Federal Highway Administration May 8, 2013 – Federal Register Recent Federal Regulation Documents

The FHWA requests input from stakeholders and interested parties on expanding the specific pavement types used in Federal-aid highway traffic noise analyses. Current highway traffic noise analyses rely on data from three pavement types: dense-graded asphaltic concrete (DGAC), open-graded asphaltic concrete (OGAC), and Portland cement concrete (PCC). Prediction of future noise levels is based on the ``average'' pavement type, calculated as the average of the DGAC and PCC vehicle noise emission levels. The FHWA is issuing this Federal Register Notice to invite stakeholders and interested parties to provide comments and suggestions on whether and how to include additional pavement types in Federal-aid highway traffic noise analyses.