Posts Tagged ‘ADC40’

Interest in Tire Pavement Noise Keeps Rolling at TRB Annual Meeting

Wednesday, February 16th, 2011

by Doug Barrett

The Transportation Research Board (TRB) held its 90th Annual Meeting in Washington DC from January 23-37. Although I’ve attended many of these meetings, the size and breadth of the annual meeting always astonish me. This year’s meeting set a new record (over 10,900) and, as usual, there were workshops and sessions covering everything under the sun related to transportation.

As the primary source of traffic noise, tire-pavement noise continues to be a hot topic in the highway noise world. Although the ADC40 Committee on Transportation-Related Noise and Vibration is just one small part of the annual meeting, in recent years the Committee has broadened its scope by co-sponsoring sessions with other committees. This year, ADC40 co-sponsored three workshops or sessions on tire-pavement topics. Sunday morning’s workshop titled “Implementing Noise-Reducing Pavement Research, an International Perspective: Making Pavement Research Results Work in Practice” was followed by Monday’s session on the “Effect of Asphalt Mixture Composition on Friction and Noise,” and Wednesday’s “Tire-Pavement Noise” session. Co-sponsors of these workshops/sessions included the Committees on Surface Properties-Vehicle Interaction (AFD90), Characteristics of Asphalt-Aggregate Combinations to Meet Surface Requirements (AFK40), and Pavement Maintenance (AHD20).

One topic covered during these sessions was the use of On-Board Sound Intensity (OBSI) measurements. OBSI has gained widespread acceptance throughout the U.S. as a standardized approach for quantifying tire-pavement noise. Recently, HMMH conducted OBSI measurements at locations throughout Virginia, on behalf of the Virginia Department of Transportation (VDOT). The VDOT measurements are part of an ongoing program to document the long-term benefits of pavement overlays. OBSI measurements, however, not only can document the noise reduction benefits of quieter pavements, but also can help to identify louder pavements. As the noise program manager for another DOT said, his state’s ongoing OBSI test program is not about finding the quietest pavements – it’s about identifying the loudest ones!

OBSI Measurement

OBSI Measurement

Report from TRB 2010 Annual Meeting

Wednesday, January 27th, 2010

by Mary Ellen Eagan

At long last, a report from the 2010 Annual TRB Conference.  My focus is on the workshop, committee meetings, and sessions that were sponsored or co-sponsored by the Committee on the Environmental Impacts of Aviation (AV030).  Here’s my three days at TRB, in chronological order:

Sunday’s Workshop The Costs of Cleaner: Aviation’s Emissions Inventories and Economic Consequences of Their Reduction included three presentations with very different lenses on the climate change issue:

The Committee on Environmental Impacts of Aviation (AV030) held its meeting Monday morning (yours truly presiding – please let me know if you’re interested in joining our mailing list).  In addition to discussion of committee business, there were two student paper presentations:  Analysis and Control of Airport Departure Processes to Mitigate Congestion Impacts by Ioannis Simaiakis of Massachusetts Institute of Technology, and Lung Deposition of Jet Engine Exhaust Particulate Matter by Elizabeth A. Black of Missouri University of Science and Technology.  The Sustainability Subcommittee also met on Monday, and included a third paper presentation, Mitigating Aviation Carbon Dioxide Emissions: An Analysis for Europe by Lynnette Dray of the University of Cambridge.  The Noise Subcommittee meeting (a joint subcommittee with the Committee on Transportation Noise, ADC40) included presentations by Raquel Girvin on Noise Effects Characterization and Mitigation Research and Lynn Engelman on the DOD Aviation Noise Program.  We also announced the formation of a new Water Resources Subcommittee, which will be ably led by Thomas Klin of CH2M Hill.

AV030 sponsored or co-sponsored three technical sessions:

As you can probably infer from this recitation of meetings and papers, attending TRB’s annual meeting can be a bit like drinking from a fire hose.  My advice to newcomers is pacing (those 9 pm sessions can really do you in), but I have always found the sessions to be informative and stimulating.  And I usually find that something about one (or more) of the sessions finally sinks in sometime later.  I’ll check back in then.