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Technical Reports

Performance Evaluation of Concrete Railroad Ties on the Northeast Corridor

Simpson Gumpertz & Heger Inc. conducted an investigation into the factors that caused widespread failure in prestressed concrete railroad ties on the Northeast Corridor. The problem was apparent in ties manufactured and installed circa 1994–1998. The work included a literature search, review of...

Best Practices and Strategies for Improving Rail Energy Efficiency

In support of the FRA Energy, Environment, and Engine (E3) program, this study reviews and evaluates technology development opportunities, equipment upgrades, and best practices (BPs) of international and U.S. passenger and freight rail industry segments for improving energy efficiency (E2)...

Workstation Table Crashworthiness Tests

This report describes results from the Option C component of a research program aimed at improving crashworthiness of passenger train workstation tables. Research conducted in the Base, Option A, and Option B components of the program was focused on developing a prototype design for a crashworthy...

Alternative Occupied Volume Integrity (OVI) Tests and Analyses

FRA, supported by the Volpe Center, conducted research on alternative methods of evaluating occupied volume integrity (OVI) in passenger railcars. Guided by this research, an alternative methodology for evaluating OVI that ensures an equivalent or greater level of safety than that provided by the...

Feasibility Study of Fiber-Optic Technology for Broken Rail Detection

This report describes the activities and presents the results of a feasibility study to examine the viability of using fiber-optic acoustic technologies to detect broken rails in railroad tracks. A fiber-optic test bed was constructed at Transportation Technology Center (TTC) that consisted of...