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1 May 1991

Technical Reports

Wheel/Truck Tolerance Experiment at FAST

Author
John Leary

Subject Facilities & Test Equipment

Keywords: Wheel Wear, Axle Misalignment, Wheel Profile, Instrumented Wheel Sets, Wheel/Rail Forces, Truck Design, Rolling Resistance, Rail Temperature, Steady State Curing Analysis, Facility for Accelerated Service Testing

Abstract: The test program described in this report covers the investigation of the performance of trucks in freight cars influenced by various mechanical factors. The primary issue was the...

Report Number
FRA/ORD - 91-16
Office
RRD

1 Apr 1991

Technical Reports

Rail vs. Truck Fuel Efficiency: The Relative Fuel Efficiency of Truck Competitive Rail Freight and Truck Operations Compared in a Range of Corridors

Author
Abacus Technology Corporation

Subject Evaluation

Keywords: Ton-Miles per Gallon, Lading Weight, Payload Weight, Average Speed, Horsepower per Trailing Ton, Train Performance Simulator, Vehicle Mission Simulation

Abstract: This report summarizes the findings of a study to evaluate the fuel efficiency of rail freight operations relative to competing truckload service. The objective of the study was...

Report Number
FRA-RRP-91-02
Office
RRD

1 Mar 1991

Technical Reports

Safety Aspects of New Trucks and Lightweight Cars, Car 2 : Interim Report

Author
Nicholas G. Wilson

Subject Evaluation

Keywords: Mini-Shaker Unit, Vehicle Dynamics, Suspension Characterization, Truck Characterization, Lightweight Cars, NUCARS, AAR Chapter XI tests

Abstract: The Federal Railroad Administration (FRA) has sponsored a program to continue the validation of new techniques for testing and analysis that could be applied to the evaluation of...

Office
RRD

1 Feb 1991

Technical Reports

Issues in Locomotive Crew Management and Scheduling

Author
Pollard

Subject Human Factors

Keywords: railroad, locomotive engineers, fatigue, suess, circadian rhythm, sleep loss, scheduling, crew-management.

Abstract: This study explores matters related to the scheduling and management of locomotive crews, particularly as they might contribute to fatigue and stress. It describes how crews are...

Report Number
DOT/FRA/RRP-91/01
Office
RRD

1 Feb 1991

Technical Reports

Dynamic Buckling Test Analyses of a High Degree CWR Track

Author
A. Kish, G. Samavedam

Subject Track

Keywords: Track Buckling, Dynamic Buckling, Lateral Stability, Continuous Welded Rails, High Degree Curve

Abstract: Thermal buckling of railroad tracks in the lateral plane is an important problem in the design and maintenance of continuous welded rail (CWR) tracks. The work reported here is...

Report Number
DOT/FRA/ORD-90/13
Office
RRD