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Transportation Technology Center, Inc. (TTCI), with support from the Federal Railroad Administration, researched a new mode of train control proposed to increase operational efficiency where Positive Train Control (PTC) equipment has been installed and is operational. TTCI developed a concept of...
The Federal Railroad Administration (FRA) conducted a side impact test on a DOT-105 tank car at the Transportation Technology Center (TTC) to evaluate its performance under dynamic impact conditions and to provide data for the verification and refinement of a computational model. The tank car...
The U.S. Department of Transportation (DOT) John A. Volpe National Transportation Systems Center, under the direction of the DOT’s Federal Railroad Administration (FRA), Office of Research, Development and Technology, studied the effects of the implementation of quiet zones on trespass accidents...
The study revealed that it is possible to locate defects in the rail head within the desired precision if a recognizable feature such as a bolt hole, rail end, or weld are nearby; that is, the method presented provides an accurate distance from a known datum to within approximately ±0.5 inch....
The Short Line Safety Institute (SLSI) is dedicated to the continuous improvement of safety and safety culture across all short line and regional railroads in the United States. Strengthening a railroad’s safety culture creates a safer working environment that may result in less frequent or...
FRA regularly holds webinars to provide technical assistance to grantees and stakeholders. The links to the webinar recordings and presentation files are listed below for reference. If you would like to be added to FRA’s mailing list to learn about future trainings and events, please subscribe and select Program Delivery announcements.
In 2013, Transportation Technology Center, Inc. (TTCI) performed testing on the gage widened special trackwork segment designed for the ultrasonic automated cracked wheel detector system; and continues to perform well in 2020. The trackwork is assessed for the risk of wheel drop and back of...
This report describes an evaluation of the effects of increased crashworthiness performance on high-speed train weight. The crashworthiness features investigated include occupied volume strength, energy absorption systems, seats, and fire protection systems. In each case, a baseline...