Abstract
The paper presents the results of investigation of sound field on a building facade neighbouring a busy road. The investigation has been undertaken over a facade of a specific shape which can provide noise protection. The applied simulation programs allow control of accuracy in road modelling as a noise source and the surrounding propagation space. In this way the required agreement between the simulation and the field measurements could be obtained. The simulation involves the facade geometry and geometry of surrounding buildings, road geometry (number of lanes and their positions) and traffic structure (vehicle flow rates and their average speeds). In the programs vehicles moving over a road are modelled as omnidirectional point sources. With use of the PROP 12 simulation program the role of vehicle mutual screening in road noise emission has been analysed.
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