Supplemental Guidance on the Application of FHWA’s Traffic Noise Model (TNM) (2014) / Chapter Skim
Currently Skimming:
Pages 69-71
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 69... ...
69 C H A P T E R 9 This chapter focuses on guidance on the use of ground zones within FHWA TNM. Appendix H (available on the NCHRP Project 25-34 web page at http://apps.trb.org/cms feed/TRBNetProjectDisplay.asp?
|
From page 70... ...
70 9.2.2 Resulting Guidance for TNM Input 9.2.2.1 Expanded Set of EFR Values The Volpe Center's expanded set of EFR values for various ground types is collected mostly from the acoustics literature (see Table 13)
|
From page 71... ...
71 TNM users will want to be aware of this tendency when computing sound levels at distances beyond 500 ft. 9.3 Bodies of Water 9.3.1 Background Large bodies of water often require a TNM ground zone as input.
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.