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Application of A 2D Markavian Approach To The Modelling of Sound Propagation In Streets

Zaiton Haron, and Oldham, David, and Khairulzan Yahya, and Rozana Zakaria, (2008) Application of A 2D Markavian Approach To The Modelling of Sound Propagation In Streets. Malaysian Journal of Civil Engineering, 20 (2). pp. 175-187.

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Official URL: http://web.utm.my/ipasa/images/stories/MJCE/2008/vol_20_no_2/Dec%203-Zaiton%20[1].pdf

Affiliations

Universiti Teknologi Malaysia. Faculty of Civil Engineering. Construction Technology and Management Centre
University of Liverpool. Acoustic Research Unit
Universiti Teknologi Malaysia. Faculty of Civil Engineering. Construction Technology and Management Centre
Universiti Teknologi Malaysia. Faculty of Civil Engineering. Construction Technology and Management Centre

Abstract

Markov approach has been used in modeling multiple reflections or reverberation in rooms. This paper examines the application of Markov approach in the study of propagation of sound in streets by treating multiple reflections in streets as a Markov process. In this preliminary study a two dimensional model has been employed. Results obtained are compared with those obtained using ray tracing, RAYNOISE. It is concluded that the sound field predicted by the Markov process is similar to the sound field obtained by the ray tracing model using the diffuse option and it is suggested that the method can be extended to account for application in 3D streets.

Item Type:Journal
Additional Information:The authors would like to thank the Ministry of Science, Technology and Innovation Malaysia (MOSTI) and Universiti Teknologi Malaysia (UTM) for the sponsorship of the research.
Keywords:Diffuse reflection, Markov process, Transition probability, Sound propagation
Subjects:T Technology, Engineering
ID Code:6404

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