In-situ measurement of the acoustical properties of noise barriers (VSS2002/202)
Overview
Background & policy context:
Compared to the classical methods to measure sound transmission loss and absorption of noise barriers in the laboratory, the new Adrienne procedure (European standard prENV 1793-5) has some important advantages. Meanwhile there exists a first commercial implementation of the method. Some preliminary results found with the new method are documented in the literature but a profound experience to introduce the method is still missing. Within this project a series of known noise barriers will be examined with Adrienne. By comparison with the data from the classical measurements in the lab, the correlation between the two methods will be determined. In addition a tool will be developed to translate data found in the laboratory and with Adrienne.
Objectives:
Using prENV 1793-5 (Adrienne) there exists a draft of a European standard for the in-situ measurement of acoustical properties of noise barriers. The aim of the project is testing and validation of the new procedure.
Using comparison of Adrienne measurement results with data found in the laboratory with classical methods at identical structures, a tool will be developed to translate the measurement data from one method to the other.
A checklist will be developed to specify which measurement method is well suited for what kind of structures.
Methodology:
Comparative measurements with two methods, correlation studies
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