I found this article written by a former state legislater (I am assuming he knows what he is talking about since he has worked within the govt) for help in understanding the steps in a disaster. Didn't research if Dem or Rep.
http://www.opinionjournal.com/extra/?id=110007219
Here is a link to a plan for Hurricane Evacuation
http://www.neworleans.com/index.php?...d=13&Itemid=43
I don't think this is the one he is referencing in the above article but haven't researched it yet.