Team OSOM,
I listen and read with increasing amazement and incredulity to the proposals for bushfire warnings. The insurmountable problem is to address those in peril and uninformed; the problem is that "the authority" has poor intelligence about the fire-front progress and does not know who is unaware of the danger, nor where they are. Broad-brush approaches like ABC regional radio and telephone network "broadcast" would all appear to be broad-brush with poor targetability.