CANARINA:
CUSTIC:
CUSTIC Algorithms I:
The mathematical model that the software uses provides options to model noise emissions from a wide range of sources that might be present at industrial areas and urban areas. The basis of the model is the linear sound propagation equation, which is used to model simple point source emissions from vehicles, industries, aircrafts,… Emission sources are categorized into two basic types of sources: point sources and line sources. The algorithms used to model each of these source types are described in detail in the following sections. The CUSTIC software accepts meteorological data records to define the conditions for sound propagation. The model estimates the noise level for each source and receptor combination and calculates user-selected averages.
For an external source, the noise level equation is
Leq=LW-20Log(r)-11dB(A)
where r is the distance and LW the source power. However, for an industrial complex, the next equation will be used:
Leq=Li+10Log(S)-20Log(r)-14dB(A)
where S is the external surface and Li is the internal noise power.
Noise pollution map (colour gradient) produced by roads in decibels dB(A). The red colour represents high noise levels. We have 1000 vehicles per hour at a velocity of 50km/h.
Noise map for a road in ArcView that has been previously calculated by CUSTIC. The data have been exported in EXCEL and imported by ArcMap.
Noise map in the XZ plane for a line source. Colour gradient has been used.
ALGORITHMS: Algorithms I - Algorithms II
Canarina Algoritmos Numéricos, S.L.
Environmental software solutions
Canary Islands, Spain
e-mail: contact us
European network on pollution · European Union
Member of MAPO: European network on Marine Pollution.
Project funded by the European Commission
through the 6th Framework Programme for Research and Development
noise control
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CUSTIC: Noise pollution · CUSTIC - Software solutions - Software advantages - Price - DEMO download
DATA: Input data I - Input data II - Input data III - Input data IV - Input data V - Import and export data - Software commands
ALGORITHMS: Algorithms I - Algorithms II
CUSTIC software solutions: This application has been used in great number of environmental reports, noise courses and noise studies in the last years. We currently have users in more than 10 countries.
Leicestershire - for noise impact assessment - noise impact assessment - noise impacts - impact of noise on - impact on noise -
Northamptonshire - noise impact assesment - noise impact analysis - guidelines for noise impact - noise pollution picture
Aberdeen - sound noise - db impact - industrial noise control - wall impact - noise pollution picture
Armagh - noise floor - noise db - pressure impact
Bangor -noise study - noise meter - decibel noise - environmental compliance software
Bath - noise decibels - noise intensity - noise exposure - noise pollution picture
Belfast - impact report - global impact - assessment impact - noise pollution picture
Birmingham - noise reduce - noise damage - noise marine - environmental compliance software
Bradford - noise impact studies - impact noise reduction - floor impact noise
Brighton & Hove - noise health - project impact - noise water - noise pollution picture
Bristol - noise impact - for impact noise - impact noise -
Cambridge - - impact noise control - impact noise insulation - ceiling impact noise -
Canterbury - impact noise from - and impact noise - impact of noise -
Cardiff - noise impact study - traffic noise impact - impact noise detection - environmental compliance software
Carlisle - impact of phase noise on - noise and vibration impact assessment
Chester - impact of noise pollution - noise pollution impact - the impact of noise pollution -
Chichester - environmental noise impact - impact noise rating - impact of noise -
Newry - workplace noise assessment - noise impact assessments - noise assessment report -
Norwich - environmental impact assessment noise - guidelines for noise impact assessment - assessment and management of environmental noise -
Nottingham - acoustic noise test - acoustic noise testing - noise evaluation - environmental compliance software
Oxford - noise risk assessment - risk assessment for noise - noise assessment and control -
Peterborough - noise risk assessments - noise survey form - occupational noise assessment
Plymouth - report noise nuisance - noise measurement report - traffic noise report -
Portsmouth - report noise polution - consumer reports white noise - noise control report
Preston - how to report noise pollution - how to report noise - report a noise disturbance -
Ripon - consumer reports noise cancelling - report a noise complaint - report on noise pollution -
Salford - consumer reports noise cancelling headphones - noise assessment report - report noise violation -
Salisbury - airport noise report - noise monitoring report - noise survey report -
Sheffield - noise study report - how to report a noise complaint - noise level report -
St Albans - noise testing - testing for noise - noise assessment courses -
St David's - noise eia - noise assessments - eia report - environmental compliance software
Stirling - noise workplace - noise assessment - noise legislation -
Stoke-on-Trent - noise regulations - noise eis - eis report -
Sunderland - car road noise - how to reduce road noise -
Swansea - noise hazard - environmental report - noise effects -
Truro - noise epa - noise health - noise act - environmental compliance software
Wakefield - calculation of road traffic noise - tire road noise - reducing road noise -
Winchester - noise safety - noise pollution - noise hse - noise pollutants -
Staffordshire - tires road noise - excessive road noise -
Oxfordshire - road noise in cars - loud road noise - tyres road noise -
Leicestershire - road noise pollution - quiet road noise -
Derbyshire - noise ratings - road noise cars - road noise control -
Nottinghamshire - road noise db -
Derry - tyre road noise - road noise barriers - road noise barrier -
Dundee - block road noise - eliminate road noise - stop road noise -
Durham - road noise comparison -
Edinburgh - low road noise - least road noise - road noise insulation -
Ely - what causes road noise - road noise uk - road noise home
Copyright © 2005 Canarina Algoritmos Numéricos, Sociedad Limitada Unipersonal CIF-B38803110 registered for electronic commerce in sheet TF-35526, sheet 1 of the volume 2.671 of the General Section, First Registration, Registro de la Propiedad Número 2 y Marcantil of , Spain. All rights reserved.