In France, more than 7 million people, or 12% of the population, are exposed to external noise levels that exceed the threshold of 65 dB (A) during the day and thus experience severe discomfort. Around three-quarters are residents of land transport infrastructures, especially road transport infrastructures.
Airports and rail infrastructures are obviously not to be outdone.
Wavely sensors allow for permanent monitoring of thresholds over time.
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