PURPOSES : The purpose of this study is to estimate the reduction in traffic noise in a double-layered specific porous pavement at roadsides based on variations in traffic volume and driving speed.
METHODS : A statistical pass-by (SPB) method was employed in this study to measure noise. Variations in the following parameters were measured: running speed, heavy traffic percentage, and traffic volume.
RESULTS : Quantitative analysis revealed that the double-layered porous pavement reduced noise levels by 9.16 dB(A) at a 95% confidence level at the sides of roads.
CONCLUSIONS : As a countermeasure of traffic noise, porous pavement has been recommended. This research quantitatively proved that double-layered porous pavement can reduce traffic noise by more than 9.0 dB(A) at roadsides

ABSTRACT
1. 서론
2. 문헌연구고찰
3. 측정 대상 구간 및 측정 방법
    3.1. 대상구간
    3.2. 도로 교통소음 측정방법
    3.3. 측정변수
    3.4. 측정결과
4. 소음 측정결과의 분석
    4.1. 개요
    4.2. 평균비교
    4.3. 상관관계
5. 결론
REFERENCES

• 유인균(한국건설기술연구원) | Yoo In Kyoon 교신저자
• 이수형(한국건설기술연구원) | Lee Su Hyung
• 한대석(한국건설기술연구원) | Han Dae Seok