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CUSTIC software: Noise pollution map produced by three sources (XY-plane)
CUSTIC software: Noise pollution map produced by three sources (XY-plane)
Noise pollution software: noise maker, noise pollution control, industrial noise control, environmental engineering, environmental consultancy service, environment simulation, environmental modeling and environmental impact assessment.
CUSTIC: Noise pollution · CUSTIC - Software solutions - Software advantages - Price - DEMO download
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or
Nd = total number of events during the period 0700 to 2200
and
Nn = total number of events during the period 2200 to 0700
There is no fixed relationship between Ldn or CNEL and CNR or NEF because of the differences between the A-level and PNL frequency weightings and the allowance for duration, as well as the minor differences in approach to day-night considerations. Nevertheless, one may translate from one measure to another by the following approximate relationship:
(Eq. A-24)
Comparison of Leq with HUD Guideline Interim Standards (1390.2 Chg. 1)
The interim HUD standards for outdoor noise are specified for all noise sources, other than aircraft, in terms of A-weighted sound level not to be exceeded more than a certain fraction of the day. Aircraft noise criteria are stated in terms of NEF or CNR.
The HUD exposure criteria for residences near airports are "normally acceptable" if NEF 30 or CNR 100 is not exceeded. A "discretionary acceptable" category permits exposures up to NEF 40 or CNR 115.
For all other noise sources, the HUD criteria specify a series of acceptable, discretionary, and unacceptable exposures. Since these specifications are similar to points on a cumulative statistical description of noise levels, it is of interest to compare the HUD criteria with Leq for different situations. For discussion purposes, consider the boundary between the categories "discretionary-normally acceptable" and "unacceptable."
The first criterion defining this boundary allows A-weighted noise levels to exceed 65 dB up to 8 hours per 24 hours, while the second criterion states that noise levels exceeding 80 dB should not exceed 60 minutes per 24 hours. These two values may be used to specify two limit points on a cumulative distribution function, L33.3 = 65 dB and L4.2 = 80 dB. The relationship between Leq and the HUD criteria may then be examined for different types of distribution functions, restricting the shape of the distribution only so that it does not exceed these two limit points.
ENVIRONMENTAL NOISE: FW0 - FW1 - FW2 - FW3 - FW4 - FW5 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14 - 15 - 16 - 17 - 18 - 19 - 20 - 21 - 22 - 23 - 24 - 25 - 26 - 27 - 28 - 29 - 30 - 31 - 32 - 33 - 34 - 35 - 36 - 37 - a1 - a2 - a3 - a4 - a5 - a6 - a7 - a8 - a9 - a10 - a11 - a12 - a13 - a14 - a15 - a16 - a17 - a18 - a19 - a20 - a21 - a22 - a23 - a24 - a25 - a26 - b1 - b2 - b3 - b4 - b5 - b6 - b7 - b8 - b9 - b10 - b11 - b12 - c1 - c2 - c3 - c4 - c5 - c6 - c7 - c8 - c9 - c10 - c11 - c12 - c13 - c14 - c15 - c16 - c17 - c18 - c19 - c20 - d1 - d2 - d3 - d4 - d5 - d6 - d7 - d8 - d9 - d10 - d11 - d12 - d13 - d14 - d15 - d16 - d17 - d18 - d19 - d20 - d21 - d22 - d23 - d24 - d25 - d26 - d27 - d28 - d29 - d30 - d31 - d32 - d33 - d34 - d35 - d36 - d37 - d38 - d39 - e1 - e2 - e3 - e4 - e5 - e6 - e7 - f1 - f2 - g1 - g2 - g3 - g4 - g5 - g6 - g7 - g8 - g9 - g10 - g11 - g12 - g13 - g14 - g15
Canarina Algoritmos Numéricos, S.L.
