Аннотация
In this paper, the results of a study on the environmental noise pollution
of the city of Messina (Italy) are presented. The investigation has
included a preliminary classification of the territory in six acoustically
homogeneous areas according to Italian noise regulations. On the
basis of the resultant acoustic zoning 35 sites were selected for
an experimental survey. This last has been carried out by extensive
measurements of the main indexes for noise pollution (Leq, L1, L10,
L50, L90, L99) and of the traffic flow and composition. Results indicate
that: (a) main roads of Messina are overloaded by traffic flow during
day-time period and that in all the examined sites daily average
sound levels due to road traffic exceed environmental standards by
about 10 dBA; (b) environmental noise exhibits a certain degree of
spatial variance resulting primarily from the peculiar geo-morphological
structure of the town and from the transport infrastructure and (c)
more than 25% of residents should be highly disturbed by road traffic
noise.
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