Technical Reports

Effects Of Coupler Height Mismatch On The Structural Integrity Of Railroad Tank Car Stub Sills

This project evaluated the safety implications of coupler height mismatches on the integrity of railroad tank car stub sills, through a series of static and impact tests. The test car was a loaded tank car instrumented with strain gages at critical locations. Static tests consisted of squeeze...

Rail Industry Job Analysis: Freight Conductor

This document describes the results from a job analysis that was conducted for the position of Freight Conductor. Key aspects of the position were identified, including main tasks and knowledge, skills, abilities, and other characteristics (KSAOs) needed to carry out the requirements of the job...

A Preliminary Examination of Railroad Dispatcher Workload, Stress, and Fatigue

This report presents the methods, findings and recommendations from a field study that examined the sources and levels of railroad dispatcher workload, stress, and fatigue. The study was initiated in response to concerns raised by two Federal Railroad Administration safety audits of dispatching...

Understanding How Train Dispatchers Manage and Control Trains: Results of a Cognitive Analysis

This report documents the results of a Cognitive Task Analysis that examined how experienced railroad dispatchers manage and schedule trains in today’s environment. The objective was to understand the cognitive demands placed on railroad dispatchers and the strategies that experienced...

EMF Monitoring on Amtrak’s Northeast Corridor: Post-Electrification Measurements and Analysis

This survey of electromagnetic fields (EMF) and radiation (EMR) due to the electrification infrastructure and operations of Amtrak Acela trains on the Northeast Corridor from New Haven, CT, to Boston, MA, was performed by Electric Research & Management (ERM) with Amtrak cooperation. The Federal...

Cognitive and Collaborative Demands of Freight Conductor Activities: Results and Implications of a Cognitive Task Analysis

This report presents the results of a cognitive task analysis (CTA) that examined the cognitive and collaborative demands placed on conductors, as well as the knowledge and skills that experienced conductors have developed that enable them to operate trains safely and efficiently. A secondary aim...

Work Schedule Manager Gap Analysis: Assessing the Future Training Needs of Work Schedule Managers Using a Strategic Job Analysis Approach

This report documents the results of a strategic job analysis that examined the job tasks and knowledge, skills, abilities, and other characteristics (KSAOs) needed to perform the job of a work schedule manager. The strategic job analysis compared information from subject matter experts (SMEs)...

An Examination of Railroad Yard Worker Safety

This report presents the methods, findings and recommendations from a multi-year research program that examined worker safety issues in railroad yards. The research program focused on human factor-related hazards and solutions to railroad yard worker safety. A broad range of issues were examined...

Estimation of Rail Wear Limits Based on Rail Strength Investigations

This report describes analyses performed to estimate limits on rail wear based on strength investigations. Two different failure modes are considered in this report: (1) permanent plastic bending, and (2) rail fracture. Rail bending stresses are calculated using the classical theory of beams on...

Risk/Benefit Assessment of Delayed Action Concept for Rail Inspection

A Monte Carlo simulation of certain aspects of rail inspection is presented. The simulation is used to investigate alternative practices in railroad rail inspection programs. Results are presented to compare the present practice of immediately repairing every detected defect with an alternative...

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Technical Reports