The Mayor's Ambient Noise Strategy - Greater London Authority
The Mayor's Ambient Noise Strategy - Greater London Authority
The Mayor's Ambient Noise Strategy - Greater London Authority
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236 Mayor of <strong>London</strong><br />
<strong>The</strong> Mayor’s <strong>Ambient</strong> <strong>Noise</strong> <strong>Strategy</strong><br />
‘Railway Operations and the Environment: Environmental<br />
Guidance’ (Office of the Rail Regulator, March 1996) e.g. paragraph 2.3<br />
‘mitigation of noise nuisance will require measures to be taken by train<br />
operators, rolling stock companies, Railtrack (now Network Rail) and the<br />
infrastructure maintenance companies for (co-ordinated or joint actions) to<br />
be effective.’<br />
<strong>The</strong> Building Regulations, 2000 (as amended), Part E (2003)<br />
(Office of the Deputy Prime Minister) specifies sound insulation<br />
requirements in respect of both internal sound transmission and external<br />
noise. Some details of enforcement (‘Pre Completion Testing’ and/or<br />
‘Robust Standard Details’) are due to be determined in 2004.<br />
Building Bulletin 93 ‘<strong>The</strong> Acoustic Design of Schools’ (Department for<br />
Education and Skills, July 2003) provides guidance on required internal<br />
noise levels and sound insulation for new school buildings.<br />
Key Standards<br />
BS 4142: 1997 ‘Method of Rating Industrial <strong>Noise</strong> Affecting Mixed<br />
Residential and Industrial Areas’ provides guidance on assessing the<br />
likelihood of complaints about noise impact from industrial development.<br />
‘Rating levels’ of industrial sources are compared with existing<br />
background L A90<br />
noise levels. If it is not possible to predict levels at noisesensitive<br />
locations around the site, levels at a site boundary may be used.<br />
Where the rating level exceeds the background level by 10 dB or more, BS<br />
4142 states that complaints are likely. It states that a difference of around<br />
5 dB(A) is of marginal significance. <strong>The</strong> lower the value below 5 dB(A),<br />
the less is the likelihood that complaints will result and if the rating level<br />
is more than 10 dB below the background noise level, this is a positive<br />
indication that complaints are unlikely. <strong>The</strong> rating level of the noise is<br />
increased to take account of tones, whines or impulses in the audible<br />
noise, for example, from a compressor or transformer. BS 4142 is the<br />
subject of review.<br />
BS 5228: Parts 1, 2, 3 and 5: 1997; BS 5228-4: 1992: <strong>Noise</strong> and vibration<br />
control on construction and open sites. Provides a method for predicting<br />
construction site noise and several parts are Codes of Practice under the<br />
Control of Pollution Act, 1974.<br />
BS 6472:1992 Guide to evaluation of human exposure to vibration in<br />
buildings (1 Hz to 80 Hz)<br />
BS 8233: 1999 Code of Practice for Sound Insulation and <strong>Noise</strong><br />
Reduction for Buildings. It deals with control of noise from outside the