Sadly the school buses of New Orleans which should have been originally utilized by New Orleans Mayor Ray Nagin to evacuate the citizens of New Orleans remain underwater having never been used.
'The primary means of hurricane evacuation will be personal vehicles. School and municipal buses, government-owned vehicles and vehicles provided by volunteer agencies may be used to provide transportation for individuals who lack transportation and require assistance in evacuating"... - Louisiana Disaster Plan, pg 13, para 5 , dated 01/00
Perhaps if the Mayor would have done his job in the first place and familiarized himself with his city's own "Comprehensive Emergency Management Plan" lives could have been saved and the citizens all evacuated in an orderly manner. He might even have read the following -
"The person responsible for recognition of hurricane related preparation needs and for the issuance of an evacuation order