PURPOSES : The initial smoothness of concrete pavement surfaces must be secured to ensure better driving performance and user comfort. The roughness was measured after hardening the concrete pavement in Korea. When the initial roughness is poor, relatively large-scale repair works, such as milling or reconstruction must be performed. Hence, a method to measure the roughness of the concrete pavements in realtime during construction and immediately correct the abnormal roughness was developed in this study.
METHODS : The profile of a concrete pavement section was measured at a construction site using sensors that were attached to the tinning equipment of the paver. The measured data included outliers and noise caused by the sensor and vibration of the paving equipment, respectively, which were further calibrated. Consequently, the calibrated data were input into the ProVAL program to calculate the roughness based on the international roughness index (IRI). Additionally, the profile of the section was re-measured using another method to verify the reliability of the calculated IRI.
RESULTS : The profile data measured at the concrete pavement construction site were calibrated using methods, such as overlapped boxplot outlier removal and low-pass filtering. The outlier data from the global positioning system (GPS), which was installed to identify the construction distance, was also calibrated. The IRI was calculated using the ProVAL program by matching the measured profile and GPS data, and applying the moving average method. The calculated IRI was compared to that measured using another method, and the difference was within the tolerance.
CONCLUSIONS : A method to measure the roughness of the concrete pavements in real time during construction was developed in this study. Hence, the performance of concrete pavements can be improved by enhancing the roughness of the pavement considerably using the aforementioned method.

ABSTRACT
1. 서론
2. 도로포장 평탄성의 측정과 계산
    2.1. IRI와 PRI에 의한 방법
    2.2. ProVaL 프로그램에 의한 IRI 계산방법
3. 시공 중 포장의 프로파일 측정방법
    3.1. 프로파일 측정용 센서
4. 콘크리트 포장 현장 실시간 프로파일 측정
    4.1. 실시간 프로파일 측정 결과
    4.2. 측정 프로파일 데이터의 보정
    4.3. 평탄성 측정 결과의 비교와 검증
5. 결론
REFERENCES

• 김진수(인하대학교 스마트시티공학과 석사과정) | Kim Jin Su
• 나계주(인하대학교 토목공학과 박사과정) | Na Gye Ju
• 정진훈(인하대학교 공과대학 사회인프라공학과 교수) | Jeong Jin Hoon Corresponding Author