Technical Reports

Compilation of State Laws and Regulations Affecting Highway-Rail Grade Crossings 4th Edition

This Compilation of State Laws and Regulations on Matters Affecting Highway-Rail Crossings, Fourth Edition is intended to provide an up-to-date and more expansive look at the various state laws and regulations concerning every aspect of the regulation of highway-rail grade crossings, and driver...

Summary of the DOT Rail-Highway Resource Allocation Procedure - Revised

The Highway Safety Acts of 1973 and 1976, and the Surface Transportation Assistance Acts of 1978 and 19&2 provide funding authorizations to individual states to improve safety at public rail-highway crossings. The installation of active motorist warning devices, such as flashing lights or...

Locomotive-Based Top of Rail Friction Control Implementation Results and Issues: Phase 1: Atomized Spray/Friction Control Product

This report documents the first phase of a test to determine what effect top of rail (TOR) friction modification has on rail surface friction, lateral curving forces, and train handling. In Phase I, one type of TOR friction modifier and application system was evaluated, primarily on coal trains...

Comparative Safety of the Transport of High-Level Radioactive Materials on Dedicated, Key and Regular Trains - Technical Study

This study compares the risks in transporting spent nuclear fuel and high-level radioactive waste under three rail shipment alternatives: 1) regular train service, operating without restrictions with the exception of current hazardous materials regulations; 2) dedicated train service, operating...

Analysis of Accelerations Measured During Full-Scale Tank Car Impact Tests

Tank car impact responses were investigated using accelerometers mounted at various locations on a tank car. Several tests were run with both a full and an empty tank car, and varying the tank car impact speed. The data from the accelerometers went through a power spectral density (PSD) analysis...

Repair of Budd Pioneer Coach Car Crush Zones: Rail Passenger Equipment Impact Tests

The research team conducted a project to repair cars for use in a full-scale train-to-train collision test with crash energy management systems. The two cars had been damaged in previous dynamic tests. Several components required replacement, and some required design modification. This report...

Safety of High-Speed Ground Transportation Systems: The Aerodynamic Effects of Passing Trains to Surrounding Objects and People

Two safety issues are raised on the aerodynamic effects of a passing train on its surroundings. First, a high-speed train passing other trains on an adjacent track exerts aerodynamic pressure that can affect the structural integrity of window mount and glazing, and the stability of the railroad car...

Quantitative Nondestructive Testing of Railroad Tank Cars Using the Probability of Detection Evaluation Approach

Through sponsorship by the Federal Railroad Administration and in cooperation with tank car industry representatives, Transportation Technology Center, Inc. (TTCI) has developed probability of detection (POD) curves for nondestructive testing (NDT) methods allowed under 49 CFR Sections 179 and...

Emergency Escape Breathing Apparatus

Through sponsorship by the Federal Railroad Administration and in cooperation with the railroad industry and railroad labor organizations. Technical Products, Inc. (TPI) has developed information and recommendations relative to the use of emergency escape breathing apparatus (EEBA) by train crews...

Regulatory Evaluation and Regulatory Flexibility Assessment for Use of Locomotive Horns at Highway-Rail Grade Crossings

One of the more persistent problems facing railroads and motorists is highway-rail grade crossing collisions and their resulting casualties. Public and private initiatives to improve grade crossing safety have increased motorist awareness of approaching trains at crossings. Of the nearly 154,000...

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