Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Demonstration Project: The Measurement of Pavement Noise on New Jersey Pavements Using the NCAT Noise Trailer
A demonstration project was conducted for the New Jersey Department of Transportation (NJDOT) to evaluate the measurement of pavement/tire noise on New Jersey pavements. The pavement/tire noise is defined as the noise directly produced by the tire traveling over the pavement surface. It does not consider other traffic-related noise such as automobile/truck engines, braking, etc. This is important since the only factor the NJDOT can truly control to aid in the traffic noise reduction is the pavement surface. The demonstration project was developed to provide two key pieces of information: (1) An evaluation of the NCAT Noise Trailer as a means of measuring pavement/tire related noise, and (2) To develop an initial database of noise values for different pavement surfaces that are typically encountered on New Jersey highways. The NCAT (National Center for Asphalt Technology) Noise Trailer uses the Close-Proximity Method (CPX) to measure the pavement/tire noise levels. In this method, microphones are placed near the pavement/tire interface to directly measure the pavement/tire noise levels. The microphone set-up and tires are enclosed in a chamber that is insulated with noise absorbing insulation. This provides an enclosure that is only measuring the noise developed by the pavement/tire interface and not any external noise of the passing vehicles or environment.
Demonstration Project: The Measurement of Pavement Noise on New Jersey Pavements Using the NCAT Noise Trailer
A demonstration project was conducted for the New Jersey Department of Transportation (NJDOT) to evaluate the measurement of pavement/tire noise on New Jersey pavements. The pavement/tire noise is defined as the noise directly produced by the tire traveling over the pavement surface. It does not consider other traffic-related noise such as automobile/truck engines, braking, etc. This is important since the only factor the NJDOT can truly control to aid in the traffic noise reduction is the pavement surface. The demonstration project was developed to provide two key pieces of information: (1) An evaluation of the NCAT Noise Trailer as a means of measuring pavement/tire related noise, and (2) To develop an initial database of noise values for different pavement surfaces that are typically encountered on New Jersey highways. The NCAT (National Center for Asphalt Technology) Noise Trailer uses the Close-Proximity Method (CPX) to measure the pavement/tire noise levels. In this method, microphones are placed near the pavement/tire interface to directly measure the pavement/tire noise levels. The microphone set-up and tires are enclosed in a chamber that is insulated with noise absorbing insulation. This provides an enclosure that is only measuring the noise developed by the pavement/tire interface and not any external noise of the passing vehicles or environment.
Demonstration Project: The Measurement of Pavement Noise on New Jersey Pavements Using the NCAT Noise Trailer
T. Bennert (Autor:in) / D. Hanson (Autor:in) / A. Maher (Autor:in)
2004
34 pages
Report
Keine Angabe
Englisch
Noise Pollution & Control , Highway Engineering , Transportation , Asphalt pavements , The noise , Tire pavement interface , New Jersey , Traffic noise , Noise pollution control , Pavement surface texture , Noise reduction , Evaluation , Roads and highways , Measurements , Testing , Demonstration projects , National Center for Asphalt Technology
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