Static a Dynamic Method for the Measurement of the Noisiness of Road Surfaces

The very important role in the process of reducing traffic noise will play road surfaces with the reduced noisiness because the effect of the low-noise surface is realized immediately after placement. That means that it is not needed to reduce noise emissions, which would be generated by tyre/road contact, in a costly way by other noise reduction measures. Thus it is possible to achieve reduction of negative impacts on the environment, human health, by implementing suitable low-noise surfaces, when long term sustainability will be assured together with reducing noise burden at the same time. Especially the SPB (Statistical Pass-By) and CPX (Close-Proximity) method are being used in Europe for measuring traffic noise generated by tyre/road interaction [1]. This paper deals with measurements according to the above mentioned methods.