PURPOSES : Recently, attempts have been made to evaluate tire-pavement noise based on a measure of Mean Profile Depth (MPD). However, equivalent values of MPD appear to correspond to different levels of tire-pavement noise, which indicates that other factors such as texture wavelength need to be included to improve the accuracy of noise prediction. A single index to represent texture wavelength is proposed in this study. A consistent relationship between tire-pavement noise and texture wavelength on asphalt concrete pavement is observed.
METHODS: Profile data and tire-pavement noise data were collected from a number of expressway sections in Korea. In addition, texture wavelength was defined by a Peak Number (PN), which was calculated using profile data. Statistical analysis was performed to find the relationship between the PN and tire-pavement noise.
RESULTS: As a result of this study, a linear relationship between PN and tire-pavement noise is observed on asphalt concrete pavement.
CONCLUSIONS: Tire-pavement noise on asphalt concrete pavement can be predicted from PN information.

• 홍성재(강릉원주대학교 공과대학 박사과정) | Hong, Seong Jae
• 박성욱(강릉원주대학교 공과대학 전자공학과 부교수) | Park, Sung Wook
• 이승우(강릉원주대학교 공과대학 토목공학과 교수·공학박사) | Lee, Seung Woo 교신저자