DB Noise Control at Residents Brochure

?????????? ????? ?????????? ? ? ? ??? ? ???? ???? ?????? ?? ? ???? ????? ??? ??? ????????? ???? ??? ??? ????? ???? ??? ???? ? ?????? ????????????? ????? ? ???????????????????????????????????????????????????? Order dated on 23 january 1997?About restricting of the environment noise?emitted by the classified installations?for environmental protection?Limit noise values Industrial?property?Property ?line?Regulated emergence?area?LAeqT = Environnmental noise level?with running installation.?Émergence = LAeqT - background?Noise level with installation at shut-down?Or background noise level.?At the?resident’s?Interior + yard, garden, terrace?Acceptable emergence for the period from 7 h 00 to 22 h 00 except Sunday and bank holidays 6 dB (A)?5 dB (A)?Acceptable emergence for the period from 22 h 00 to 7 h 00 Sunday and bank holidays included 4 dB (A)?3 dB (A)?Level < 70 dB(A) a day? < 60 dB(A) night?(except if the background ?noise exceeds these limits)?Environnmental noise level existing in regulated emergence areas (building noise included Upper than 35 dB(A) and Lower or equal to 45 dB(A) Upper than 45 dB (A)?Constructible?zones?Except craft or industrial?activities??????????? ????????? ?????????? ? ????????? ????????????? ????????????? ?????????? ??????????????? ????????? ?????????? ????????????????????????????? ???????? ????""##""$$""%%&&''??$$????(((())""??''?????????????? ? ?? Analysis of the sound situation o Sectional map o Site conditions (emission and reception zone) ? Representative use periods o Typical activities o Specific activities The measuring time should take these 2 kinds of activities into account (sampling or continuous) ? Measuring points location o Resident o Property line ? Representative background noise level The background noise measuring has to be realized on the base horizontal equivalent. Environment noise measurement MEASURING PLAN Continuous measuring Sampling measuring made by the operator Random sampling measuring LAeq, LA50 & LA90 for each measuring point non conformity List of sound events and classification of their contribution to define the major actions to reduce noise. Periodic following-up EESSTTIIMMAATTEEDD AACCOOUUSSTTIICCSS Prescribed objectives Background noise Ambient noise Emergence = background noise – ambient noise Example : Noise maps ? ??????**))?? ????????))?? ??))????''?????&&????(())""((??))??++??$$&&??????????##??????????????))????&&##??????,,?????'?????????????? ???????????????? ???? ??????????????????? ??????????? ???????????????? ???????????????? ????? ??????????? ??????????? ???????????????????????? ?????????????? ????????????? ?????? ???????? ???????????????????? ????? ?????????? ????????????? ?????????????? ???? ???-????.??? ????????????????? ????"? ? ??#?????$???? ???????????&????????????????? ???????? ?????? ??????%? ????????????? ?? ?$????? &'()*????? ????????? ????+????? ??????%? ??????????????????&????????????????? ?????????????????????? ??????????? ?????????????$????????? ,?? ???????????? ???????? ?????????? ??????%? ????????????????? "???? ?????#?????-? ????? ????????%? ????????????? ???????? ??????%? ??????????????????.??/?????? ?????"???????$??#???????????? ??????????????. ??0?? ????????%? ????? ?"?? ???? ? ??? ?????????? ????????? ????????%? ??11??? ???????-? ????? ????????%? ?????? ???????"?????????? ????????%? ?????