The Mayor's Ambient Noise Strategy - Greater London Authority

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The Mayor’s Ambient Noise Strategy Mayor of London 227 Table 10 Control at Source Mode Noise source Indicative Comments reduction dB(A) Road Power train 3 Tyres 2 Low noise road surfaces 3-4 Reduction of volume 3 per halving Other factors unchanged Reduction of speed 2 50 -> 30 mph, other factors unchanged Smoother driving up to 4 Rail Diesel power replaced by electric up to 20 Highest on full power sections of track Diesel power unit improvements up to 10 Highest on full power sections of track Grinding rails - normal degradation 3 Grinding rails - corrugated 5 Can be up to 20 in extreme cases Continuously Welded Rail 3 Optimised rail pads & tuned absorbers up to 5 Replacing cast iron tread brakes 8-10 Removing wheel flats 2 Locally, damping reverberation Replacing bridges with quieter designs up to 8 Table 11 Control of propagation Measure Indicative Comments reduction dB(A) Barrier just blocking line of sight 5 Locally (includes buildings) Barrier - theoretical maximum 20 Locally (includes buildings) Very low trackside barriers (railways) 2 Locally Tunnels 30+ Expensive, impractical in some locations Vegetation 1 per 10m* Tall, dense vegetation from ground to top layer * Over and above that provided by distance over soft ground alone (effectiveness is frequently overestimated, but the additional psychological benefit of obscuring source should not be overlooked). Table 12 Improving sound insulation Measure Indicative Comments reduction dB(A) Single -> thermal double glazing 5 - 8 Addition of secondary glazing to single 6 - 9 Existing windows to be in good repair Single - > acoustic double or triple glazing up to 20 Thick glass, large separation, good sealing
228 Mayor of London The Mayor’s Ambient Noise Strategy A4 who does what The following is a brief summary of who is responsible for taking action under relevant legislation in relation to different types of noise. Type of noise Responsible authority Main legislation Aircraft – policy DfT, Civil Aviation Authority Civil Aviation Act 1982 International and national regulations Noisy aircraft Airport operator for noise certification Airports DfT for Heathrow (designated airport) Civil Aviation Act 1982 Borough (London City, Biggin Hill) Town and Country Planning Act 1990 as amended MoD (Northolt) – planning conditions and agreements Construction sites Borough Control of Pollution Act 1974, sections 60 and 61 (reactive action or prior consent respectively) Disorderly licensed premises Police Criminal Justice and Police Act 2001, section 17/ Borough Licensing Act 2003/Anti-social Behaviour Act 2003 Dogs and other domestic animals Borough Environmental Protection Act 1990, Part III – statutory nuisance Entertainment noise Borough Environmental Protection Act 1990, Part III – statutory nuisance London Government Act 1963, section 52 and schedule 12 (as amended)/Licensing Act 2003 - licensing of premises and outdoor festivals Industry Environment Agency Integrated Pollution Prevention and Control Regulations 2000 Pollution Prevention and Control Act, 1999 (EA and Borough) Borough Environmental Protection Act 1990, Part III – statutory nuisance Control of Pollution Act 1974, Noise Abatement Zones (few operated) Town and Country Planning (Environmental Impact Assessment) (England & Wales) Regulations 1999 Intruder alarms Borough Environmental Protection Act 1990, Part III (buildings) – statutory nuisance London Local Authorities Act 1991 Loudspeaker in street Borough Noise and Statutory Nuisance Act 1993 Control of Pollution Act 1974 Machinery and equipment in Borough Noise and Statutory Nuisance street, incl. car repairs, car radios Act 1993 and lorry refrigerator units Motor vehicles DfT - regulation Road Traffic Act 1988 and motor cycles Road Vehicles (Type Approval) Regulations Police - enforcement Motor Vehicles (Construction and Use) Regulations 1986 (as amended) Police Reform Act 2001, sections 59 and 60
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March 2004 Sounder City The Mayor
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