Technical Reports

Radiated Interference in Rapid Transit Systems- Volume II: Suggest Test Procedures

This report presents a suggested test procedure for measuring the radiated electromagnetic interference emanating from rail transit vehicles with electric propulsion. Testing rail transit vehicles for EMI poses unique problems not covered by existing EMI testing standards such as the MIL-STD's. The...

Quasi-Static Test on a State-of-the-Art Collision Post and End Post Assembly

This test evaluated the quasi-static method for demonstrating energy absorption and graceful deformation as outlined in the notice of proposed rulemaking for front-end strength of cab cars and multiple unit locomotives. The quasi-static tests were successful and were executed as planned. Minor...

Proof-of-Concept Demonstration: Controlling Rolling Contact Fatigue with Top of Rail Friction Control

A proof of concept demonstration was conducted on two curves to demonstrate the effectiveness of wayside based top of rail (TOR) friction control in reducing occurrence and growth rate of rolling contact fatigue (RCF) on low curvature railroad track. Benefits were primarily noticed on the low rail...

Progress in Rail Integrity Research

This report describes the work conducted over the past two decades on rail integrity research sponsored by the Federal Railroad Administration (FRA) and carried out by the Volpe National Transportation Systems Center. The research has involved both experimental and analytical studies on the subject...

Picton Ballast Movement Detector Test

Alarm performance tests of a ballast movement detector manufactured by Picton Technologies were performed by Transportation Technology Center, Inc. Tests were carried out at the Federal Railroad Administration's (FRA) Transportation Technology Center (TTC), Pueblo, Colorado, under the Facility for...

Passenger Trail-to-Frieght Train Impact Test: Test Procedures, Instrumentation and Data

A full-scale passenger train-to-freight train impact test was performed on January 31, 2002 at the Transportation Technology Center, Pueblo, Colorado. The actual speed of impact, as measured by the laser speed trap, was 29.9 mph resulting in a large amount of damage to the leading cab-car, which...

Passenger Train-to-Frieght Train Impact Test: Test Procedures, Instrumentation and Data

A full-scale passenger train-to-freight train impact test was performed on January 31, 2002 at the Transportation Technology Center, Pueblo, Colorado. The actual speed of impact, as measured by the laser speed trap, was 29.9 mph (i.e., within .3% of the desired speed of 30 mph) resulting in a large...

Passenger Ride Quality of a Span Bolster Car with Freight Trucks

A test was performed to measure the ride quality of an eight axle Span Bolster Rail Car with freight trucks. The Federal Railroad Administration (FRA) and the Association of American Railroads (AAR), felt it necessary to examine the use of freight trucks and Span Bolsters on passsenger cars...

Selected Topics in Railroad Tank Car Safety Research Volume II: Test Plan for Accelerated Life Testing of Thermally Shielded Tank Cars

A test plan for the accelerated life testing of thermally shielded tank cars is described. The test program would be conducted at the DOT Transportation Test Center in Pueblo, Colorado. Eighteen tank cars would be included in the program. Five cars would be equipped with a jacketed thermal...

Passenger Rail Car to Train Impact Test: Test Procedures, instrumentation, and Data

A full-scale passenger rail car to train impact test was performed on January 31, 2002, at the Transportation Technology Center, Pueblo, Colorado. The actual speed of impact, as measured by the laser speed trap, was 29.9 mph resulting in a large amount of damage to the leading cab-car, which...

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Technical Reports