レールおよび道床状態を考慮した軌道保守方法の最適選択モデルの構築

摘要

材料保守を含む軌道保守計画の適正化を支援するためrnに，レール及び道床状態を考慮した軌道保守方法の最適rn選択モデルを構築した。本モデルの精度や適用可能な範rn囲については，今後，更に検証を進める予定である。%Through appropriate maintenance work, railway track irregularities must be kept at a satisfactory level with the minimum maintenance cost for a long term. Therefore, we have developed an optimal decision making model for track maintenance strategy such as tamping, rail grinding, rail replacement and ballast replacement schedule by considering the degradation level of both rail and ballast. In order to determine the economical strategies, the model was developed from the result of statistical model analyses by considering both the influence of track material deterioration on the interval time for tamping work and the effect derived from track material maintenance. By using the model, we can obtain the optimal track maintenance strategy. The output of the model indicates the sections for which maintenance must be executed.