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Federal Railroad Administration Status Update on Positive Train Control Implementation
The U.S. Department of Transportation (DOT) and the Federal Railroad Administration (FRA) are providing this status update on railroads’ Positive Train Control (PTC) implementation. This update informs the public of: (1) the background of the PTC mandate; (2) the actions FRA has taken and...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...
Standby Power for Railroad-Highway Grade Crossing Warning Systems
The requirements for standby power at railroad-highway grade crossings, as established by the states, the Association of American Railroads, and the individual railroads, are described. Standard means of satisfying these requirements, using 115 vac primary power and storage batteries for standby,...Proceedings of the Annual Railroad Engineering Conference (12th), Held at Pueblo, Colorado on October 23-24, 1975. Effect of Heavy Axle Loads on Track
The report presents proceedings of the 1975 Railroad Engineering Conference held at Pueblo, Colorado, October 23 and 24, 1975. Sessions included track developments, suspension developments and track/train interaction. Eighteen papers were presented by authors from the United States, Canada,...