General
Test Results Report : Dual Disc/Tread Braking and Reduced Pressure Braking Evaluation Programs
This report is the Test Results Report for the Dual Disc/Tread Brake Test. Data logs and records associated with this test are published separately in the Test Events Report Dual Disc/Tread Braking and Reduced Pressure Braking Evaluation Programs, Report No. FRA/ORD-8l/21. The Dual Disc/Tread...High Cant Deficiency Testing of the LRC Train, the AEM-7 Locomotive, and the Amcoach
Increasing the speed of passenger trains in existing curves has been proposed as an alternative to changing curve radii for the purpose of reducing trip times on the Northeast Corridor. This test evaluates safety at high cant deficiency by comparing direct wheel/rail force measurements to safety...Railroad Research and Development : Summary Results of 70 Ton Boxcar Testing
Tests were performed at the Transportation Test Center in Pueblo, Colorado on a 70 ton boxcar with Barber S-2C trucks in April and May of 1981. The objective of the tests was to provide definition of the dynamic properties of the freight car for application to the validation of a mathematical...Wheelclimb Derailment Processes and Derailment Criteria
The most widely accepted criterion for wheelclimb derailment defines an upper limit for safe operation on wheel/rail contact forces on the climbing wheel, with the limit varying with time duration of the forces. For dynamic wheelclimb processes with significant lateral velocities, lateral forces...Amtrak/Knorr Disc Brake Study : Volume 1 - Final Report
This report describes the Amtrak/Knorr Disc Brake Study which was developed: (1) To evaluate candidate replacement disc brakes for the Knorr discbrakes presently in use on Amfleet and Turboliner cars. (2) To explain the cause of the loosening of the attaching pins and the excessive wear...Amtrak/Knorr Disc Brake Study : Volume II - Appendices A through I
This volume contains the following appendices to Volume I, Final Report: Appendix A - Wheel Condition Effects Appendix B - Effects of Cyclic Loads on Pin Wear Appendix C - Over-the-Road Test Acceleration Data from the Boston Run Appendix D - Over-the-Road Test Acceleration Data from the...Brake System Design Optimization- Volume II: Supplemental Data
This report presents supplemental data which support Volume I, A Survey and Assessment, DOT-TSC-FRA-78-1,I,FRA/ORD-78/20,I, dated June 1978, 140 pages. A detailed description of the functional performance of each freight car air brake system component is provided. This is followed by a discussion...FRA Announces Final Rule to Prevent Unattended Trains from Rolling Away
WASHINGTON – The Federal Railroad Administration (FRA) today issued a final rule to prevent unattended trains that carry crude, ethanol, poisonous by inhalation (PIH), toxic by inhalation (TIH), and other highly flammable contents from rolling away. Railroad employees who are...