Archives of Acoustics, 41, 2, pp. 309–314, 2016
10.1515/aoa-2016-0031

Traffic Noise Models for Curved Roads

Diana Ioana POPESCU
Technical University of Cluj-Napoca
Romania

Ioan COSMA
Technical University of Cluj-Napoca
Romania

The paper presents two theoretical models for traffic noise level distribution on curved horizontal roads. In the case of vehicles moving on a given route, one can consider, in terms of sound field, that the granular traffic is equivalent for short periods with a quasi-continuous noise flow. When computing and modelling the noise level generated by traffic on roads with complex trajectory, it is common to treat the route as a sum of small length road segments, each being assimilated with a linear noise source. This paper started from the assumption that the route can be decomposed into a sequence of linear and arc-shaped road segments, each of which is treated as a linear respectively curved noise source. An arc-shaped road segment is modelled by a tubular vibrating surface, of circular or rectangular section. In the case of rectangular section, the vibrating blade emits complex sounds on its both vertical sides and the generated sound field can be described more clearly, qualitatively and quantitatively, through intensity distribution. The theoretical models presented in the paper have direct application to the traffic noise prediction and noise maps drawing.
Keywords: traffic noise; noise source modelling; sound field; curved road.
Full Text: PDF

References

Berg P., Mason A., Woods A. (2000), Continuum approach to car-following models, Physical Review E, 61, 2, 1056–1066.

Berg P., Woods A. (2001), Traveling waves in an optimal velocity model of freeway traffic, Physical Review E, 63, 036107.

Cosma I., Popescu D.I. (2010), Entropical Aspects in Auditory Processes and Psychoacoustical Law of Weber-Fechner, Modern Physics Letters B, 24, 16, 1815–1824.

Cosma I., Popescu D.I. (2015), Phenomenological Modeling of Sound Field Generated by Transversal Vibrations of Strait-Lined and Cylindrical Sources, Studia Universitatis Babes-Bolyai, Physica, LX, 2, 33–42.

Czyzewski A., Kotus J., Szczodrak M. (2011), Creating acoustic maps employing supercomputer cluster, Archives of Acoustics, 36, 2, 395–418.

Defrance J., Gabillet Y. (1999), A New Analytical Method for the Calculation of Outdoor Noise propagation, Applied Acoustics, 57, 2, 109–127.

Defrance J., Salomons E., Noordhoek I., Heimann D., Plovsing B.,Watts G., Jonasson H., Zhang X., Premat E., Schmich I., Aballea F., Baulac M., de Roo F. (2007), Outdoor Sound Propagation Reference Model Developed in the European Harmonise Project, Acta Acustica united with Acustica, 93, 2, 213–227.

Guarnaccia C. (2013), Advanced Tools for Traffic Noise Modelling and Prediction, WSEAS Transaction on Systems, 12, 2, 121-130.

Johnson D.R., Sanders G. (1968), The evaluation of noise from freely flowing road traffic, Journal of Sound and Vibration, 7, 2, 287–309.

Lamancusa J.S. (2009), Engineering Noise Control. Outdoor Sound Propagation, Retrieved March 5, 2015, from PennState College of Engineering, MNE Department, www.mne.psu.edu/lamancusa/me458/10osp.pdf.

Lelong J. (1999), Vehicle Noise Emission: Evaluation of Tyre/Road – and Motor – Noise Contributions, Inter-Noise 99, Retrieved October 10, 2014, www.inrets.fr/ur/lte/publications/publications-pdf/Lelong-publi/bruit moteur bruit pneu.pdf.

Lighthill M.J., Whitham G.B. (1955), On kinematic waves: II. A theory of traffic flow on long crowded roads, Proceedings of the Royal Society A, 229, 1178, 317–345J.

Popescu D.I., Tuns R.E., Moholea I.F. (2011), The Urban Acoustic Environment – A Survey for Road Traffic Noise, Carpathian Journal of Earth and Environmental Sciences, 6, 1, 285–292.

Quartieri J., Mastorakis N.E., Iannone G., Guarnaccia C., D’Ambrosio S., Troisi A., Lenza T.L.L. (2009), A Review of Traffic Noise Predictive Models, Proceedings of the 5th WSEAS International Conference on Applied and Theoretical Mechanics – Recent Advances in Applied and Theoretical Mechanics, WSEAS Press, pp. 72–80.

Steele C. (2001), A critical review of some traffic noise prediction models, Applied Acoustics, 62, 3, 271–287.

Stefano R., Danato D., Morri B. (2001), A Statistical Model for Predicting Road Traffic Noise on Poisson Type Traffic Flow, Noise Control Engineering Journal, 49, 3, 137–143.

Tong Li (2007), Instability and Formation of Clustering Solutions of Traffic Flow, Bulletin of the Institute of Mathematics, Academia Sinica (New Series), 2, 2, 281–295.




DOI: 10.1515/aoa-2016-0031

Copyright © Polish Academy of Sciences & Institute of Fundamental Technological Research (IPPT PAN)