TRB’s National Cooperative Highway Research Program (NCHRP) Report 791: Supplemental Guidance on the Application of FHWA’s Traffic Noise Model (TNM) provides state departments of transportation staff and other transportation professionals with technical guidance on using the FHWA TNM. FHWA has provided substantial guidance for the routine application of TNM, but scenarios exist for which there is no technical guidance. The report explores ways to model traffic-generated noise in a variety of settings that have not been addressed.
The project webpage includes Appendices A through L of the contractor’s final report.
National Academies of Sciences, Engineering, and Medicine. 2014. Supplemental Guidance on the Application of FHWA’s Traffic Noise Model (TNM). Washington, DC: The National Academies Press. https://doi.org/10.17226/22284.
|Chapter 1 - Introduction||2-2|
|Chapter 2 - Structure-Reflected Noise and Expansion-Joint Noise||3-10|
|Chapter 3 - Signalized Interchanges, Intersections, and Roundabouts||11-30|
|Chapter 4 - Area Sources||31-39|
|Chapter 5 - Median Barriers||40-44|
|Chapter 6 - Multilane Highways||45-48|
|Chapter 7 - Building Rows||49-64|
|Chapter 8 - Topography||65-68|
|Chapter 9 - Ground Zones||69-71|
|Chapter 10 - Tree Zones||72-73|
|Chapter 11 - Wind and Temperature Gradients||74-82|
|Chapter 12 - Parallel Barriers||83-90|
|Chapter 13 - Tunnel Openings||91-100|
|Appendices A through L||101-102|
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