There is something to be said for the idea that an emergency command center should be outside or at least on the edge of an the area to be controlled. This is rather like the rationale for storing off-site computer backups: If there is a disaster in the area in question, then the command center will probably remain intact and functional. If instead the disaster occurs right around the command center, then the normal means of control will probably be undamaged.
The stupidest move you could make would place the emergency command center right in the middle of the highest profile target in the city, in fact a location that was already attacked by terrorists for its symbolic value!
