Acoustic Mapping - Milano Serravalle S.p.A. highways Province of Milan (MI)

Noise mapping concerning the major road infrastructures managed by Milano Serravalle – Milano Tangenziali S.p.A

PROJECT DESCRIPTION

The study focuses on the development and implementation of a noise mapping procedure according to legislation (D.Lgs no. 194/2005) which transposes European Directive 2002/49 EC. The acoustic mapping concerns the major road infrastructures managed by Milano Serravalle – Milano Tangenziali S.p.A which have more than six million vehicles per year. Its elaboration followed all the requirements stated in sector-specific regulations and European guidelines.

PROJECT CHARACTERISTICS

Taking into account the normative references, the study was set in 5 wide stages:

1. Determination of the area: the size of the investigation area is not defined in advance but on the basis of:

  • The actual traffic flow;
  • Infrastructure typology (trenches, embankments etc…);
  • Territory topography;
  • Number and type of placed receptors.

2. Noise indicators and source emission spectra: it was evaluated the weighting associated with the equivalent noise levels as a function of the time of day (LDEN).

3. Orographic characterization of the involved areas: definition of the three-dimensional mesh concerning land and buildings.

4. Noise indicator calculation using simulation models: code implementation in accordance with the requirements of EU guidelines.

5. Collection of statistical data in accordance with Annex 4 and 6 of D.Lgs 194/05.

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