Broken rails are the most common cause of severe freight-train derailments on American railroads. Reducing the occurrence of broken-rail-caused derailments is an important safety objective for the railroad industry. The current practice is to periodically inspect rails using non-destructive technologies such as ultrasonic inspection. Determining the optimal rail defect inspection frequency is a critical decision in railway infrastructure management. There is a seasonal variation in the occurrence of broken rails that result in train derailments. This paper quantifies the effect of this seasonal variation on the risk-based optimization of rail inspection frequency. This research can be incorporated into a larger framework of broken rail risk management to improve railroad transportation safety.
- Rail Transportation Division
Seasonal Effect on the Optimization of Rail Defect Inspection Frequency
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Liu, X, Dick, CT, Lovett, A, Saat, MR, & Barkan, CPL. "Seasonal Effect on the Optimization of Rail Defect Inspection Frequency." Proceedings of the ASME 2013 Rail Transportation Division Fall Technical Conference. ASME 2013 Rail Transportation Division Fall Technical Conference. Altoona, Pennsylvania, USA. October 15–17, 2013. V001T01A008. ASME. https://doi.org/10.1115/RTDF2013-4711
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