Social assessment of environmental lfn
Env. Protection Agency Rotterdam
Wednesday 3 june, 2015, 15:00 - 15:20
0.9 Athens (118)
In order to assess lfn properly it is necessary to have knowledge of lfn, of the social impact and of the legal and juridical possibilities. In many cases to what limit a certain level of lfn is acceptable is questioned. A quite common aid to assess lfn are curves in which levels (dB's) are related to frequencies (Hz). In cases in question hearing thresholds, degree of annoyance and the used 'normal' A-weighted standards have to be regarded. In the Netherlands there are some lfn-curves. This article elucidates how one of those curves is constructed. The first development of that 'EPA-curve' took place in 1998. Revised in 2011. Following those principles of construction enable to fit lfn-curves to an acoustical climate one wishes to be admissible. Examples of factors are: degree (percentage) of coverage, emphasis on protection of certain people or on the living space, the A- and C-weighted general limits, avoiding 'all' noise or even granting wishes about quietness.
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