GB/T 20243.1 - 2006 is a standard in the field of acoustics, focusing on the measurement of the impact of road surface on traffic noise. This part adopts the statistical pass method, and the purpose of measurement is to evaluate the effect of road surface characteristics on traffic noise. The applicable scenarios of this method are described in detail, and the operation process of analyzing the relationship between road surface and traffic noise by arranging measurement points on specific road sections and counting noise data when vehicles pass through is introduced. It provides specifications for accurate measurement of the impact of road surface on traffic noise, and helps noise prevention and control in traffic planning and road construction.