Environmental software solutions
Software para contaminación del ambiente
38300 LA OROTAVA, ,
Islas Canarias,
Españae-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 maker
CANARINA: Home - Air pollution · DISPER - Noise pollution · CUSTIC - Water pollution · DESCAR - Contact us
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
ENVIRONMENTAL NOISE: FW0 - FW1 - FW2 - FW3 - FW4 - FW5 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14 - 15 - 16 - 17 - 18 - 19 - 20 - 21 - 22 - 23 - 24 - 25 - 26 - 27 - 28 - 29 - 30 - 31 - 32 - 33 - 34 - 35 - 36 - 37 - a1 - a2 - a3 - a4 - a5 - a6 - a7 - a8 - a9 - a10 - a11 - a12 - a13 - a14 - a15 - a16 - a17 - a18 - a19 - a20 - a21 - a22 - a23 - a24 - a25 - a26 - b1 - b2 - b3 - b4 - b5 - b6 - b7 - b8 - b9 - b10 - b11 - b12 - c1 - c2 - c3 - c4 - c5 - c6 - c7 - c8 - c9 - c10 - c11 - c12 - c13 - c14 - c15 - c16 - c17 - c18 - c19 - c20 - d1 - d2 - d3 - d4 - d5 - d6 - d7 - d8 - d9 - d10 - d11 - d12 - d13 - d14 - d15 - d16 - d17 - d18 - d19 - d20 - d21 - d22 - d23 - d24 - d25 - d26 - d27 - d28 - d29 - d30 - d31 - d32 - d33 - d34 - d35 - d36 - d37 - d38 - d39 - e1 - e2 - e3 - e4 - e5 - e6 - e7 - f1 - f2 - g1 - g2 - g3 - g4 - g5 - g6 - g7 - g8 - g9 - g10 - g11 - g12 - g13 - g14 - g15
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. Noise reports in Spain:
Madrid: highway noise pollution modeling - noise pollution modeling course - pollution noise from roads report - plant noise pollution modeling - the noise pollution in railways study - sound and air pollution in airports report - control noise pollution in industries study - sources of noise pollution and noise modeling course - airport noise pollution modeling - roads noise pollution modeling - railway noise pollution modeling
Málaga: noise model and noise mapping software course - noise reduction software applications - plant noise pollution modeling - effects of noise pollution study - sources of noise pollution report - airport noise pollution modeling - roads noise pollution modeling - railway noise pollution modeling - noise pollution modeling in the coast - highway noise pollution modeling
Barcelona: highway noise pollution modeling - noise pollution modeling course - plant noise pollution modeling - study of sound pollution, pollution prevention and abatement - air and noise pollution report in airports - council noise pollution study - noise pollution caused by roads report - effects of noise pollution in schools study - airport noise pollution modeling - roads noise pollution modeling - railway noise pollution modeling - noise pollution modeling in the coast
Mallorca: noise pollution effects - plant noise pollution modeling - elaboration of a 130db 50db and 85db decibel map in the city - low frequency and noise reduction study - how to reduce noise and noise prevention report in industries - airport noise pollution modeling - roads noise pollution modeling - railway noise pollution modeling - noise pollution modeling in the coast - highway noise pollution modeling
Cartagena: decibelmeter and vibration study - plant noise pollution modeling - noise cancellation report - airport noise intensity study - reducing noise and noisy roads reports - noise pollution modeling in the coast - highway noise pollution modeling
Cádiz: highway noise pollution modeling - plant noise pollution modeling - noise abatement and attenuation study - study of noise suppression, noise levels and noise fluctuations in railways - cause and effect of noise course - noise pollution modeling in the coast
Murcia: highway noise pollution modeling - noise attenuating and sources of noise course - noise level map elaboration - causes of noise in hospitals report - noise pollution modeling in the coast - plant noise pollution modeling
Valencia: highway noise pollution modeling - plant noise pollution modeling - noises caused by industries report - elaboration of a noise power level map - noise cancelling and eliminating in roads report - soundlevel and sound control study in airports - airport noise pollution modeling - roads noise pollution modeling - railway noise pollution modeling - noise pollution modeling in the coast
Galicia: plant noise pollution modeling - road sound controller study - control sound and active noise control in industries report - airport noise pollution modeling - roads noise pollution modeling - railway noise pollution modeling - noise pollution modeling in the coast - noise pollution modeling in Pontevedra - noise pollution modeling in highways
Asturias: highway noise pollution modeling - engineering noise control in industrial complex study - control noise and vibration in cement plant report - sound and vibration in railways study - noise cancellation and reduction in hospitals report - noise pollution modeling in the coast - plant noise pollution modeling
Vigo: plant noise pollution modeling - reduce noise and euronoise study - noise sources in hospitals report - how eliminate noise course - airport noise pollution modeling - roads noise pollution modeling - railway noise pollution modeling - noise pollution modeling in the coast - highway noise pollution modeling
Orense: highway noise pollution modeling - reducing loud noise in airports report - attenuation and suppression of traffic noise study - noise attenuators and attenuating railway noise study - plant noise pollution modeling
Andalucia: highway noise pollution modeling - plant noise pollution modeling - denoising, noise suppressor and how to reduce noises near hospitals report - noise cancellation and noise cancellers in roads report - noise fluctuation study in airports - noise elimination and silencing near resident areas report - noise pollution modeling in Seville - noise pollution modeling in Málaga - noise pollution modeling in Huelva - noise pollution modeling in Cádiz - noise pollution modeling in Granada - noise pollution modeling in Almería - noise pollution modeling in the coast
Cantabria: plant noise pollution modeling - highway noise pollution modeling - noise cancelling near highways study - quieting and eliminating noise in industries report - airport noise impact assessment - noise pollution modeling in Santander - noise pollution modeling in Laredo - noise pollution modeling in the coast
Vizcaya: noise suppressors near hospitals study - noise disturbance and abatement near highway report - how to reduce noise course - noise sensor study - noise pollution modeling in Bilbao - noise pollution modeling in Santurce - noise pollution modeling in Baracaldo - noise pollution modeling in the coast - highway noise pollution modeling - plant noise pollution modeling
Canarias: noise pollution modeling in La Orotava - noise pollution modeling in Puerto - noise pollution modeling in Santa Cruz - noise pollution modeling in Los Cristianos - noise pollution modeling in Isla Baja - airport noise pollution modeling - roads noise pollution modeling - railway noise pollution modeling - noise pollution modeling in the coast - highway noise pollution modeling - plant noise pollution modeling
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