This article presents the main aspects concerning the traffic noise as well as the elements that generate it. Starting with a study on several street profiles, the paper takes into account the variability of modelling parameters (height of buildings, distance between the facades of buildings, green zones, composition of traffic etc) and then, analyzes the influence of these factors on the traffic noise level. At the same time, it proposes a comparative study of the equivalent noise level, calculated and measured “in situ”, in several boulevards of the Romanian capital city, Bucharest.
Сitation: Gratiela Hincu. Computer assisted evaluation of traffic noise level. Electronic Journal “Technical Acoustics”, http://www.ejta.org, 2003, 18.
1. Ursoniu, C., Dumitrescu, C. Acoustic pollution and its consequences, Ed. Facla, 1976.
2. Bengang Li, Shu Tao, Dawson, R. W. Evaluation and analysis of traffic noise from the main urban roads in Beijing, Applied Acoustics, 2002, vol. 63(1), pp. 1137–1142.
3. Bragdon, C. Noise pollution, University of Pennsylvania Press, Philadelphia, 1971.
4. Scholes, W. E., Sargent, J. W. Designing against noise from road traffic, Building Research Establishment, Garston, Watford, United Kingdom, 1971, 5, pp. 27–38.
5. Zaharia, M. C. Contributions to evaluating and monitoring the environmental noise, Ph. D. Thesis, “Gh. Asachi” Technical University, 1998, Iasi, Romania.
6. Larson, K., Barrelet, S., Kropp, W. The modelling of the dynamic behaviour of tyre tread blocks, Applied Acoustics, 2002, vol. 63(6), pp. 659–677.
7. GP 0001. Romanian code of protection against environmental noise. Guide book for the acoustic designing for urban areas, 1996.
8. Bengang, Li, Shu Tao. A GIS based road traffic noise prediction model, Applied Acoustics, 2002, vol. 63(6), pp. 679–691.
9. Gaja, E., Gimenez, A., Sancho, S., Reig, A. Sampling techniques for the estimation of the annual equivalent noise level under urban traffic conditions, Applied Acoustics, 2003, vol. 64(1), pp. 43–53.
10. Rotberg, R., Hincu, G. Calculation of the traffic sound attenuation by barriers, “Gh. Asachi” Technical University Bulletin of Iasi, 1998, vol. XLIV(XLVIII), 71–74.
Gratiela Hincu was born in Focsani, Romania. Graduated from the Faculty of Constructions of Iasi, with the first-class degree and received Ph.D. from “Gh. Asachi” Technical University of Iasi, in 1997. In 1995, she went to EPF of Lausanne (Switzerland) to prepare her Ph. D. thesis in room acoustics and then, in 1997, she joined the acoustic research group of ENTPE of Vaulx en Velin (France). Dr. Gratiela Hincu is a reader at “Gh. Asachi” Technical University of Iasi (Romania). Scientific activity includes room acoustic design, sound insulation design and environmental acoustics.