The reactive nature of policies that people ignore

I got stuck in a traffic jam while passing through the famous and lovely town of Kennesaw, GA yesterday because of this unattentive truck driver trying to cross a raised railroad crossing:






















I wonder what part of the No Trucks sign he didn't understand. There's another sign out of the frame that warns truckers of a $1,000 fine if they cross there. Ouch!

This situation can be compared to the disconnected and reactive nature of most security policies. People ignore them and the repercussions are reactive in nature....two things that certainly aren't going to keep an incident from happening in the first place.