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Title |
Evaluation of the Railroad Track Life Cycle Based on the Metro Rail Wear Data Regression Analysis
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Authors |
정민철 ; 김정훈 ; 이지하 ; 강윤석 ; 공정식 |
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Keywords |
마모데이터 ; 지하철 궤도 ; 궤도구성품 ; 수명산정 ; LCP ; 확률적 평가 ; 다중회귀분석 Wear data ; Railway track ; Railway track components ; Life Cycle Assessment ; LCP ; Probabilistic Evaluation ; Multiple regression analysis |
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Abstract |
The wear of railway track affects loss of rough ride, noise or vibration of train and traveling safety. Moreover as the track is worn away, this promotes destruction of structural mechanism of rail track which can bring about increasing of rail track maintenance cost drastically. For this reason, it is very important and interested research subject to design railway track structure and to analyse train movement mechanism based on systematic analysis of the reasons causing rail wear possible in real field. In this research, for the efficient maintenance, Life Cycle Performance of rail track and maintenance characteristics are computed considering some track components such as track type, contracting type, sleeper type and roadbed type. Time ? Wear probabilistic distribution relationship as well as multiple regression analysis based on time, curvature and wear data are computed to predict the service life remainder of railway track and to be adapted to safety assessment.
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