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FHWA Traffic Noise Model Version 2.1 [supporting software]

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  • Corporate Creators:
    United States. Federal Highway Administration. Office of Planning, Environment, and Realty
  • Contributors:
  • Subject/TRT Terms:
  • Resource Type:
    Software
  • Right Statement:
    Public Domain
  • Geographical Coverage:
    United States
  • Edition:
    Version 2.1
  • Corporate Publisher:
    United States. Federal Highway Administration. Office of Planning, Environment, and Realty
  • Abstract:
    The Traffic Noise Model is the FHWA's computer program for highway traffic noise prediction and analysis. TNM has been updated many times to add new content and capabilities, address different bugs, and include improved software and modeling methods.

    The FHWA TNM Version 2.1 includes over 20 enhancements to the FHWA TNM Graphical User Interface (GUI). Some enhancements include: Hide Rows function now fully operational. Directional arrow keys now fully active for panning views in Barrier Design. Clicking on a background window will bring it to the foreground. When importing Stamina files, FHWA TNM now fully supports shielding factors. Dollar amounts in costs are now rounded to the nearest whole dollar. Barrier Design Table enhanced. Calculations for L_dn and L_den modified to incorporate accurate time-duration percentages. Changing object names (receiver, roadway, roadway segment, barrier, barrier segment, important barrier, important barrier segment, tree zones, building rows, ground zones, contour zones) and receiver comments do not invalidate results. Object inputs all dynamically linked to their respective tables. Adjustment Factors function redesigned. Status bar enlarged and redesigned. Barrier Input Table column widths resized to allow all fields to be displayed without horizontal scrolling.

  • Content Notes:
    National Transportation Library (NTL) Curation Note: This dataset has been curated to CoreTrustSeal's curation level "A. Active Preservation". To find out more information on CoreTrustSeal's curation levels, please consult their "Curation & Preservation Levels" CoreTrustSeal Discussion Paper" (https://doi.org/10.5281/zenodo.11476980). NTL staff last accessed this dataset at its repository URL on 2026-01-15. If, in the future, you have trouble accessing this dataset, please submit your question at https://transportation.libanswers.com. NTL staff will do its best to assist you at that time.
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    ZIP
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    urn:sha-512:0d8f28efa12a478440c4c7f4297bdd0b5ef0a38e3af6f92a696e895cc67a5a4e66507bdd65048db45e1c2fc646cc9db55206956107c3b36d340cfb95fc415858
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  • File Type:
    Filetype[ZIP - 1.36 MB ]
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