00:00Sound pollution is the effect of exposure to the noise of the population and in particular the consequences for their well-being and their health.
00:18And today, in the mix of current vehicles, we consider that 80% of the noise emitted comes from the contact of road tires.
00:25To solve this problem inside the vehicle, we use sensors that allow active control.
00:30The principle is to inject a sound wave that will cancel the noise we are trying to reduce.
00:36Active control will smooth the spectrum and make the trip much less tiring.
00:41And so we asked ourselves the question of being able to value, even monetize, the signals that come from these sensors.
00:47And so we developed a box called APACHE.
00:50We are able, through these sensors, to come and look for the fine characteristics of the road.
00:56We transformed a Renault vehicle into a kind of road reading head.
01:00We are reading the acoustic information of the road, like a vinyl disc.
01:05The APACHE sensor is used to collect data, in particular vibration data, from the vehicle.
01:09The final product is to know exactly in what state the road is located, whether it is degraded or not.
01:15And this allows us to know at what sound level we are at when the vehicle passes.
01:20I use a cartography software that allows me to import population data,
01:24from establishments that receive public data, in particular schools, retirement homes, hospitals.
01:29This is where a partnership with the Noise Observer is really necessary.
01:33Because we have access to an additional database that is very relevant for our project.
01:37Noise Observer is the most developed noise observatory in Europe.
01:42It will be a reference for an innovative service.
01:45It is the territory of Saint-Quentin-en-Yvelines that was the first to do the experiment,
01:49where we produced the first maps of 400 km of road that were scanned with our system.
01:54We have demonstrations of interest from several cities in France and even abroad.
01:58Today, ADEME has calculated for 2021 the social cost of noise in France at more than 146 billion euros.
02:04The best cost-benefit ratio is working on the road.
02:07And Bruit Parif has documented that 1 euro invested on the road is 17 to 20 euros gained on the social cost of noise.
02:14We also provide information about the energy consumed when vehicles pass on this road.
02:19This allows them, in the end, to have a complete diagnosis,
02:22and to know exactly how much it will bring them to think about this road.
02:25We respond to an environmental problem.
02:27It is a virtuous circle.
02:28We have a technology that improves the acoustics inside our vehicles.
02:32And we allow communities to make the most just decisions.
02:35So, in fact, everyone wins in this.
02:37What really helped me make my decision to join Renault
02:41is precisely the fact that it has a direct impact on improving the quality of life of the inhabitants.
02:46My work means something, it means something, and it has an interest.
02:50The innovation we brought with the whole Noise Pollution approach
02:53required the integration of new skills.
02:56Fadila joined us.
02:57She really brought all her operational and technical know-how on the manipulation of geometric data.
03:04The culture of innovation at Renault is not to limit ourselves to a technology for technology.
03:10It has to provide a service to our customers.
03:12And here, in this case, we even went to an even greater perimeter
03:15since we are tackling a major societal problem, which is noise pollution.
03:18It is an innovation that we have patented, and today we are pioneers in this area.
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