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Repeatability and reproducibility of in situ measurements of sound reflection and airborne sound insulation index of noise barriers

  • In Europe, in situ measurements of sound reflection and airborne sound insulation of noise barriers are usually done according to CEN/TS 1793-5. This method has been improved substantially during the EU funded QUIESST collaborative project. Within the same framework, an inter-laboratory test has been carried out to assess the repeatability and reproducibility of the newly developed method when applied to real-life samples, including the effect of outdoor weather variability and sample ageing. This article presents the statistical analysis of the inter-laboratory test results, and the values of the repeatability and the reproducibility, both in one-third octave bands and for the single-number ratings. The estimated reproducibility values can be used as the extended measure of uncertainty at the 95% credibility level in compliance with the ISO GUM. The repeatability and reproducibility values associated with airborne sound insulation are also compared with the corresponding values for laboratory measurements in building acoustics and an acceptable agreement is found.

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Author:Massimo Garai, Eric Schoen, Gottfried Behler, Beatriz Bragado, Michael Chudalla, Marco Conter, Jérôme Defrance, Patrick Demizieux, Christ Glorieux, Paolo Guidorzi
Parent Title (English):Acta acustica united with Acustica
Place of publication:Stuttgart
Document Type:Article
Date of Publication (online):2019/11/13
Date of first publication:2014/11/01
Publishing institution:Bundesanstalt für Straßenwesen (BASt)
Contributing corporation:Universita di Bologna. Dipartimento di Ingegneria Industriale
Release Date:2019/11/13
Tag:Absorption; Analyse (math); Frequenz; In situ; Lärmschutzwand; Messung; Norm (tech); Prüfverfahren; Reflexionsgrad; Reproduzierbarkeit; Rinanalyse; Schall; Statistik
Absorption; Analysis (math); Frequency; Group analysis (test); In situ; Measurement; Noise barrier; Reflectivity; Reproducibility; Sound; Specification (standard); Statistics; Test method
Volume (for the year ...):100
Issue / no.:6
First Page:1186
page number: Document ends on page ...:1201
Volltext: http://dx.doi.org/10.3813/AAA.918797
Außerdem waren folgende Einrichtungen an dem Versuch beteiligt: TNO (Niederlande), RWTH Aachen, CIDAUT (Spanien), AIT (Österreich), CSTB (Frankreich), LRPC Strasbourg (Frankreich), K.U. Leuven (Belgien).
Institutes:Abteilung Straßenverkehrstechnik
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 62 Ingenieurwissenschaften / 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
Licence (German):License LogoBASt

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