Advances regarding a new method for measuring the in situ noise abatement performance of urban noise reducing devices

Recent works regarding urban noise reducing devices have clearly shown the interest of such solutions in order to improve the sound quality in urban areas. To accompany the development of new products, it now becomes necessary to provide a technical regulatory framework for all stakeholders (manufacturers, city planners, consulting acoustical engineers, etc.) in order to guarantee quality, efficiency, and compliance with urban implementation requirements. This is the main purpose of the technical group CNEA-U, affiliated to the French commission for standardization of road traffic noise reducing devices. As part the technical group activities, a new method for measuring the in situ noise abatement performance of urban devices adapted to the urban context has been developed. The purpose of the method is to provide an indicator of the noise reduction effect of a particular product, measurable in situ but depending as little as possible on environmental effects. To reach this purpose, the parameters of the m...