Oct 18, 2018
Lden of 60dB currently in use by TII.
Lden of 60dB currently in use by TII.
It is most interesting that National Roads Authority (NRA), now Transport Infrastructure Ireland (TII), suggest that an Lden of 60dB is a threshold that warrants noise mitigation for new road schemes. Interestingly however, the newer World Health Organisation guidance, titled ‘Environmental Noise Guidelines for the European Region (2018)’, strongly recommends reducing noise levels produced by…
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