Software CUSTIC: noise solutions

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Solutions

Algorithm II · software · noise solutions

Roads:

In a road case, we shall consider several points. We shall consider a minimum number of 1000 vehicles per hour N with a 50km/h minimum velocity (100km/h is the maximum velocity). Then we have a 68 dB(A) noise level at 10m from a lineal road (infinity length). The noise level will be

Leq=68dB(A)+30Log(v/50)+10Log(N/1000)-10Log(r/10)

in the lineal (infinite) road case.

In the curved road case, the program considers a finite element method of calculation. Each small size of road contributes to the total noise level. Each contribution will be given by

Li=-10Log(a/180)

being a the angle of the small road size(degrees).

To obtain the total noise level, we add the different L_i values following the equation

L_eq= 10.Log[S_i10^(L_i/10)]

In the railway case, we shall calculate the noise level in a similar way. For airports, we shall use the next equation

Leq=Leq(300m)-20Log(r/300)

where Leq(300m) is the noise level at 300m from the airport.

This model performs satisfactorily for simple sound propagations with no ground interaction or attachment. The application will not consider sound reflections in the ground surface.

Noise map for two roads using noise isolines.

Noise map in the XZ plane for three sources using colour gradient.

noise solutions

CUSTIC software solutions: This application has been used in great number of environmental reports, noise pollution courses and noise pollution studies in the last years. We currently have users in more than 10 countries. Noise pollution predictions in England: noise solutions

North Yorkshire - noise solutions - noise control solutions - noise pollution solutions -

Lincolnshire - environmental noise solutions - solution to noise pollution - noise stop solutions -

Suffolk - solutions for noise pollution - traffic noise solutions - advanced noise solutions -

Cumbria - noise problem solution - solution of noise - sound solutions -

Norfolk - noise panels - noise walls - isolation solutions -

Essex - noise enclosure - noise dampening -

Aberdeen - noise scale - emi attenuation - noise measurement -

Bath - acoustic and insulation manufacturing - acoustics insulation - acoustical insulation -

Belfast - insulation solutions - acoustic solutions - noise curtains -

Birmingham - noise reduction solutions - noise pollution solution - white noise solutions -

Brighton & Hove - sound proof solutions - noise insulation - acoustics solutions -

Bristol - solution of noise pollution - solution for noise pollution - road noise solutions -

Canterbury - noise enclosures - studio solutions - noise theory -

Cardiff - noise reduction solution - solution for noise - - industrial noise solutions -

Chester - impact solutions - curtains solutions - shielding solutions -

Chichester - panel solutions - environment solutions - noise damping -

Derby - solutions of noise pollution - noise control solution - road noise solution -

Dundee - scale attenuation - noise absorption - noise walls - measuring attenuation -

Durham - noise barriers - control solutions - noise wall -

Edinburgh - noise engineering - noise absorption - attenuation solutions -

Ely - noise effects - noise barrier - solutions engineering

Glasgow - acoustic insulation - acoustic wall insulation - thermal acoustic insulation -

Somerset - transmission noise -

Kent - acoustic insulation material - thermal and acoustic insulation -

Shropshire - acoustic insulation panels - marine acoustic insulation -

Wiltshire - acoustic insulation design -

Cornualles - sound insulation - soundproofing insulation - insulation -

Cambridgeshire - sound reduction -

Staffordshire - sound insulation materials - insulation materials

Gloucestershire - acoustic insulators - insulation contractors - insulation material - acoustic treatment -

Oxfordshire - industrial noise control -

Lancashire - insulation values - acoustic construction - acoustic batts -

Dorset - insulation walls - acoustic window - insulation panels - acoustic wall - vibration insulation - cavity insulation -

Northamptonshire - interior insulation -

Durham - acoustic building - acoustic garage -

Cheshire - noise margin attenuation - attenuation of noise - traffic noise attenuation -

Gloucester - noise insulation -

Hereford - soundproof insulation - sound proofing - soundproofing -

Inverness - sound proof insulation - thermal insulation - acoustic barriers -

Kingston upon Hull - noise attenuation walls - attenuation and noise margin - noise attenuation fence -

Lancaster - acoustic foam - wall insulation - roof insulation - acoustic soundproofing

Leeds - noise attenuation distance - line attenuation and noise margin - active noise attenuation -

Leicester - home insulation - noise control products - acoustic insulating - acoustic consultants -

Lichfield - line attenuation noise margin - noise margin attenuation - noise and attenuation -

Lincoln - acoustic barrier - insulation batts - drywall insulation -

Lisburn -acoustic basement - acoustic reduction - acoustic door -

Liverpool - acoustic industrial - construction insulation - panel insulation - noise attenuation -

Manchester - acoustic spray - acoustic stc - acoustic soundproof -

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