Technical Reports
Handbook for Railroad Track Stabilization Using Lime Slurry Pressure Injection
This handbook includes chapters dealing with the technology of lime injection, surface and subsurface soil exploration and laboratory testing, environmental considerations and safety precautions. In addition, there are appendices which provide state-of-the-art specifications for lime slurry...A Bibliography on Rail Technology
The rail technology review provides assistance to a number of rail technology programs initiated by the Transportation Systems Center (TSC) for the Federal Railroad Administration (FRA). The results of a search and review in four specific areas in the field of rail technology are presented in the...Probability of Detection Evaluation Results for Railroad Tank Car Nondestructive Testing
The Federal Railroad Administration (FRA), Transportation Technology Center, Inc. (TTCI), and rail industry participants have performed probability of detection (POD) assessments to evaluate nondestructive testing (NDT) technologies, which are prescribed by Title 49 of the Code of Federal...Technical Feasibility Study of Railroad Electrification with High Voltage (10-50 kV) Direct Current
High-voltage (10-50 kV), direct-current (HVDC) power distribution may prove to be an economically and technically attractive option for railroad electrification. There may be potential economic advantages in both wayside installation and operation, and in the propulsion equipment aboard the rolling...Measurement Plan for the Characterization of the Load Environment for Cross Ties and Fasteners
This report was prepared as part of the Improved Track Structures Research Program sponsored by the Office of Rail Safety Research of the Federal Railroad Administration. The report is a planning document for a track measurement program to obtain data on the service loads and reactions of cross...High-Speed Rail Turnout Literature Review
High-speed rail (HSR) turnout design criteria generally address unbalanced lateral acceleration or cant deficiency (CD), cant deficiency change rate (CDCR), and entry and exit jerk. Various countries have adopted different design values for their HSR systems based on their unique experiences and...Rail Integrity Alert System (RIAS) Feature Discrimination
This report describes GE Global Research’s research, in partnership with GE Transportation, into developing and deploying algorithms for a locomotive-based inductive sensing system that has a very high probability of detecting broken rails with very few false-positives. These algorithms are...Train-To-Train Rear End Impact Tests. Volume III. Appendix A: Impact Test Data. Appendix B: Report of Inventions
Nine train-to-train rear end impact tests were performed, and tests were documented. Volume III is an appendix to Volume II. It contains the original data of the impact test.Aerodynamic Forces on Freight Trains. Volume II. Full-Scale Aerodynamic Validation Tests of Trailer-on-a-Flat Car (Series II).
Aerodynamic forces were measured on full-scale Trailer-on-a-Flat Car (TOFC) configurations and a reliable data base was established for validation of wind tunnel test programs. The drag, side and lift forces were determined on two trailers mounted on an instrumented flat car, each by means of a...