Building Acoustics
Lyon, AURA

In Lyon, France's second-largest urban area, the density of the built fabric, the intensity of office and residential production (Confluence, Part-Dieu, Carré de Soie) and the refurbishment of the old stock concentrate the acoustic issues. The ring road, the railways, the tramway and the noise exposure plan of Lyon-Saint-Exupéry impose reinforced façade sound insulation, and the widespread use of heat pumps in the heart of the urban block exposes projects to neighbourhood disputes. The predictive acoustic study secures, from the design stage, airborne and impact sound insulation, equipment acoustics and the works completion certificate of Lyon projects.

In Lyon, urban density, the widespread use of outdoor heat pumps and neighbourhood noise nuisance make the acoustic study decisive: from the design stage, to size the sound insulation and avoid disputes at handover, then at acceptance, to certify NRA compliance and regulatory noise emergence.