CNOSSOS-EU sensitivity to meteorological and to some road initial value changes

Panu Maijala, Jarno Kokkonen, Olli Kontkanen

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

During the implementation process of the CNOSSOS-EU, many questions have been arisen. There are inconsistencies in the guidance, but the most of the questions are related to the acquisition of the initial values and their validity. We evaluated the sensitivities of the noise propagation part and the road noise sound power levels to the changes of some initial values within their validated ranges. The evaluated parameters were the probability of occurrence of downward-refraction conditions and the coefficients for the road surface and propulsion noise. Measured weather values were calculated using three approaches and compared to each other and to the default values. The results shows that the use of the default weather values increase the immission levels and thus the number of exposed people. The default rolling and propulsion noise factors of the CNOSSOS-EU method are not usable in northern conditions and the national factors should be exploited.
Original languageEnglish
Title of host publicationProceedings of INTER-NOISE 2016
Pages1367-1378
Publication statusPublished - 2016
MoE publication typeA4 Article in a conference publication
Event45th International Congress and Exposition on Noise Control Engineering: Towards a Quieter Future, INTER-NOISE 2016 - Hamburg, Germany
Duration: 21 Aug 201624 Aug 2016

Conference

Conference45th International Congress and Exposition on Noise Control Engineering: Towards a Quieter Future, INTER-NOISE 2016
Abbreviated titleINTER-NOISE 2016
CountryGermany
CityHamburg
Period21/08/1624/08/16

Fingerprint

road
weather
implementation process
refraction
sound
method
parameter
immission

Keywords

  • CNOSSOS-EU
  • environmental noise
  • favourable conditions
  • initial values
  • mapping
  • rolling and propuolsion noise coefficients
  • weather effets to noise

Cite this

Maijala, P., Kokkonen, J., & Kontkanen, O. (2016). CNOSSOS-EU sensitivity to meteorological and to some road initial value changes. In Proceedings of INTER-NOISE 2016 (pp. 1367-1378)
Maijala, Panu ; Kokkonen, Jarno ; Kontkanen, Olli. / CNOSSOS-EU sensitivity to meteorological and to some road initial value changes. Proceedings of INTER-NOISE 2016. 2016. pp. 1367-1378
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author = "Panu Maijala and Jarno Kokkonen and Olli Kontkanen",
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Maijala, P, Kokkonen, J & Kontkanen, O 2016, CNOSSOS-EU sensitivity to meteorological and to some road initial value changes. in Proceedings of INTER-NOISE 2016. pp. 1367-1378, 45th International Congress and Exposition on Noise Control Engineering: Towards a Quieter Future, INTER-NOISE 2016, Hamburg, Germany, 21/08/16.

CNOSSOS-EU sensitivity to meteorological and to some road initial value changes. / Maijala, Panu; Kokkonen, Jarno; Kontkanen, Olli.

Proceedings of INTER-NOISE 2016. 2016. p. 1367-1378.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

TY - GEN

T1 - CNOSSOS-EU sensitivity to meteorological and to some road initial value changes

AU - Maijala, Panu

AU - Kokkonen, Jarno

AU - Kontkanen, Olli

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N2 - During the implementation process of the CNOSSOS-EU, many questions have been arisen. There are inconsistencies in the guidance, but the most of the questions are related to the acquisition of the initial values and their validity. We evaluated the sensitivities of the noise propagation part and the road noise sound power levels to the changes of some initial values within their validated ranges. The evaluated parameters were the probability of occurrence of downward-refraction conditions and the coefficients for the road surface and propulsion noise. Measured weather values were calculated using three approaches and compared to each other and to the default values. The results shows that the use of the default weather values increase the immission levels and thus the number of exposed people. The default rolling and propulsion noise factors of the CNOSSOS-EU method are not usable in northern conditions and the national factors should be exploited.

AB - During the implementation process of the CNOSSOS-EU, many questions have been arisen. There are inconsistencies in the guidance, but the most of the questions are related to the acquisition of the initial values and their validity. We evaluated the sensitivities of the noise propagation part and the road noise sound power levels to the changes of some initial values within their validated ranges. The evaluated parameters were the probability of occurrence of downward-refraction conditions and the coefficients for the road surface and propulsion noise. Measured weather values were calculated using three approaches and compared to each other and to the default values. The results shows that the use of the default weather values increase the immission levels and thus the number of exposed people. The default rolling and propulsion noise factors of the CNOSSOS-EU method are not usable in northern conditions and the national factors should be exploited.

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Maijala P, Kokkonen J, Kontkanen O. CNOSSOS-EU sensitivity to meteorological and to some road initial value changes. In Proceedings of INTER-NOISE 2016. 2016. p. 1367-1378