Unit 10 Flashcards
Music Events
The Code of Practice on Environmental Noise Control at Concerts94 aims to give guidance on how such disturbance or annoyance can be minimised.
This Code of Practice was issued by the Noise Council in 1995, it has been used to enable adequatel yentertaining concerts to be held whilst keeping to a minimum the disturbance caused by noise.
Music Events - Noise Guidelines
The Code gives guidelines for acceptable Music Noise Levels (MNL) and recommended Noise Controlprocedures for those operating a music event.
- The MNL is the LAeq of the music noise at a particular location.
Acceptable Music Noise Levels (MNL) should not exceed the guidelines at 1 metre from the façade of anynoise sensitive premises for events held between the hours of 09.00 and 23.00.
Music event - noise control
The section on the Recommended Noise Control Procedure breaks down the approach into three stages
- Planning: prediction of the likely MNL, comparing this with the guidelines, monitoring the backgroundlevels and establishing licencing conditions with local authority.
- Pre-event: orientating the loudspeakers to minimise any disturbance and carrying out noise checks toestablish that the maximum MNL will meet the licence conditions.
- Event monitoring and control; Rapid response to any complaints, monitoring MNL at sensitivelocations and advising sound engineers of any breaches or near breaches of the licence noise limits.
Pubs and Clubs
The Environmental Health team of the local authority has a duty to investigate complaints and to take action if noise is considered to be a statutory noise nuisance.
Sources of noise include music, extract fans, shouting and vehicles.
Pubs and Clubs - Noise Control
Controls can be imposed on…
· volume of music,
· the operating hours of the venue,
· the operation of noisy machinery, and the
· opening of doors and windows.
The investigating officer will recommend controls according to the nature and seriousness of the problem.
The Noise Act 1996
For more objective measurement criteria, we can turn to the Noise Act 1996.
provides guidance to local authorities in England on the powers available to them to deal with night noise emanating from dwellings and licensed premises that exceed the “permitted level” of noise prescribed under the Noise Act 1996.
intended to provide an alternative means of addressing disturbances caused by excessive noise instead being dealt with if it was thought to create a statutory nuisance.
A local authority may investigate the complaint and may, as a result of the complaint, issue a warning notice.
Noise act warning notice
A warning notice may be served on the person responsible for the noise if the local authority is satisfied that thenoise would or might exceed the permitted level.
Failure to comply may result in an offence being committed.
-The offence is based on exceeding an objectively measured acoustic criteria The permitted A-weightedlevel is set at
- 34 dBA if the underlying level of noise is no more than 24 dBA,
- or 10 dB above the underlying A-weighted level of noise where this exceeds 24 dBA.
Clay Target Shooting
‘Clay Target Shooting: Guidance on the Control of Noise’ published by CIEH in 2003101 is the established guidance for this sport.
This document is concerned with the ways in which shooting noise can occur and the methods to minimise orprevent annoyance and intrusion.
It includes a recommended method for the measurement of noise and its subsequent rating that was produced by the Building Research Establishment, BRE.
Noise from Model Aircraft
There is a DOE approved ‘Code of Practice on Noise from Model Aircraft 1982’.
This COP covers the legal noise control powers available and provides
- operating guidelines;
- Use of mufflers;
- Maximum recommended noise limits;
- Times of operation;
- The numbers of model aircraft that should be operated simultaneously
- The use of noise barriers and separation distances.
Specifies the method of measurement of noise emitted by model aircraft.
Noise from Motorsport
Permanent Circuits
1996 UK Motor Sports Association (MSAUK) ‘Guidance Notes on Noise Control at Motor Sports Circuits’.
the guidance covers control of all noisy activities associated with a motorsports event such as the public-address system in addition to noise from the vehicles.
static noise testing of individual vehicles which is the noise control requirement of both car and motorcycle authorities.
It recommends the use of 𝐿𝐴𝑒𝑞,𝑇 for venue noise limits and that circuits adopt a positive noise management plan.
Oval track events
The ‘Code of Practice for the Control of Noise from Oval Motor Racing Circuits’ aims to control noise from shortoval raceways and is published by the National Society for Clean Air and Environmental Protection (NSCA).
The code seeks to control noise in the following two ways:
- By controlling noise from race cars and its attenuation by the fitting of standard exhaust silencers.
- Noise from other sources; the Code provides general advice on various techniques which can be used to control noise from the race site
Fireworks
The Fireworks Regulations 2004105 contain specific restrictions on the use and sale of fireworks in respect ofnoise i.e.
“Prohibition of supply of excessively loud category 3 fireworks
(1) No person shall supply, or offer or agree to supply, any category 3 firework which, when used, produces a maximum A-weighted impulse sound pressure level exceeding 120 decibels when measured inaccordance with paragraph (2) below.
(2) For the purposes of paragraph (1) above, the sound pressure level is to be measured—
- at a horizontal distance of fifteen metres from the testing point at a height of one metre above theground
- using a sound measuring device which conforms to Class 1 SLM
BS5228 Part 2 – Vibration
Detailed guidance on human response to vibration in buildings, to the need for protection of site workers from theeffects of vibration.
Peak Particle Velocity (PPV) is cited as the simplest indicator of both perceptibility and risk of damage to structures.
Vibration Dose Value (VDV) is cited as the appropriate measure to evaluate human exposure to vibration.
includes guidance on typical vibration levels, associated risks, empirical prediction and mitigation methods.
Common causes of vibration nuisance are piling and blasting.
what variables will the intensity of vibration at the point of interest will be a function of?
- energy per blow or cycle or blast overpressure
- distance between source and receiver
- ground conditions at the site, e.g. soft or hard
- location of water table
- soil–structure interaction, i.e. the nature of the connection between soil and structure being monitored
- construction of structure and location of measuring points, for example: on the soil surface; on abuilding foundation; or on an internal structural element.
BS 6472-1:2008
Guide to evaluation of human exposure to vibration in buildings. Vibration sources other than blasting’.
Describes the method of measuring and evaluating whether a vibration would cause adverse comment.
