01337461

Component

https://doi.org/10.3141/2233-16

http://scholar.google.com...avan&publication_year=2011

Acoustic measurements were made on several asphalt test pavements at the National Center for Asphalt Technology test track, including five porous pavements. Onboard sound intensity (OBSI) measurements were taken to quantify the tire–pavement noise source strength as a function of pavement parameters. The OBSI results fell into three pavement groupings based on spectral shape. More than other parameters, these groupings were determined by whether the pavement was porous or not and whether it was new or older. The OBSI results also indicated that single-layer porous pavements were particularly effective at reducing tire–pavement noise source strength at frequencies above 1,250 Hz for designs 18 to 33 mm thick. For a thicker, double-layer porous pavement, source strength reductions extended down to 630 Hz. Porous pavements were also found to be effective in reducing the source strength of the tire–pavement interaction by reducing some tire noise mechanisms and by reducing the sound power level of the source through local sound absorption. Testing was also conducted to evaluate the additional attenuation for sound propagating over porous, sound-absorbing pavements compared with nonporous pavements. From the propagation measurements, all porous pavements produced additional sound attenuation over that produced by the nonporous pavements. The additional attenuation also increased with distance from the source.

01358580

11-3807

English

pp 135-144

2011

Transportation Research Record: Journal of the Transportation Research Board

9780309167499

Print

Figures (8) ; Photos (7) ; References (9) ; Tables (1)

Asphalt pavements; Pavement layers; Porous pavements; Sound absorption; Sound attenuation; Sound transmission; Surface course (Pavements); Thickness; Tire/pavement noise

On Board Sound Intensity

Design; Environment; Highways; Pavements; I15: Environment; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces

TRIS, TRB, ATRI

Feb 17 2011 6:39PM

• Assessing Effects of Operational Efficiency on Pollutant Emissions of Nonroad Diesel Construction Equipment
• Characteristics of Low-Speed Vehicle-Specific Power Distributions on Urban Restricted-Access Roadways in Beijing
• Characterization of On-Road Emissions of Compressed Natural Gas and Diesel Refuse Trucks
• Comparison of Air Quality–Related Mortality Impacts of Different Transportation Modes in the United States
• Corridor-Level Air Quality Analysis of Freight Movement: North American Case Study
• Costs of Automobile Air Emissions in U.S. Metropolitan Areas
• Determining End Limits of Quieter Pavement Projects
• Ecological Assessment Process and Credit System for Highway Capacity Projects
• Effects of Aging on Tire–Pavement Noise Generation for Concrete Pavements of Different Textures
• Evaluating Effects of Engine Operating Variables on Particle Number Emission Rates Using Robust Regression Models
• Evaluation of Effectiveness of Coordinated Signal Control in Reducing Vehicle Emissions During Peak Hours Versus Nonpeak Hours
• Evaluation of Variables Affecting Sustainable Highway Design With BE²ST-in-Highways System
• Integrated Bus Information System: Vehicle Procurement Resource for Transit
• MOVES Versus MOBILE: Comparison of Greenhouse Gas and Criterion Pollutant Emissions
• Onboard, Real-World Second-by-Second Particle Number Emissions from 2010 Hybrid and Comparable Conventional Vehicles
• Port Authority of New York and New Jersey Criterion Pollutant and Greenhouse Gas Emission Inventory: Calendar Years 2006 to 2008
• Port Columbus, Ohio, International Airport Southwest Noise Berm–Wall Project: Comparison of General Prediction Method and ISO 9613-2 Computations
• Reflections from Highway Noise Barriers and Use of Absorptive Materials in the United States: Why Small Increases in Noise Levels May Deserve Serious Consideration
• Statistical Approach to Estimating Truck Traffic Speed and Its Application to Emission Inventory Modeling
• Using an Activity-Based Framework to Determine Effects of a Policy Measure on Population Exposure to Nitrogen Dioxide