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http://dx.doi.org/10.7734/COSEIK.2012.25.4.331

Application of Time-Series Model to Forecast Track Irregularity Progress  

Jeong, Min Chul (고려대학교 건축사회환경공학부)
Kim, Gun Woo (고려대학교 건축사회환경공학부)
Kim, Jung Hoon (고려대학교 건축사회환경공학부)
Kang, Yun Suk (한국철도기술연구원 고속철도연구본부)
Kong, Jung Sik (고려대학교 토목환경공학과)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.25, no.4, 2012 , pp. 331-338 More about this Journal
Abstract
Irregularity data inspected by EM-120, an railway inspection system in Korea includes unavoidable incomplete and erratic information, so it is encountered lots of problem to analyse those data without appropriate pre-data-refining processes. In this research, for the efficient management and maintenance of railway system, characteristics and problems of the detected track irregularity data have been analyzed and efficient processing techniques were developed to solve the problems. The correlation between track irregularity and seasonal changes was conducted based on ARIMA model analysis. Finally, time series analysis was carried out by various forecasting model, such as regression, exponential smoothing and ARIMA model, to determine the appropriate optimal models for forecasting track irregularity progress.
Keywords
track irregularity; EM-120; forecasting model; time series analysis; regression analysis; exponential smoothing; Auto-Regressive Moving Average(ARIMA) Model;
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