Effects of traffic composition on noise generated by typical Brazilian roads

• Autorzy: Lenzi A. , Filho J. M. A. , Zannin P. H. T.
• Języki publikacji: EN

Abstrakty

EN

The effects of traffic composition on the noise generated by typical Brazilian roads are analyzed in this work Composition is defined as the percentage of heavy vehicles (trucks and buses) with respect to the overall number of vehicles. Noise measurements were made at 10 m from lane edges of three typical roads at the city of Florianópolis, SC. All sites had indentical characteristics, such us, long and horizontal straights, free of reflections from buildings and walls, traffic flowing average speed of 80 km/h, and distant from traffic lights and round abouts. Measurements were made on the same days of the week and at the same time (from 06:00 to 10:10 h). On these three roads a total of 149 measurements were made and for each of them the percentile level L10 and the equvalent level Leq were calculated. These levels were plotted against the composition of the traffic from which were obtained empirical expressions, with reasonably good correlation indexes, which can be used for predicting road traffic noise levels based on the knowledge of traffic parameters. Information obtained in this work will help authorities to foresee the response of communities to typical Brasilian road traffic noise.

Słowa kluczowe

EN

road traffic noise; vehicle noise; community noise; traffic volume composition

PL

hałas drogowy

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2003
• Tom: Vol. 28, no. 1
• Strony: 19--28
• Opis fizyczny: Bibliogr. 14 poz., wykr.

Twórcy

autor

Lenzi A.

• Laboratório de Vibrações e Acústica, Universidade Federal de Santa Catarina, Departamento de Engenharia Mecânica, CEP: 88040-900 - Florianópolis, SC, Brasil

autor

Filho J. M. A.

• Laboratório de Vibrações e Acústica, Universidade Federal de Santa Catarina, Departamento de Engenharia Mecânica, CEP: 88040-900 - Florianópolis, SC, Brasil

autor

Zannin P. H. T.

• Laboratório de Acústica Ambiental, Universidade Federal do Paraná, Departamento de Engenharia Mecânica, Centro Politécnico, Bairro Jardim das Américas CEP: 81531-990, Curitiba, Paraná, Brasil

Bibliografia

• [1] BRÜEL & KJAER, Technical Documentation Mediator 2238 Logging Sound Level Meter, Naerum, Denmark (1995).
• [2] BRÜEL & KJAER, Environmental Noise, Brüel & Kjaer Sound and Vibration Measurements, Naerung, Denmark (2000).
• [3] A. CALIXTO, F. B. DINIZ, P. H. T. ZANNIN, Statistical modeling of road traffic noise, Cities - The International Journal of Urban Policy and Planning, (in press) (2002).
• [4] D. H. CROMPTON, D. GILBERT, The predictive base used to determine environmental capacities, Internal Report. Imperial College, London (1985).
• [5] W. FASOLD, E. VERES, Schallschutz + Raumakustik in der Praxis, Verlag für Bauwesen, Berlin (1998).
• [6] I. S. Fidel, Nationwide urban noise survey, Journal of the Acoustical Society of America, 64, 198-206 (1978).
• [7] A. Garcia, L. J. Faus, Statistical analysis of noise levels in urban areas, Applied Acoustics, 34, 227-247 (1991).
• [8] I. D. GRIFFITHS, F. J. LANGDON, Subjective response to road traffic noise, Journal of Sound and Vibration, 8, 16-32 (1986).
• [9] M. HECKL, H. A. MÜLLER, Taschenbuch der Technischen Akustik, Springer-Verlag, Berlin (1995).
• [10] F. J. LANGDON, Noise nuisance caused by road traffic in residential areas, Part I, Journal of Sound and Vibration, 47, 5, 243-263 (1976).
• [11] J. M. B. MORILLAS, V. G. ESCOBAR, J. A. M. SIERRA, R. V. GÓMEZ, J. T. CARMONA, An environmental noise study in the city of Cauceres, Applied Acoustics 63, 1061-1070, Spain (2002).
• [12] T. SCHULTZ, Community noise rating, Applied Science Publishers, London (1982).
• [13] Unweltbundesamt, Lärmbelästigung, Report of the German Environmental Agency, Berlin (2002).
• [14] P. H.T. ZANNIN, A. CALIXTO, F. B. DINIZ, J. A. C. FERREIRA, A survey of urban noise annoyance in a large brazilian city: The importance of a subjective analysis in conjunction with a objective analysis, Environmental Impact Assesment Review, (in press) (2002).