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ENGINEERS UTILISE VEHICLE NOISE-CANCELLING DATA TO IDENTIFY ROAD NOISE AND REDUCE ENVIRONMENTAL IMPACT Lateral thinking by engineers at French car maker Renault is being used to make roads
less noisy. Many Renault vehicles now have noise-cancelling equipment installed, and Thomas Antoine, head of the noise and vibration technology group at the firm, realised that data from the
system could be used to identify which roads were noisiest. “Noise pollution is a major social and environmental problem,” he said. He convinced the company that his idea could be developed
and a master’s student at Cergy Paris University, Fadila Hrird, was recruited to work out how the data could be mapped. Her work not only shows noise levels, but also highlights where it
might have a negative impact on people’s lives, such as near schools, hospitals and houses. Read more: A guide to Crit’Air stickers in France REDUCED SOCIAL COSTS Bruitparif, an organisation
responsible for monitoring environmental noise in the Paris agglomeration, estimates that every €1 invested in making roads quieter represents a €17-€20 reduction in overall social costs.
The data also showed a clear link between noise from roads and increased fuel consumption. Bruitparif said that refurbishing the Paris périphérique would cut noise levels by four and become
a carbon neutral project in three-and-a-half years by saving 16,000 tonnes of CO2 annually from better vehicle fuel consumption. Read more: Paris mairie publishes first results from ring
road speed drop to 50 km/h