Our environmental acoustics service deals with the assessment, management, and mitigation of noise in outdoor environments, both in urban and natural contexts, in compliance with Law 447/95 on noise pollution and current regional regulations.

Environmental Acoustics Services

  • Noise impact assessments according to Law 447/95: We analyze the impact of new infrastructure, industrial, and commercial projects on the surrounding sound environment, ensuring compliance with the national framework law on noise pollution.
  • Strategic noise mapping: We use advanced technologies to create detailed maps of noise levels in urban and industrial areas, in accordance with the European END (Environmental Noise Directive).
  • Municipal acoustic zoning plans: We support local authorities in defining acoustic classification plans for municipal areas in compliance with Law 447/95 and its implementing decrees.
  • Environmental noise monitoring: We carry out long-term monitoring campaigns to assess the evolution of environmental noise over time and verify compliance with limit values.
  • Noise barrier design: We develop tailored solutions to reduce noise propagation from road, railway, and industrial infrastructures.

Fields of Application

Road and railway noise:

  • Noise impact assessment of new transport infrastructures
  • Design of mitigation measures according to DPR 142/2004
  • Monitoring the effectiveness of existing noise barriers

Industrial noise:

  • Noise impact assessments of industrial plants
  • Verification of compliance with emission and immission limits
  • Design of acoustic remediation measures

Airport noise:

  • Studies on airport noise impact according to DM 31/10/1997
  • Mapping of noise contour curves
  • Evaluation of the effectiveness of noise mitigation procedures

Construction sites and temporary activities:

  • Preliminary noise impact assessments
  • Requests for exemptions from noise limits
  • On-site monitoring during works

Reference Standards

We ensure compliance with the main regulations:

  • Law 447/95 – Framework law on noise pollution
  • DPCM 14/11/1997 – Limit values for sound sources
  • DPCM 5/12/1997 – Passive acoustic requirements of buildings
  • DM 16/03/1998 – Measurement and survey techniques
  • DPR 142/2004 – Road traffic noise
  • Directive 2002/49/EC (END) – Environmental noise

Assessment Methodology

Our approach includes:

  • Sound level measurements using Class 1 instruments
  • Acoustic modeling with specialized software
  • Proprietary algorithms and specialized software for data analysis and noise mapping
  • Measurement uncertainty assessment

Instrumentation and Technologies

We use:

  • Class 1 integrating sound level meters (IEC 61672)
  • Long-term monitoring kits
  • Advanced acoustic modeling software
  • Meteorological stations
  • GIS systems for territorial mapping

Contact AC Acustica for environmental noise impact assessments and specialized consultancy in accordance with Law 447/95.