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Summary: 0018-9162/04/$20.00 © 2004 IEEE September 2004 55
R E S E A R C H F E A T U R E
Published by the IEEE Computer Society
Designing an
Urban-Scale Auditory
Alert System
T
he high tides that periodically flood Venice,
locally known as acqua alta, are becoming
more serious due to recent changes in the
surrounding lagoon as well as atmospheric
conditions. Several days each year, tidal
waters cover many city streets and squares, disrupt-
ing the inhabitants' lives and snarling traffic. Major
floods, like the ones that struck Venice in 1966 and
2000, can inundate the city and paralyze activity.
Given the severity and increasing frequency of
tidal flooding, alerting the population promptly has
become imperative so that public officials, mer-
chants, and citizens can take appropriate measures.
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