Acoustic zoning of Chioggia, road traffic noise measurements and mathematical model

The acoustic zoning of Chioggia (Venice) has been carried out taking into account the areas defined by the city plan, their densities of population, office buildings, shops, factories, and activities related to tourism. All the areas have been firstly assigned to the relevant acoustic classes according to the results of the statistical analysis. The resulting zoning has been verified by a survey and several changes occurred to be made in the acoustic classification. In addition road traffic noise monitoring has been carried out for an entire week in eighteen different sites, representative of different urban configurations, where sound levels (continuous equivalent LAeq and percentiles LN) were measured and, at the same time, number, type and speed of the passing vehicles were taken. In other thirty-four sites, depending on the previous ones as far as the traffic flow concerns, measurements have been performed for fifteen minutes. Traffic flow data have been correlated with the hourly LAeq levels in order to develop a mathematical model.