Reading: Modelling Free Flowing Vehicular Traffic Noise


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Section II

Modelling Free Flowing Vehicular Traffic Noise


R. T. Sooriyarachchi ,

University of Colombo, LK
About R. T.

Department of Physics

Dip (IT) (SLIIT), BSc Phys. (Hons) (Colombo)

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D. U. J. Sonnadara

University of Colombo, LK
About D. U. J.

Department of Physics

C.Phys., MIP (SL), MCS (SL), BSc. Phys. (Hons) (Colombo), MSc. (Pittsburgh), PhD. (Pittsburgh)

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Traffic noise of 650 vehicles classified into 8 vehicle classes were measured in several locations within the Western Province of Sri Lanka in order to extract the necessary coefficients to develop a road traffic noise prediction model. The model was developed to predict the traffic noise generated from free-flowing vehicles in roadways. Traffic flow data used for constructing this model was limited to vehicle noise, vehicle class, vehicle speed and the distance from the traffic flow line. It is shown that the predictions can be made within ±11 dB(A) accuracy with respect to the actual experimental observations. Microsoft.Net (R)platform was used for the development of the traffic simulator based on the model parameters.
How to Cite: Sooriyarachchi, R.T. and Sonnadara, D.U.J., 2008. Modelling Free Flowing Vehicular Traffic Noise. Engineer: Journal of the Institution of Engineers, Sri Lanka, 41(2), pp.43–47. DOI:
Published on 20 Apr 2008.
Peer Reviewed


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