Sound diffraction testing of noise barrier tops according to PrCEN/TS 1793-4

Cristo Padmos
The CEN technical specification PrCEN/TS 1793-4 was developed for testing the diffraction properties of noise barriers independent of actual barrier location characteristics. In the Netherlands a program for the improvement of noise abatement measures has been initiated, the Noise Innovation Program (IPG). This program will develop more cost-effective measures to reduce traffic noise impact. In the framework of this program the effect of added devices at the top of a barrier are investigated.
more » ... e method of PrCEN/TS 1793-4 was used for this research. The results show that this method is useful and that some of the investigated added devices may give a significant extra noise reduction.