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http://dx.doi.org/10.7782/JKSR.2015.18.1.63

Characteristics of Track Irregularities on Kyoungbu High-speed Line  

Choi, Il-Yoon (Advanced High-speed Railroad Systems Research Division, Korea Railroad Research Institute)
Lee, Jun S. (Advanced High-speed Railroad Systems Research Division, Korea Railroad Research Institute)
Um, Ju-Hwan (Future Transportation Systems Research Division, Korea Railroad Research Institute)
Kang, Tae-Ku (Korail)
Choi, Min-Ji (Advanced High-speed Railroad Systems Research Division, Korea Railroad Research Institute)
Publication Information
Journal of the Korean Society for Railway / v.18, no.1, 2015 , pp. 63-70 More about this Journal
Abstract
Track irregularities have a strong influence on the safety and the ride comfort of trains as well as track maintenance work. A statistical analysis was conducted for track irregularities data measured in Kyoungbu high speed line using a track recording car(EM120). First, the characteristics of EM120, which adopted versine measurement system, were investigated and the transfer function of EM120 was examined. The distributions of the surface and the alignment which have short wavelength were considerably high and the distribution decreased as wavelength increases. A distribution analysis of the wavelength was carried out according to EN standards and most of the track irregularities were in a D1 wavelength range. The distributions of the amplitude of track irregularities were also investigated and the results show that the distributions of track irregularities decrease rapidly as amplitude increases. These results may be helpful in making track maintenance plans and revising track irregularities criteria.
Keywords
Track irregularities; KTX; Wavelength distribution;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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