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  • Caltrans Quieter Pavement Manual Now Available Online

    Caltrans' guidance document, entitled "Quieter Pavement:Acoustics Measurement and Performance", is now available online at: www.dot.ca.gov/env/noise/docs/quieter-pavement.pdf

    The document was devleoped by Illingworth & Rodkin, Inc., in cooperation with ICF and Caltrans and contains a basic overview of tire‐pavement noise and how it relates to highway traffic noise, a synthesis of quieter pavement research conducted by or initiated by Caltrans over the past 18 years, a summary of current applicable policy and measurement methodology, and recommended best practices for quieter pavement design.The relative tire‐ pavement noise levels of more than 700 pavements are indexed in the associated appendix.

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