Komunikat Prasowy
• Renault Group and Bruitparif1 join forces to contribute to the acoustic improvement of roads in order to protect the health of local residents and reduce the environmental impact of vehicles.
• The aim is to map the actual acoustic condition of roads in Paris, its ring road and the Île-de-France region, using Apache2 technology developed and patented by Renault Group engineering.
• The detailed map of roads acoustics will give local authorities a better understanding of pavements conditions, enabling them to better monitor changes and optimize their rehabilitation strategies.
Boulogne-Billancourt and Saint-Denis, September 10th, 2024 - Following a convincing trial run in 2023 in the Saint-Quentin-en-Yvelines conurbation (France), Renault Group and Bruitparif have just signed a partnership agreement to establish the very first real map of the acoustic condition of roads in the Ile-de-France region
Equipped with sensors and the Apache device developed by Renault Group engineering, some thirty Megane E-Tech vehicles will be measuring the noise levels of the roads they travel on, to the nearest metre, over a 2-year period, as their owners move about.
The intensity of a road's noise reflects its state of deterioration, even if it is not visible. Between a recent pavement with good sound-absorbing properties and a dilapidated or severely degraded one, the rolling noise of a vehicle can vary by a factor of 1 to 10.
A deteriorating road also increases rolling resistance, and therefore energy consumption, CO2 emissions and pollutant particles from combustion-powered vehicles, as well as tire abrasion.
Having a detailed map of road acoustics will give local authorities a better understanding of the actual condition of the pavements under their responsibility and enable them to monitor progress.
With this information, previously unavailable in exhaustive form, they will be able to better define their road repair decisions and intervene in priority areas, thus contributing directly to the reduction of noise pollution from all road traffic and its impact on health.
Environmental benefits are not overlooked either, with reduced energy consumption and lower emissions (CO2, tire particles, etc.) from all vehicles.
This partnership with Bruitparif will provide invaluable assistance to towns and local authorities for whom the road repair strategy is a major challenge and an important part of their budget. Our Apache innovation shows that technology can actually help improve society. By taking an interest in non-traditional areas of the automotive industry, it is even possible to create new value chains for Renault Group – Thomas ANTOINE, Renault Group - Expert Leader Noise and et Vibration
Joining forces with Renault Group, and benefiting from its Apache technology, will enable us to significantly improve the accuracy and quality of the strategic noise maps we produce for the 14 Île-de-France conurbations responsible for implementing European Directive 2002/49/EC. They will enable us to identify sectors with deteriorated pavements, heavy traffic, a large number of local residents and/or the presence of schools, health establishments, etc., and which should therefore be considered by local authorities as priority sectors for pavement repairs – Olivier BLOND, Bruitparif President
Apache: technology at the service of health and the environment
Road traffic is the main cause of noise exposure in the Île-de-France region. It is estimated that one million inhabitants are exposed to levels exceeding the regulatory limit value for road noise (68 dBA Lden), and that 8.6 million live in areas where levels exceed the values recommended by the WHO (53 dBA Lden).
Generating sleep disturbance, daily discomfort and even increasing the risk of cardiovascular disease, road noise is thus responsible for an average loss of 6 months of healthy life per individual within the dense Paris region.
Until now, accurate measurement of the acoustic condition of a road could only be carried out by means of an on-board measuring device in a special vehicle with dedicated personnel, and also required the lane to be closed to traffic so as to avoid any noise other than the rolling noise of the measuring vehicle. Because of the cost involved and the associated logistical constraints, this type of technique is generally used on a limited basis, and cannot be envisaged on the scale of an entire road network.
With Apache technology, developed and patented by Renault Group engineers, the vehicle becomes a sensor. Measurements are taken automatically and simply in real traffic. The additional Apache box records the data collected and transmits it to a dedicated server. Post-processing of this information, combined with other data such as the frequency of use and sensitivity of the areas crossed (homes, hospitals, schools, etc.), will make it possible to draw up an exhaustive, real-life map of the acoustic condition of roads in the Ile-de-France region, to help local authorities with their road repair strategies.
Additional information :
- Renault Group Technologie Apache
- Bruitparif L’observatoire du bruit en Île-de-France
1 Bruiparif: Île-de-France (Paris region) noise observatory
2 Apache: Auscultation of the Acoustic Profile of Pavements and their Energy Efficiency
(in French: Auscultation du Profil Acoustique des CHaussées et de leur Efficacité énergétique)
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