Chapter 18 - Noise Guide
Revised on April 10, 2017 by Design-Bulletin 2017-1 "Noise Guide Changes".
https://www.codot.gov/business/designsupport/bulletins_manuals/roadway-design-guide/chp-18-noise-guide
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Chapter 18 - Noise Guide
Revised on April 10, 2017 by Design-Bulletin 2017-1 "Noise Guide Changes".