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ARPN Journal of Science and Technology >> Volume 7, Issue 2, November 2017

ARPN Journal of Science and Technology

Noise Impact Analysis Using the Traffic Noise Model (TNM) Comparing Different Pavement Types Average vs. ARFC

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Author Jonghoon Kim, Ning Shu, Dan D. Koo
ISSN 2225-7217
On Pages 32-36
Volume No. 5
Issue No. 1
Issue Date February 01, 2015
Publishing Date February 01, 2015
Keywords Traffic Noise, Traffic Noise Model (TNM), Asphaltic Rubberized Friction Course Pavement


The Arizona Department of Transportation (ADOT) initiated the Quiet Pavement Pilot Program (QPPP) in 2002. Approximately 115 miles of freeways in the Phoenix Metropolitan area were resurfaced with Asphaltic Rubberized Friction Course (ARFC) to provide a smoother ride for motorists and quieter neighborhoods adjacent to the freeways. As part of the ADOT QPPP research efforts, this paper evaluated noise level variations and changes in recommended noise barrier heights by using the Arizona ARFC (AZ-ARFC) pavement-type parameters versus default average pavement-type parameters in the Federal Highway Administration (FHWA) Traffic Noise Model Version 2.5 (TNM 2.5). Three representative projects in the Phoenix Metropolitan area were selected for analysis. It was concluded that by placing Arizona ARFC pavement, an average of 2 dBA noise reduction can be achieved for future unmitigated noise levels. The average barrier height can be lowered by approximately 2 feet from approximately 15 feet to approximately 13 feet.

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