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) in decibels dB(A) produced by roads. We have 1000 vehicles per hour at a velocity of 50km/h. The red colour represents high noise levels. 

noise control

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. Noise reports in Spain and England: noise control

Oxfordshire  - industrial noise control - noise control products - noise control materials -

Cambridge - noise and vibration control - control of noise - noise control regulations -

Canterbury -noise control system - noise control solutions - noise control laws -

Cardiff - noise control engineering - active noise control - noise control systems -

Carlisle - noise control regulation - noise control ordinance - acoustics and noise control -

Chester - remote control noise - noise pollution regulation and control rules 2000 -

Chichester - noise control services - control of noise pollution - noise control material - environmental noise control manual -

City of London - noise control in buildings - noise control barrier - office noise control

Coventry - environmental noise control - noise control act - noise pollution control -

Derby - noise control techniques - noise control guidelines - noise control policy -

Dundee - active noise control system - noise control law - enviro noise control -

Durham - outdoor noise control - airport noise control - noise control centre -

Edinburgh - office of noise abatement and control - noise control by law - noise control legislation -

Ely - residential noise control - how to control noise - active noise control systems -

Exeter - animal noise control - noise control panels - noise & vibration control -

Glasgow - noise control engineers - acoustic echo and noise control - dog noise control -

Gloucester - ways to control noise pollution - noise control curtains - traffic noise control -

Hereford - noise control insulation - active noise and vibration control - noise control solution

Inverness - noise control measures - acoustic noise control - passive noise control -

Kingston upon Hull - control of pollution act 1974 noise - construction noise control - noise control act of 1965 -

Lancaster - noise survey - noise assessment - acoustic solutions -

Norfolk  -   noise control by law - quiet zone noise control solutions - noise pollution regulation and control rules -

Lincolnshire  -  sound insulation - sound control - acoustic insulation -

Cumbria   - noise barriers - sound isolation - acoustic consultant - acoustic treatment -

Devon  - industrial noise - acoustics - sound barrier -

North Yorkshire   - noise and vibration - sound proof - controlled noise -

Bangor - noise control wall - engine noise control - noise pollution -

Bath - noise consultant - acoustic panels - noise insulation -

Birmingham - noise consultants - sound absorption - noise control -

Bradford - acoustic enclosures - soundproofing material - noise -

Brighton & Hove - noise reduction - soundproofing - soundproofing materials -

Bristol -acoustic testing - acoustic consultants - sound proofing material -

CUSTIC: CUSTIC software noise pollution modeling software   sound barriers · noise barriers   noise map   noise control   noise prediction   industrial noise   environmental impact software   noise solutions   aircraft noise   active noise control   noise road · noise assessment   train noise · construction noise   noise consultants   noise maps  3D and 2D