Newsletter 高速鐵路簡訊 . 交通部高速鐵路工程局
機場捷運台北車站(A1)絕對位置參考點(APR)移位改善工程簡介 Introduction to the APR Shifting Improvement Construction in TIAA MRT Taipei Main Station (A1)
左:APR進行移位施工。 右:APR移至定位後。

機場捷運系統測試期間,因於台北車站(A1)發車時,曾發生列車自動駕駛(ATO)故障,自動列車控制及駕駛顯示單元(ATC-DDU)顯示運行授權不明等,導致列車發生緊急剎車(EB),影響測試作業。後經各單位研析檢討原因,最終確定係因A1車站第1~4月台端出口位置之絕對位置參考點(APR006、APR010、APR014及APR018),因位置緊鄰月台,當列車停妥月台後,造成有時應讀取而未能讀取該APR之情形。又列車於出站時皆會再次讀取,以致ATO因邏輯判讀為列車位置錯誤,而將該路徑取消,導致列車無法ATO出發,造成列車班表延誤之情事。
經各單位多次會議討論及現地勘查後,確認並決定將該4個APR進行移位,並於105年10月12日先行進行移位,並以一列直達車及一列普通車進行測試,經多次來回於台北車站(A1)至三重站(A2)間實車測試後,皆未再發生EB,且行控中心行車控制系統代表列車之線條均顯示綠色,表示都能ATO進出站,故列車動態測試結果為成功,並於同年10月13日全車隊進行安裝新版地理圖資的ATC軟體(149版)。
統計改善前後車隊跑車測試結果,列車於台北車站(A1)已不再發生自動駕駛故障導致緊急煞車。

During the TIAA MRT system testing period, there were issues such as ATO failure and unknown authorization of auto-train control and ATC-DDU that caused emergency brake of the train which affected the testing operations. After discussion of related units, the cause was determined to be the abnormal locations of absolute position reference (APR) points, APR006, APR010, APR014 and APR018, of the first to fourth platform station exits of A1 Station. Since the APRs were very close to the platform, the train might fail to read the APR when it stoped at the platform. In addition, the train should read the APR once again when departing the platform which might result in location error via logical interpretation of ATO causing cancellation of the train. Thus, the train couldn't automatically operation and would cause delays in train schedule.
After discussion by various units and onsite inspection, the four APRs were confirmed and decided to be shifted on Oct. 12, 2016. Following was the testing of express train and commuter train repeatedly operating back and forth between Taipei Main Station (A1) and Sanchong Station (A2). Through the operation tests, there were no emergency brake incidents and the green line in OCC representing train status stayed green throughout the test showing the trains smoothly ATO in and out of station. The dynamic testing results were very successful. In addition on Oct. 13, 2016, the entire system was installed with the new edition of geospatial ATC software ( Ver.149).
Calculating the test results of before and after improvement construction, the trains passing through Taipei Main Station (A1) have not encountered emergency brake and ATO failure after improvement measures.

  • APR由綠色標示位置移至紅色標示位置。
  • APR移位前後列車發生ATO故障EB次數比較圖。
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