Some notable points, worth keeping in mind as the recriminations over Katrina fly back and forth (all emphasis added):
And so they have.
Residents who did not have personal transportation were unable to evacuate even if they wanted to. Approximately 120,000 residents (51,000 housing units x 2.4 persons/unit) do not have cars. A proposal made after the evacuation for Hurricane Georges to use public transit buses to assist in their evacuation out of the city was not implemented for Ivan. If Ivan had struck New Orleans directly it is estimated that 40-60,000 residents of the area would have perished…
To the Rescue
If a hurricane of a magnitude similar to Ivan does strike New Orleans, the challenges surrounding rescue efforts for those who have not evacuated will be different from other coastal areas….Regional and national rescue resources would have to respond as rapidly as possible and would require augmentation by local private vessels (assuming some survived). And, even with this help, federal and state governments have estimated that it would take 10 days to rescue all those stranded within the city…
Accepting the reality
Should this disaster become a reality, it would undoubtedly be one of the greatest disasters, if not the greatest, to hit the United States, with estimated costs exceeding 100 billion dollars. According to the American Red Cross, such an event could be even more devastating than a major earthquake in California. Survivors would have to endure conditions never before experienced in a North American disaster.