Cooperative Highway Research Program Predicting Stop-and-Go Traffic Noise Levels (by Dr. Bowlby at Vanderbilt University) Ohio DOT I-675 Undeveloped Lands Noise Contour Study, Dayton, OH...Noise Analysis Methods... Home About Us Projects Achievements Training Contact Noise Analysis Methods Development Our Clients: USDOT Volpe Center FHWA Traffic Noise Model 2.5 Beta... Testing National Highway Institute Highway Traffic Noise Course Development FHWA Tire/Pavement Noise Tech Group Support Maryland State Highway Administration Assistance...

Version 2.5 has been the required prediction model for use on Federal-aid traffic noise studies. Our course is taught by Dr. William Bowlby, P.E. and Dr. Darlene Reiter, P.E...Noise Analysis Training Home About Us Projects Achievements Training Contact Noise Analysis Training Since May 2, 2005, the Federal Highway Administration s Traffic Noise Model...., with over 50 years of combined experience in traffic noise work. Bowlby & Associates has trained over 800 professionals in the use of TNM since the program s initial release in 1998...