Skip to main content

VIEW LARGER COVER

Download Free PDF
Read Free Online
Buy from TRB.org

TRB's National Cooperative Highway Research Program (NCHRP) Web-Only Document 225: Appendices to NCHRP Research Report 842 contains nine appendices to

NCHRP Research Report 842: Mapping Heavy Vehicle Noise Source Heights for Highway Noise Analysis

. NCHRP Research Report 842 provides an analysis to determine height distributions and spectral content for heavy vehicle noise sources. The report also explores establishing and beginning the development of an extended heavy vehicle (truck and bus) noise source database for incorporation into traffic noise models, including future versions of the U.S. Federal Highway Administration (FHWA) Transportation Noise Model (TNM) acoustical code.

Topics

Suggested Citation

National Academies of Sciences, Engineering, and Medicine. 2017. Appendices to NCHRP Research Report 842. Washington, DC: The National Academies Press. https://doi.org/10.17226/24703.

Import this citation to:

Publication Info

8.5 x 11 |  DOI: https://doi.org/10.17226/24703
Chapters skim
Front Matter i-iv
Appendix A - Description of Measurement Sites 1-12
Appendix B - On-Board Sound Intensity Results 13-19
Appendix C - Statistical Isolated Pass-By Discussion 20-47
Appendix D - Additional Contour Analysis for Heavy Trucks 48-70
Appendix E - Methods of Frequency Weighting 71-105
Appendix F - Two-Point Source Distribution Development 106-112
Appendix G - Barrier/ Distribution Analysis 113-141
Appendix H - Medium Trucks Discusson 142-157
Appendix I - Light Vehicles & Buses Final 158-170

What is skim?

The Chapter Skim search tool presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter. You may select key terms to highlight them within pages of each chapter.

loading iconLoading stats for Appendices to NCHRP Research Report 842...