The Paris ring-road carries one quarter of all Paris traffic and represents an important link between Paris and the surrounding towns. With over 100,000 people living along its 35 km, the ring-road is also one of the noisiest roads in Paris according to the noise maps produced by the city of Paris within the framework of the implementation of European directive 2002/49/EC. In order to better understand the reality of these nuisances and to complete the strategic maps of noise, Bruitparif carried out a large measurement campaign over one month in 2009. This campaign allowed the description of variations in noise over time, the improvement of knowledge on the relationship between noise and traffic conditions, and a focus on sudden noise events (car horns, and particularly noisy two-wheeled motor vehicles). Further studies were conducted in 2010/2011 in order to quantify the population exposed to noise above the threshold values along the ring-road and to study the potential impact of some solutions. The monitoring went on with the setting up of permanent measurement stations to follow the evolution of noise levels over time. The main results of these studies will be presented and discussed.
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