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Accident Investigation Summary Report HQ-2023-1847
On May 10, 2023, Norfolk Southern Railway Company (NS) freight train 14M derailed nine cars at Milepost YG 75.56 on the NS Youngstown Line in New Castle, Pennsylvania. The derailment was caused by the failure of the left No. 1 (L1) roller bearing on car CRDX 3017, with the...
Detection of Rockfall-Prone Areas Through InSAR-SBAS Analysis
Identifying and monitoring rockfall- and landslide-prone areas is crucial for effective risk mitigation, as these geohazard events present significant challenges and hazards to railway operations and safety. Current geohazard prediction models do not identify specific areas where an event could...
Modeling the Effects of Top-of-Rail Products on Creep Forces in the Wheel-Rail Interface
The main aim of this project was to develop a wheel-rail creep force model that accounts for the effects of third-body layers resulting from the application of a range of top-of-rail (TOR) materials. Initially, researchers carried out experimental assessments of different types of TOR products...