Skip to content U.S. Department of Transportation/Federal Highway AdministrationU.S. Department of Transportation/Federal Highway Administration
Office of Planning, Environment, & Realty (HEP)

Traffic Noise Model

FHWA TNM Version 2.1

The FHWA TNM Version 2.1 includes over 20 enhancements to the FHWA TNM Graphical User Interface (GUI). Some enhancements include:

The following documents are associated with the FHWA TNM Version 2.1:

  1. FHWA Traffic Noise Model Version 2.1 (1.4MB - requires Version 2.0 installed).
  2. FHWA Traffic Noise Model Version 2.0 (required for 2.1 - 5.7MB)
  3. FHWA Traffic Noise Model Version 2.1 (includes installation instructions) (PDF 26Kb) or HTML Release Notes.
Updated: 6/3/2016
HEP Home Planning Environment Real Estate
Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000