On Jun. 4 and 22, there were 2 successive derailment incidents that happened on the TRA Hualien–Taitung Line which both belonged to major accidents according to the Railway Act. Therefore, according to Article 56.5.2 of Railway Act, Point 4.2 of “Operational Guidelines for MOTC Investigation on Major Railway Accidents” and the conclusion of the 10th Meeting of MOTC Investigation on the Processing of Major Railway Accidents, railway and civil engineering experts and scholars were hired to initiate a project investigation.The investigation party arranged visits to the scene of accidents and train locations on Jul. 5 and 6 to implement onsite environment simulations, construction procedure discussions and damaged vehicle survey with 4 project investigators and Executive Secretary Cheng-Chun Yang leading members of the Railways Supervision Task Force.
In accordance with the Railway Act, “MOTC shall employ professionals to investigate the cause and details of major railway accidents” and also the regulations in “Operational Guidelines for MOTC Investigation on Major Railway Accidents” formulated by MOTC in February 2015, the investigation of major accidents should regularly invite external experts to review the investigation results escalated by the railway organization as a principle and may need to initiate a project investigation when necessary. In addition to handling onsite investigation, project investigators may require the organization or relevant railway operational personnel to explain and provide supporting information.
The project investigators have carried out in-depth investigation regarding track and road maintenance, vehicle maintenance and other matters. Following the investigation will be identification of the cause of the accident on an impartial and objective stance and proposal of improvement matters demanding TRA to implement corresponding improvement measures.