Print Email Facebook Twitter Assessment of reflectivity of noise barriers in the far field – QUIESST method compared to traditional approach Title Assessment of reflectivity of noise barriers in the far field – QUIESST method compared to traditional approach Author de Roo, F. Publication year 2013 Abstract The sound reflectivity of noise barriers elements is one of the major acoustic product characteristics. Traditionally this property was tested in reverberation rooms according to EN 1793-1 and the results were used to predict the effect of sound reflections in the far field. As in many cases these results cannot be used directly to assess the far field influence of reflections, two methods to modify the test results (truncation and correction for finite sample size) may be used for practical applications. More recently outdoor in-situ sound reflectivity tests were developed as an alternative for the laboratory tests (CEN/TS 1793-5). After the first development phase in the EU project Adrienne (1995 -1997) the in-situ test method for reflectivity was improved in the EU-FP7 project QUIESST (2009-2012). In this project the near field test was complemented with an engineering computation method to predict the far field effect of reflections. This combined assessment methodology is discussed in this paper and its results are presented and compared to the traditional approach. Subject Physics & ElectronicsAS - Acoustics & SonarTS - Technical SciencesBuildings and InfrastructureAcoustics and AudiologyBuilt EnvironmentNoise barrierReflectivityFar Field propagation modelAcoustic noise measurementSamplingAcoustic noise To reference this document use: http://resolver.tudelft.nl/uuid:ffdde5ed-3309-4cdb-a575-af0235bcea6c TNO identifier 479234 Publisher Institute of Noise Control Engineering, Washington, D.C. Source 42nd International Congress and Exposition on Noise Control Engineering - Noise Control for Quality of Life - INTER-NOISE 2013, 15-18 September 2013, Innsbruck, Austria, 2598-2607 Document type conference paper Files To receive the publication files, please send an e-mail request to TNO Library.