Road traffic noise reducing devices - Procedures for assessing long term performance

This document specifies a method for evaluating the working life of noise reducing devices used alongside roads according to the relevant exposure conditions. It also specifies a method for determining the acoustic characteristic at the end of the working life.
ΚΩΔΙΚΟΣ ΠΡΟΪΟΝΤΟΣ: CYS EN 14389:2023
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This document specifies a method for evaluating the working life of noise reducing devices used alongside roads according to the relevant exposure conditions. It also specifies a method for determining the acoustic characteristic at the end of the working life.