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A previously developed methodology for reducing the physical scale of test articles for fire performance testing of rail car floors was benchmarked using a series of large-scale tests and validated finite element simulations. The simulations showed that the experimental differences between the...
Researchers crash-tested off-the-shelf wheelchair securement devices in a train-to-train impact test at the Transportation Technology Center in Pueblo, Colorado, on August 11, 2022. Two wheelchair securement devices and one backboard (baseline experiment) were each tested with a Hybrid III 50th...
The Federal Railroad Administration (FRA) co-sponsored Transportation Technology Center, Inc. (TTCI) on a trackwork inspection effort scheduled for completion in September 2022. This research demonstrated the potential for the low-frequency ultrasonic testing (UT) nondestructive evaluation (NDE...
On March 5, 2022, at 1:58. a.m., EST, a Norfolk Southern (NS) freight train (Y92H202) derailed at Milepost 71 on the Northeast Corridor in Perryman, Maryland, resulting in 20 cars derailed and $2,665,277 of damage to rail equipment and track. There were no injuries reported.
The...
On Tuesday, January 25, 2022, at approximately 9:30 a.m., CST, a Canadian Pacific Railway (CP) train (B36-19) collided with a school bus at the 130th Avenue highway-rail grade crossing (DOT# 385195D) in the city of Castalia, Winneshiek County, Iowa.
The school bus had three occupants,...
This document highlights the complex nature of rail suicide data collected from international peer-reviewed articles, and from the United States. The purpose of this effort is to identify the types of rail suicide data that exist, and to understand how they can be used to develop and select...
The Federal Railroad Administration (FRA) contracted Transportation Technology Center, Inc. (TTCI) to expand on existing mechanics-based ballast condition forecasting models. This report demonstrates how one of the mechanics-based models performs against field data and makes recommendations for...