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Design Criteria for Public Emergency Warning Systems |
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multiple recipients
A Public Warning System by definition must reach multiple recipients;
the challenge is to reach only the appropriate recipients, as
efficiently as possible.
"Warnings are most effective when delivered to just the people at
risk. If people not at risk are warned, they will tend to ignore future
warnings. Thus, if tornado or flash-flood warnings, for example, are
issued for a county or larger region, but only a small percentage of
the people who receive the warning are ultimately affected, most people
conclude that such warnings are not likely to affect them." (Working
Group on Natural Disaster Information Systems - Subcommittee on Natural
Disaster Reduction 2000)
"...It is unknown how much time it will take staff members to input
this information. Providing not only the Website information but
also
the PCCOPS and media alerts could prove to be extremely time consuming
and may require additional personnel and resources." (Provost
2003)
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