Volume 36, Issue 1 (January 2008)

    Field Evaluation of Tire-Road Noise Using a New Close Proximity Method

    (Received 3 April 2007; accepted 15 September 2007)

    Published Online: 2007


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    A new close proximity (NCPX) method has been proposed and applied for the tire-road noise characterization of highway traffic. The implementation of NCPX is based on a set of surface microphones that is attached to a vehicle to directly measure the tire noise. To consider a combined effect of vehicle and road factors, a comprehensive field test has been performed with seven vehicle types at nine pavement sections of the test road. Testing parameters also include a vehicle speed ranging from 50 to 120 km/h, and two driving modes are applied at each speed: coasting and steady. It is found that asphalt pavements are quieter than all concrete pavements irrespective of testing conditions. Among concrete pavements, an 18-mm longitudinally-tined surface exhibits the quietest noise level, while a random transversely-tined surface is ineffective in minimizing the tire noise. Finally, the effect of a heavy axle load on the tire/noise generation is discussed.

    Author Information:

    Seung Cho, Dae
    Department of Naval Architecture & Ocean Engineering, Pusan National University, Busan,

    Seo, Youngguk
    Korea Expressway Corporation Test Road Center, Expressway & Transportation Technology Institute, Korea Expressway Corporation, Kyung-ki, Dongtan, Hwasung

    Muk Choi, Tae
    Senior Researcher, Createch Co., Busan,

    Stock #: JTE101172

    ISSN: 0090-3973

    DOI: 10.1520/JTE101172

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    Title Field Evaluation of Tire-Road Noise Using a New Close Proximity Method
    Symposium , 0000-00-00
    Committee E17