Recently, many concrete slab tracks have been adopted in high-speed railway. However, it is vulnerable to roadbed settlement compared to gravel tracks. Therefore, it was necessary to evaluate the long-term performance about roadbed and track of the concrete slab track. In this paper, the performance of track and roadbed is evaluated using long-term high-speed rail data. The measurement items are the Wheel load, Lateral load, Acceleration, Road pressure. The measurement period is from the beginning of construction to three years after opening. For the measurement method, a representative value of the measurement data was selected and compared with the reference value.

Abstract
 1. 서 론
 2. 장기측정 및 성능평가방법
 3. 평가결과 및 고찰
 4. 결 론
 참고문헌

• 정재현(지구환경전문가그룹 건설환경사업부) | Jung, Jae Hyun 교신저자
• 고석민(지구환경전문가그룹 건설환경사업부) | Koh, Seok Min
• 최찬용(한국철도기술연구원 첨단인프라연구팀) | Choi, Chan Yong