Evaluating Pavement Strategies and Barriers for Noise Mitigation (2013) / Chapter Skim
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1 Background Over the past decade, consideration of quieter pavement as an alternative to barriers for highway noise mitigation has been advanced by highway agencies and the public. As an abatement measure, barriers have a higher initial cost than quieter pavements but have lower ongoing costs due to minimal maintenance requirements.
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2In addition to accounting for economic features and acoustic longevity, the methodology provides a means for evaluating feasibility and reasonableness on the basis of overall noise reduction attributable to insertion of the barrier, use of the pavement, or a combination of the two instead of insertion loss only as is done currently. In addition to feasibility and reasonableness, a third evaluation parameter, effectiveness, has been included to go beyond the relative measures of insertion loss and noise reduction to consider the absolute level performance of the noise abatement.
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