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Traffic noises:measuring and
simulationBaár-Madas Secondary School, Budapest, Hungary
![Page 2: Traffic noises: measuring and simulation Baár-Madas Secondary School, Budapest, Hungary](https://reader036.vdocuments.mx/reader036/viewer/2022062407/56649da65503460f94a91e27/html5/thumbnails/2.jpg)
General overview – we’ve already done…
Spectral analysis of noise generated by traffic Testing the noise abatement capabilities of
different materials
Making noise map (in space and time) of a major traffic junction
Find the noise-overload of this area
![Page 3: Traffic noises: measuring and simulation Baár-Madas Secondary School, Budapest, Hungary](https://reader036.vdocuments.mx/reader036/viewer/2022062407/56649da65503460f94a91e27/html5/thumbnails/3.jpg)
General overview – we’ve already done…
Spectral analysis of noise generated by traffic Testing the noise abatement capabilities of
different materials
Making noise map (in space and time) of a major traffic junction
Find the noise-overload of this area
![Page 4: Traffic noises: measuring and simulation Baár-Madas Secondary School, Budapest, Hungary](https://reader036.vdocuments.mx/reader036/viewer/2022062407/56649da65503460f94a91e27/html5/thumbnails/4.jpg)
Spectrum of a vehicle
frequency [Hz]
inte
nsity
bus
higher intensity at low,
lower intensity at high freq. components
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Spectral noise abatement of a window
frequency [Hz]
inte
nsity
without abatementwith abatement
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Spectral noise abatement of a window
frequency [Hz]
inte
nsity
effective reducing at high frequencies
poor reducing at low,
![Page 7: Traffic noises: measuring and simulation Baár-Madas Secondary School, Budapest, Hungary](https://reader036.vdocuments.mx/reader036/viewer/2022062407/56649da65503460f94a91e27/html5/thumbnails/7.jpg)
General overview – we’ve already done…
Spectral analysis of noise generated by traffic Testing the noise abatement capabilities of
different materials
Making noise map (in space and time) of a major traffic junction
Find the noise-overload of this area
![Page 8: Traffic noises: measuring and simulation Baár-Madas Secondary School, Budapest, Hungary](https://reader036.vdocuments.mx/reader036/viewer/2022062407/56649da65503460f94a91e27/html5/thumbnails/8.jpg)
Noise map of Moszkva-tér
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Time evolution of the noise-intensityIde jön az animáció!
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Our current investigations I Noise analysis of Ferihegy Terminal I
Measuring the noise load near Ferihegy Comparing the results to the national regulation
Computing the noise load generated by a plane Simulate the results Differences between the Noise Report of
Ferihegy and our measuring and simulation
![Page 11: Traffic noises: measuring and simulation Baár-Madas Secondary School, Budapest, Hungary](https://reader036.vdocuments.mx/reader036/viewer/2022062407/56649da65503460f94a91e27/html5/thumbnails/11.jpg)
Measuring the noise load near Ferihegy Comparing the results to the national regulation
Computing the noise load generated by a plane Simulate the results Differences between the Noise Report of
Ferihegy and our measuring and simulation
Our current investigations I Noise analysis of Ferihegy Terminal I
![Page 12: Traffic noises: measuring and simulation Baár-Madas Secondary School, Budapest, Hungary](https://reader036.vdocuments.mx/reader036/viewer/2022062407/56649da65503460f94a91e27/html5/thumbnails/12.jpg)
Ferihegy International Airport – Terminal I.
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Problems with noise-limit regulations Measuring points
1 2
3
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Problems with noise-limit regulations
Time average
Daytime limit6-22 h
projecting peaks!
Time average < Daytime limit
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1. 2.
3.
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Problems with noise-limit regulations
Projecting peaks
Time average < Daytime limit in line with the regulations
![Page 17: Traffic noises: measuring and simulation Baár-Madas Secondary School, Budapest, Hungary](https://reader036.vdocuments.mx/reader036/viewer/2022062407/56649da65503460f94a91e27/html5/thumbnails/17.jpg)
Measuring the noise load near Ferihegy Comparing the results to the national regulation
Computing the noise load generated by a plane Simulate the results Differences between the Noise Report of
Ferihegy and our measuring and simulation
Our current investigations I Noise analysis of Ferihegy Terminal I
![Page 18: Traffic noises: measuring and simulation Baár-Madas Secondary School, Budapest, Hungary](https://reader036.vdocuments.mx/reader036/viewer/2022062407/56649da65503460f94a91e27/html5/thumbnails/18.jpg)
Computing the noise load generated by a plane
zα: pressure attenuation constantz: measured noise level from distance mh: height of the planex: distance from the projection pointL: noise intensity in a given pointµ: linear absorption capacity of air
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The final approach of a plain
Approach procedure to be followedDaytime
Nighttime
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Results of the simulations
Gyuri progamja!
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The noise map of the area of Ferihegy
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Computing the decrease of the noise level
Simulate the results, making noise maps
Comparing the results to the national regulations
Our current investigations II Highway noise measuring
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Noise map of a highway