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Private Highway-Rail Grade Crossing Safety Research and Inquiry, Volume II - Appendices

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Over-the-Road Testing of the Instrumented Tank Car - A Load Environment Study

Fractures have been observed on stub sill tank cars for many years. Undetected and unattended, these fractures can develop into a variety of tank car failures. While tank car ruptures are relatively rare, the potential for a catastrophic HAZMAT release has made this a critical issue within the...

Next Generation Locomotive Cab Task 5 Summary Report: Control Stand Design

Locomotive Fuel Tank Structural Safety Testing: Passenger Locomotive Fuel Tank Jackknife Derailment Load Test

This report presents the results of a passenger locomotive fuel tank load test simulating jackknife derailment (JD) load. The test is based on FRA requirements for locomotive fuel tanks in the Title 49, Code of Federal Regulations (CFR), Part 238, Appendix D. This test covers Section (a) (2) of...

Locomotive Fuel Tank Structural Safety Testing Program: Passenger Fuel Tank Side Impact Load Test

This report represents a passenger fuel tank load test simulating a Side Impact Collision. The test is based on the Federal Railroad Administration’s (FRA) requirements for locomotive fuel tanks in the Title 49 Code of Federal Regulations (CFR), Part 238, Appendix D. This test covers Section (a) (3...

Slab Track Field Test and Demonstration Program for Shared Freight and High-Speed Passenger Service

Two types of slab tracks were installed on the High Tonnage Loop at the Facility for Accelerated Service Testing. Direct fixation slab track (DFST) and independent dual block track (IDBT) were installed into a 5-degree curve with 4-inch superelevation. The total slab track test section was 500...

800,000-Pound Quasi-Static End-Load Test of Crash Energy Management Equipped Car, Test 1

This report summarizes the quasi-static compressive end-load test at 800,000 pounds performed on Budd Pioneer Car 244. The car complies with 49 CFR 238.203 because it resisted the test loads with no significant permanent deformations of the body structure. All measured strains were below the yield...

Torsional Stiffness of Railroad Coupler Connections

Tank cars are required to use double shelf couplers to prevent the coupler of an adjacent car from puncturing the tank head in the case of overrides or accidents. However, the added torsional stiffness of such coupler connections might lead to tank cars „taking down‟ adjacent coupled cars in...

Procedures for Validation and Calibration of Human Fatigue Models: The Fatigue Audit InterDyne Tool

Guidelines for the Specification of Blue Safety Flags in Railroad Operations

Blue flag protection in the railroad industry provides safety to workers from the inadvertent movement of equipment on which they are working. Current Federal regulations provide minimum specifications for the devices that can be used as blue flags, allowing many devices to be used as long as...

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General