Efficiency of noise reduction by a road speed bump

• Autorzy: Makarewicz R. , Kokowski P.
• Języki publikacji: EN

Abstrakty

EN

The vehicle noise from a road with a bump consists of the deceleration noise, bump noise, and acceleration noise. The bump is modeled by the Dirac delta function. The linear density of sound energy (in Joules per meter) is used for the calculation of sound energies, ec and e, emitted by a vehicle on a road without- and with a bump, respectively. The ratio η = (e_c - e)/e defines the efficiency of noise reduction by a speed bump. To determine η, four measurements of the sound exposure level have to be done. The example of such measurements and calculation of η is given.

Słowa kluczowe

EN

road traffic noise; noise reduction; speed bump

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2007
• Tom: Vol. 32, No. 3
• Strony: 631--642
• Opis fizyczny: Bibliogr. 17 poz., rys.

Twórcy

autor

Makarewicz R.

• Adam Mickiewicz University Institute of Acoustics Umultowska 85, 61-614 Poznań, Poland

autor

Kokowski P.

• Adam Mickiewicz University Institute of Acoustics Umultowska 85, 61-614 Poznań, Poland

Bibliografia

• [1] KOKOWSKI P., MAKAREWICZ R., Predicted effects of a speed bump on light vehicle noise, Applied Acoustics, 67, 570–579 (2006).
• [2] BOVY P., Carres berlinois et rigoles, evaluation et recommendation d’amengament, Securite dans les rues de quartier in EPFL, Lausanne, Report IREC 1007, 1993.
• [3] Traffic Advisory Leaflets, Speed Cushions, TRL, Crowthrone, Report 4/94, 1994.
• [4] ABBOTT P., TYLER J., LAYFIELD R., Traffic calming – vehicle noise emissions along side speed control cushions humps, TRL, Crowthrone, Report 180, 1995.
• [5] Traffic Advisory Leaflets: 75 mm High Road Humps, TRL, Crowthrone, Report 2/96, 1996.
• [6] MIKAMI T., OSHINO Y., TACHIBANA H., Relationship between running speed and sound power levels on urban noise, Proceedings of Inter-Noise 1998, Christchurch, 1998.
• [7] LELONG J., MICHELET R., Effect of acceleration on vehicle noise emission, Proceedings of the Joint Meeting of ASA and DAGA, Berlin 1999.
• [8] BENDSEN H., LARSON L., Stoj ved bump pa veje, Danmarks Transport Forskning, Report 2, Copenhagen 2001.
• [9] LECLERQ L., LELONG J., Dynamic valuation of urban noise, Proceedings of ICA 2001, Roma 2001.
• [10] DESARNAULDS V., MONAY G., CALVARO A., Noise reduction by urban traffic management, Proceedings of ICA 2001, Kyoto 2004.
• [11] EJSMONT J. A., RONOWSKI G., Vehicle and tyre/road noise during interrupted-flow traffic conditions, Proceedings of Inter-Noise 2005, Rio de Janeiro 2005.
• [12] PICAUT J., BERENGIER M., ROUSSEAU E., Noise impact modeling of a roundabout, Proceedings of Inter-Noise 2005, Rio de Janeiro 2005.
• [13] EMBLETON T. F.W., Tutorial on sound propagation outdoors, Journal of the Acoustical Society of America, 100, 31–48 (1996).
• [14] KOKOWSKI P., MAKAREWICZ R., Interrupted traffic noise, Journal of the Acoustical Society of America, 101, 360–371 (1997).
• [15] MAKAREWICZ R., FUJIMOTO M., KOKOWSKI P., A model of interrupted road traffic noise, Applied Acoustics, 57, 129–137 (1999).
• [16] MAKAREWICZ R., Noise from a road intersection, Acta Acustica with Acustica, 89, 844–847 (2003).
• [17] PIERCE A. D., Acoustics, Acoustical Society of America, New York 1989.