台灣的軌道運輸產業在近幾十年發光發熱，日益受到重視。因此列車營運的舒適性也開始受到大眾的重視，相關單位也制定了法規要求列車舒適性能，提升軌道運輸的品質。
依照ISO 2631-1與UIC 513R兩項舒適性指標規範，利用套裝軟體LabVIEW與MATLAB建立舒適度即時量測系統，並將利用台鐵局提供之自強號車種進行實車試驗測試，分為直線路段及曲線路段進行試驗，最後將舒適度結果配合台鐵局提供之列車自動防護系統所紀錄之車速、里程數據和軌道路線資料，進行比對分析，探究造成舒適性不佳之原因，評估未來應用於軌道檢查之可能性。
從結果分析得到直線路段舒適性優於曲線路段，且列車速度越高則舒適性越差。在舒適性不佳之原因方面，發現當列車經過道岔或是曲線半徑較小之路線會造成舒適性不佳。
研究成果未來可應用於軌道檢查方面，在排除道岔及過彎等路段影響後，將有檢查出軌道瑕疵的可行性，但目前尚須提升檢查之準確性及建立系統化檢查程序，讓舒適性指標不只針對列車本身，進而可以檢查軌道路線品質。

Taiwan's rail transportation industry is emitting light and heat in near decades. And it’s getting more attention gradually. Therefore, the comfort of train is becoming more important to passengers. The relevant units also developed specifications of comfort index in railway vehicle, to enhance the quality of rail transportation.
We follow ISO 2631-1 and UIC 513R that are comfort evaluation specifications, and use LabVIEW and MATLAB to build real-time comfort evaluation system. And Taiwan railways administration provided Tze-Chiang train to test the system. The testing line includes straight-line and curve-line. Finally, we combined comfort index data, ATP (Automatic Train Protection System) data of train and track information data to find out the reason that caused poor comfort, and assessed the feasibility of application to track inspection.
From the testing results analysis, the straight-line comfort index is better than curve-line comfort index and the higher the speed of train, comfort worse. The reasons for poor comfort are that when the train through turnout or small curvature route will cause poor comfort.
The research results can be applied to the track inspection in the future. There will feasible to check out rail defects after we excluded effect that turnout and small curvature route caused poor comfort. But, now we need to improve the accuracy of inspection and establish a systematic inspection program. Then, comfort index not only for the train itself, and thus can check the quality of the rail route.

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