Tyre/road noise frequency spectra analyses based on CPX measurement with six microphones

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44994575%3A_____%2F24%3A10002040" target="_blank" >RIV/44994575:_____/24:10002040 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Tyre/road noise frequency spectra analyses based on CPX measurement with six microphones
Original language description
Road traffic noise is affected by many factors, the road surface being one of them. The CPX method (ISO 11819-2) is the method used to measure tyre/road noise, i.e. noise generated by tyre-surface contact. Up to six microphones are positioned around reference tyre in specified positions as the standard requires. Two microphones are mandatory; four are optional.Conventional stone mastic asphalt, exposed aggregate cement concrete, low-noise pavement and cobblestones were measured by the CPX method using six microphones at a speed of 80 km/h. It would be advisable to consider adding another mandatory microphone (probably 5 or 6) to thetwo existing ones or to "relocate" one of these two (probably 4 or 5) for a more optimal tyre/road noise assessment. Presented results could be used to discussion about positions or necessity of mandatory and optional microphones.
Czech name
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Czech description
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Project
<a href="/en/project/CK04000058" target="_blank" >CK04000058: Consideration of other influences reflected in the measured noise values of pavement surfaces in dynamic measurement</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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