AASHTO T 389-20 Download


Standard Method of Test for Determining the Influence of Road Surfaces on Vehicle Noise Using the Statistical Isolated Pass-By (SIP) Method
standard by American Association of State and Highway Transportation Officials, 2020



AASHTO T 389-20 describes a procedure for measuring the influence of road surfaces on highway traffic noise. The Statistical Isolated Pass-By (SIP) Method provides a quantitative measure of the sound pressure level at locations adjacent to a roadway. The SIP method allows for the comparison of vehicle noise on roadways of varying surfaces and across studies by comparing measured sound levels to a reference noise curve.

Product Details

Number of Pages:
File Size:
1 file , 3.4 MB
Product Code(s):
T389-20-UL, T389-20-UL, T389-20-UL