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AASHTO T 390-20: The Continuous-Flow Traffic Time-Integrated Method (CTIM) describes the procedures for measuring the influence of road surfaces on highway traffic noise at a specific site. It provides a quantitative measure of the sound pressure level at locations adjacent to a roadway. Measurements capture the sound from existing traffic for all vehicles on all roadway lanes. Measurements also include propagation effects over the roadway pavement and adjacent terrain to the nearby measurement location.
Product Details
- Published:
- 2020
- Number of Pages:
- 22
- File Size:
- 1 file , 2.5 MB
- Product Code(s):
- T390-20-UL, T390-20-UL, T390-20-UL
