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LOW-NOISE PAVEMENT AS A WAY OF LIMITATION OF TRAFFIC NOISE LEVEL
 
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Wydział Budownictwa i Inżynierii Środowiska, Politechnika Białostocka, ul. Wiejska 45E, 15-351 Białystok
 
 
Publication date: 2014-11-04
 
 
Inż. Ekolog. 2014; 40:65-73
 
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ABSTRACT
Road surface can significantlyreduce the trafficnoise level. Depending on the characteristic of the upper surface layers the differences between the maximum rolling noise levels from passing vehicles to reach values about 10 dB (A). A special group is low-noise pavements characterized by the presence of voids above 15%. Application the porous asphalt layers or asphalt mixture type BBTM affects a significantreduction the width of land surrounded the roads where permissible equivalent sound level is exceeded. Such solutions in some cases can replace acoustic barriers. Road pavements with a higher content of voids require proper maintenance because their acoustic performances are reduced during operation.
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