In the paper, the simulation PROP5 program with the road model defined as a noise source and road surroundings model, is used to predict the efficiency of noise protecting means for the chosen building. The appropriate models of verified accuracy have been chosen by comparison of the simulation results with field measurements (Walerian et al., 2010). Here, using the pre-tested simulation program, the possibility of acoustic climate improvement has been analyzed in the ranges of practical variations of the input parameters. The road parameters: its geometry (number of lanes and their positions) and traffic structure over lanes (vehicle flow rates and their average speeds) have been taken under consideration as changeable parameters, that could be corrected to obtain acoustical climate improvement. Moreover, an acoustical screen designing has been considered. The screen efficiency has been evaluated under conditions defined by the input parameters of the road and its surroundings.
Calixto A., Pulsides C., Zannin P. H. T. (2008), Evaluation of transportation noise in urbanized areas. A case study, Archives of Acoustics, 33, 2, 185-199.
Directive 2002/49/EC of the European Parliament and Council of 25 June 2002 relating to The Assessment and Management of Environment Noise.
Glegg S. A., Yoon J. R. (1990), Determination of noise source heights, Part II. Measurement of the equivalent source height of highway vehicles, Journal of Sound and Vibration, 143, 39-50.
Gołębiewski R., Makarewicz R. (2009), Verification of two methods of railway noise propagation, Archives of Acoustics, 34, 2, 177-188.
Grossmann H., Ehinger P. (1997), Vehicle pass-by noise control at Porsche, Proceedings of INTER-NOISE 97, Budapest, 75-80.
ISO 1996/1 Acoustics - Description and measurement of environmental noise - Part 1: Basic quantities and procedure
Janczur R. (1990), Theoretical and scale-model investigation of a point source acoustical field in the presence of reflecting surfaces and screen, Ph.D Thesis [in Polish], Institute of Fundamental Technological Research Report, 8.
Janczur R., Walerian E., Czechowicz M. (2001a), Sound levels forecasting for city-centers. Part III: A road lane structure influence on sound level within urban canyon, Applied Acoustics, 62, 493-512.
Janczur R., Walerian E., Czechowicz M. (2001b), Sound levels forecasting for city-centers. Part IV: Vehicles stream parameters influence on sound level distribution within canyon street, Applied Acoustics, 62, 645-664.
Janczur R., Walerian E., Meissner M., Czechowicz M. (2009), Application of simulation program to specific urban situation, Applied Acoustics, 70, 973-965.
Jonasson H. G. et al. (2004), The Harmonoise source model for road vehicles, Proceedings of INTERNOISE 2004, 1/8-8/8, Prague.
Li K. M., Tang S. H. (2003), The predicted barrier effect in proximity of tall buildings, Journal of Acoustical Society of America, 114, 2, 821-832.
Makarewicz R. (1996), Representative spectrum of road traffic noise, Journal of the Acoustical Society of Japan (E), 17, 5, 249-254.
Sakurai Y., Walerian E., Morimoto H. (1990), Noise barrier for building facade, Journal of Acoustical Society of Japan, 11, 5, 257-265.
Steele C. (2001), A critical review of some traffic noise prediction models, Applied Acoustics, 62, 271-287.
Tang S. H., Li K. M. (2001), The prediction of façade effects from a point source above an impedance ground, Journal of Acoustical Society of America, 110, 1, 278-288.
Walerian E. (1995), Description of noise propagation in a built-up area, IFTR Reports, 29.
Walerian E., Janczur R. (1998), Noise shielding efficiency in an urban system, Journal of Sound and Vibration, 212, 2, 187-214.
Walerian E., Janczur R., Czechowicz M. (1999a), The effectiveness of screens in urban area, Applied Acoustics, 58, 153-172.
Walerian E., Janczur R., Czechowicz M. (1999b), Applications of the road traffic noise model to urban systems, Archives of Acoustics, 24, 2, 145-160.
Walerian E., Janczur R., Czechowicz M. (2001a), Sound levels forecasting for city-centers. Part I: Sound level due to a road within urban canyon, Applied Acoustics, 62, 359-350.
Walerian E., Janczur R., Czechowicz M. (2001b), Sound levels forecasting for city-centers. Part II: Effect of source model parameters on sound level in built-up area, Applied Acoustics, 62, 461-492.
Walerian E., Janczur R., Czechowicz M. (2002), Practical description of diffraction at wedges, Acustica - acta acustica, 88, 1, 65-76.
Walerian E., Janczur R., Czechowicz M. (2003), Efficiency of acoustical screens applied against traffic noise in built-up area [in Polish: Skuteczność ekranów akustycznych jako zabezpieczenia przed hałasem drogowym w obszarach zurbanizowanych. Drogi i Mosty], 1/2003, 63-96.
Walerian E., Janczur R., Czechowicz M, Smyrnova Y. (2010), Possible improvement of acoustical climate. PART I: Measurements and theoretical description, Archives of Acoustics, 35, 307-332.