1515 バラスト軌道における高低変位進み急進箇所の検出手法(軌道管理,SS2:メンテナンス,コストダウン,第18回交通・物流部門大会(TRANSLOG2009))

概要

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In some locations, the growth rate of longitudinal level of track irregularity increases more than expected, which requires urgent maintenance work to keep ride comfort or running safety. However, it is difficult to detect such locations from seven track irregularity parameters that are usually monitored to manage track condition. Then, we focused on the time-variation of the track irregularity at locations where the growth rate of track irregularity had increased more then expected in order to detect the predictive sign of the increase of the growth rate. In this study, the combination of the 5m-chord versine and its growth rate was identify to be available for selection of the locations where track irregularity increases more than expected.
2009-12-02