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    Measuring and Visualizing Tire–Pavement Noise Using On-Board Sound Intensity

    Published: 2012

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    The Concrete Pavement Surface Characteristics Program (CPSCP) has recently developed guidelines and practices for reducing tire– pavement noise. The primary means for doing this is via measurements using the on-board sound intensity (OBSI) technique. OBSI measures tire-pavement noise at the source utilizing specialized microphones mounted to the outside of a vehicle, near the tire–pavement interface. Measurements are performed while the vehicle drives across the pavement being evaluated. To facilitate innovation, specifications have been developed based on an end-result approach. In this paper, a means for how to measure OBSI is provided, along with a means to interpret the as-constructed quality through visualization techniques. With it, the spatial variability of tire-pavement noise, as measured using OBSI, can be readily determined.


    pavement, tire–pavement noise, texture, noise, OBSI, on-board sound intensity, concrete

    Author Information:

    Rasmussen, Robert Otto
    The Transtec Group, Inc., Austin, TX

    Sohaney, Richard C.
    The Transtec Group, Inc., Austin, TX

    Committee/Subcommittee: E17.42

    DOI: 10.1520/STP104444