The Federal Highway Administration (FHWA) has moved all the information previously on this website (www.trafficnoisemodel.org) to the following website: http://www.fhwa.dot.gov/environment/noise/tnm/index.htm

Please go to this FHWA website to gain information on the following:

• About the FHWA TNM
  • Background
  • Model Validation
  • How to Purchase
• Current Versions
  • FHWA TNM, Version 2.5*
  • FHWA TNM, Version 2.5 Look-up Tables
• Previous Versions: 2.1, 2.0, 1.1, 1.0b, 1.0a, 1.0
• Program Support
  • FHWA TNM FAQs
  • Email Technical Support*
  • Documents and References 
    

*It is important to point out that:

1. The FHWA TNM Version 2.5 Look-up Table Program is downloadable from this site. 

2. There is the capability to email TNM Tech Support. This is the same email address as before, which is received by Volpe staff and who will reply to your question/issue.

3. The TNM Forum has been shut down due to lack of funds.  FHWA is considering opening the forum for a limited period of time (1-2 years) when the FHWA TNM version 3.0 is released.

There will be a 6-month phase out of www.trafficnoisemodel.org (October 2007) at which time you will need to go directly to the FHWA website to gain information on FHWA's Traffic Noise Model.