Catastrophe coming -- nowhere to hide

Okay, so if we have a major catastrophe headed our way, most of us would be sitting ducks. A just released study gives the South Florida area a big fat F for our evacuation prowess. That's not very comforting, especially since I thought that we were supposed to have a well-rehearsed plan in case of hurricanes. Part of the problem, of course, is that we're hemmed in by the ocean on one side and the Everglades on the other.
Given our geographic limitations, what are we supposed to do? Build more roads out? Build better houses or storm/bomb shelters of some kind? Or maybe just move to some podunk town in the midwest where nothing happens and fewer people are fleeing disaster?