PURPOSES : The tire-pavement interaction noise (TPIN) comprises four sources, among which the tire tread vibration noise (TTVN) and air pumping noise (APN) are known to be the most influential. However, when evaluating TPIN, the noise level is estimated based on the overall noise, because general noise measurement methods cannot separate TTVN and APN. Therefore, this study aims to develop a method to separate TTVN and APN in TPIN for quantitative assessment of pavement noise. METHODS : Based on the results of our literature review and frequency band noise data measured in our study, we identified the dominant frequency ranges for TTVN and APN. Additionally, we evaluated TTVN and APN across various pavement types. RESULTS : TTVN was found to be dominant in frequency bands below 800 Hz, while APN was dominant in frequency bands above 800 Hz. Additionally, regardless of the vehicle type, vehicle speed, or pavement type, APN exhibited higher levels compared to TTVN. This result shows that APN has a more significant impact on TPIN than TTVN. CONCLUSIONS : The separation method of TTVN and APN proposed in this study can be utilized to quantitatively assess the relationship between the primary noise sources in TPIN and the characteristics of pavement texture in future research. Furthermore, it is anticipated that characteristics of low TPIN and optimal texture conditions can be proposed to mitigate TPIN, thus contributing to the development of lownoise pavements.

1. 서론
2. 타이어 – 노면 소음의 분리를 위한 고찰
    2.1. 소리의 기본개념
    2.2. 타이어-노면 소음 분리 방안 고찰
    2.3. 타이어-노면 소음 분리 방안 선정
3. 타이어 – 노면 소음의 분리
    3.1. 타이어-노면 소음의 측정 및 데이터베이스 구축
    3.2. 주파수 대역별 소음 데이터를 활용한 에어 펌핑소음과 타이어 진동 소음의 분리 및 분석
4. 결론
REFERENCES

• 김재훈(한국건설기술연구원 국가건설기준센터, 박사후연구원) | Kim Jae hoon Corresponding author