Product category:
Acoustics, Noise and Vibration Control
News Release from: Hepworth Acoustics | Subject: Noise database
Edited by the Buildingtalk Editorial
Team on 28 June 2007
Hepworth latest noise database helps
quarries
Hepworth's latest noise database for Defra helps quarries evaluate the potential noise impact of their sites to take steps to mitigate the impact and assists their use of BS5228
Noise data for construction-type plant used on construction and open sites has until recently relied on data that was either gathered in the 1970s or is provided by equipment manufacturers In 2004 Defra commissioned Hepworth Acoustics to produce a database of noise emissions that was based on actual measurements from the plant in use
This article was originally published on Buildingtalk on 13 Mar 2006 at 8.00am (UK)
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The first part of the database, relating to construction, demolition, opencast coal sites and waste disposal sites was published in 2005 and can be viewed by on the website.
The final phase of the project encompasses quarries.
The report has recently been published by Defra and can be viewed on the website.
The central objective of the Construction Plant Noise Database is to provide accurate source data to enable operators of open sites, quarries and landfill operations to evaluate the potential impact of noise from the proposed operations.
The noise data is suitable for use with BS5228 but reflects current practice and plant.
To complete Phase 3, Hepworth Acoustics carried out surveys of quarries in Cheshire, Derbyshire and North Wales.
Approximately 300 individual measurements of plant noise were taken and the results are presented as un-weighted octave band sound pressure levels together with A-weighted activity sound pressure levels.
"The value of the study lies in the fact that where it is not practical to measure noise levels from the exact type of plant being used, this database can provide greater accuracy than relying on 'type test' noise emission data from manufacturers," explains Peter Hepworth of Hepworth Acoustics.
"It helps operators to evaluate the potential noise impact of their sites with more accurate data, thus enabling them to take appropriate steps to mitigate the impact and assisting their use of BS5228.".
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