[LTA Update on Train Incident at Joo Koon Station]
陸路交通管理局就裕群站之列車事故的最新回應(中文譯本)
This morning at about 8.18am, a train heading in the direction of Tuas Link Station stopped at Joo Koon Station to detrain passengers due to an anomaly in the train signalling system. At 8.19am, a second train stopped 10.7 metres behind the first stationary train. This is in accordance with the safety protocol of the signalling system protection that ensures safe stopping distance between two trains. At 8.20am, after detrainment, the first train’s doors closed and before this train could move off, the second train, activated by the signalling system, moved towards the first train and hit it.
是日早上8時18分,一列前往大士連站的列車因遇上訊號系統異常而於裕群站暫停服務;在早上8時19分,第二列列車駛至前面列車10.7米後的位置,因訊號系統確保兩車距離的保護措施而停下。於早上8時20分,在乘客全部落車後,前面列車已關妥車門準備駛離,但尾隨列車突然收到通行訊號並前駛,最後撞到前面列車。
Thales, LTA and SMRT are investigating the incident.
訊號系統承辦商 Thales、陸交局及營運者新加坡地鐵正在調查事件。
The preliminary finding was that the first train departed Ulu Pandan Depot with a software protection feature, but the feature was inadvertently removed when the first train passed by a faulty signalling circuit. This train then arrived at Joo Koon station without the feature. The removal of this feature resulted in the first train giving off a train profile on the new signalling system of a three-car train instead of a six-car train. As a result, the second train detected the first train as a three-car train and misjudged the distance between the two trains, therefore resulting in the collision.
初步調查發現,前列列車隸屬烏魯班丹車廠,並載有行車保護軟件,但該軟件於列車駛過故障訊號電路時被意外停用。此列車是以無此保護的情況駛至裕群站。由於失去此保護軟件,新訊號系統誤以為是列為三卡列車而非六卡列車,因此誤判兩車距離,並導致碰撞發生。
Thales has confirmed the old and new signalling systems continue to be safe for operation. The East-West Line is currently running on the old signalling system from Pasir Ris to Pioneer, and the new signalling system from Joo Koon to Tuas Link. As a precautionary measure, trains will go through an additional layer of control measures and manual checks before they are deployed. Operations from Joo Koon to Tuas Link will also be suspended on 16 Nov 2017, while we conduct assurance checks with Thales. Bus bridging will be deployed for the affected stretch for the duration of the suspension.
訊號系統承辦商已確定新、舊訊號系統仍能安全地運作。東西綫巴西立至先鋒站一段仍使用舊訊號系統,而裕群至大士連站一段則已採用新訊號系統。作為預防措施,列車會加設額外安全措施,並人手檢查方會載客,以保安全。來往裕群及大士連的列車服務亦會於2017年11月16日暫停服務,以配合承辦商的進一步檢查。來往受影響車站的接駁巴士服務會在服務暫停期間繼續提供。
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