| Title | A Preliminary Application of Risk Management of Railway Transportation Safety—A Case Study of Risk Analysis and Evaluation for the Taiwan Railway Administration |
| Dept | Transportation Safety Division |
| Year | 2012 |
| Month | |
| Price | |
| Summary | As a follow-up to the 2010 study “A Preliminary Application of Risk Management to Railway Transportation Safety - A Case Study of Risk Identification for Taiwan Railway Administration”, this study has continued to focus on the subject with the second and third steps in risk management - risk analysis and risk evaluation. The study reviewed the common risk analysis methodologies and risk evaluation principles in practice, as well as with hands-on experiences in railway systems both domestic and abroad. Two particular hazards of collisions at railroad crossings and passengers falling while boarding or alighting were selected for further study.
Because collisions at railroad crossings involve equipment, environment, manpower, and many other factors, this study adopted Fault Tree Analysis (FTA) and Event Tree Analysis (ETA) to perform risk analysis. We discovered automobile driving to be the main cause of collisions at railroad crossings, of which, misjudgment of train's arriving time, failure to keep a safe distance, and misjudgment of not entering were the key elements. Based on data from 2008~2010, this hazard was evaluated to be among the must-reduce hazards, and improvement measures must be taken immediately. Passengers falling while boarding or alighting were mostly due to human error. Hence, this study adopted Human Error Assessment and Reduction Technique (HEART) to conduct analysis. We found that perception failure, decision failures, and omission were the main factors for this issue. Based on the same data between 2008~2010, this hazard fell on the ALARP (As Low As Reasonably Practicable) zone. In other words, improvement may be taken under reasonable and feasible conditions. |
| Post date | 2012/11/21 |
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