won't be deterred at 0.08. All the changes do is criminalize more behavior.
I started out thinking this was going to be a sarcastic post, but I realize the pattern is all too common. You don't prove you're tough on crime by being tougher on the existing criminals, you do it by making more people criminals.