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Heavy Haul

Moving to Performance-Based Automated Track Inspection: The Benefits and Hurdles Ahead

March 1, 2020 | Filed under: Heavy Haul, Measurement Systems

By David C. Lester The mileage of individual Class 1 railroad networks presents a challenge to inspectors and engineers to inspect frequently enough to keep the track in good shape and minimize the frequency of track-related derailments. Traditional inspections done by railbound geometry cars and flexible hi-rail trucks, with the …

Modelling Success and Predicting Failure at the Wheel/Rail Interface

January 18, 2017 | Filed under: Heavy Haul, Rail Grinding, Rail Maintenance, Track Geometry, Vehicle/Track, Wheel/Rail Interaction

WRI 2016, Heavy Haul Part 2 See Part 1 By Jeff Tuzik   The worst time to explore the complexities of contact mechanics, lubrication, metallurgies, carbody behavior or other aspects of wheel/rail interaction is at a derailment site. But it’s often the most instructive. As George Fowler, Senior Investigator at …

WRI 2015 — Heavy Haul Part 2: A Proactive Approach to Asset Management

December 5, 2015 | Filed under: Friction Management, Heavy Haul, Maintenance, Measurement Systems, Vehicle/Track, Wheel/Rail Interaction, Wheel/Rail Profile

By Jeff Tuzik (See Part 1) The benefits of taking a proactive approach to wheel/rail interface management are well known. Year after year at Wheel Rail Interaction conferences, speakers have extolled the benefits of moving away from costly reactive maintenance strategies. The “firefighting” method of moving from one critical exception to …

WRI 2015 — Heavy Haul Part 1: Interface Management From Micro to Macro

September 1, 2015 | Filed under: Big Data, Friction Management, Gary Wolf, Heavy Haul, Rail Cant, Rail Grinding, Wheel/Rail Interaction

 By Jeff Tuzik (Continue to Part 2) Proper management of the wheel/rail interface is a daunting process. It involves elements of design and planning, automated and manned inspection, corrective and preventive maintenance and data management, to name only a few. Managing the systemic health of a railroad means understanding processes that range from the …

Automated Inspection and the Power of Data: A Panel Discussion from WRI 2014

January 27, 2015 | Filed under: Gary Wolf, Heavy Haul, Measurement Systems

by Jeff Tuzik It wasn’t so long ago that measurement technology referred to calipers, gauges, or other tools. And it wasn’t so long ago that the data railroads collected on their properties was measured in pages instead of gigabytes. Now, the data flows constantly. Automated measurement technologies, both vehicle- and …

Data to Decisions: Tools and Technology to Manage Wheel/Rail Interaction

September 15, 2014 | Filed under: Gary Wolf, Heavy Haul, Measurement Systems

WRI 2014 Heavy Haul: Part 1 by Jeff Tuzik A lot has changed since the early days of wheel/rail interface management. New technologies present new opportunities and challenges, while legacy systems are continually honed and adapted to new practices. Automated inspection technologies and data management are only the latest in …

Taking the Long View: 20 Years of Wheel/Rail Interaction (Part 2 of 2)

April 22, 2014 | Filed under: Friction Management, Gary Wolf, Heavy Haul, Measurement Systems, Rail Maintenance, Track Geometry, Vehicle/Track, Wheel/Rail Interaction

Part 2. Friction Management, Vehicle Suspension and Measurement Systems By Bob Tuzik, April 2014 Part 1 of this article explored advances in metallurgy, wheel/rail profile design and maintenance practices. Part 2 continues the theme, examining the technologies and techniques that have shaped our understanding of wheel/rail interaction. While the practice of …

What Kind of Rail Materials Will Survive in Heavy-Haul Service? (Part 1 of 2)

January 29, 2014 | Filed under: Heavy Haul

By James R. Hornaday, Jr. In many ways, rail is the most important component in a railroad system. The economic value of installed rail is usually the most costly asset listed in any railroad’s financial accounts. The financial stability of a railroad is often determined by how well that installed …

What Kind of Rail Materials Will Survive in Heavy-Haul Service? (Part 2 of 2)

January 4, 2014 | Filed under: Heavy Haul

By James R. Hornaday, Jr. See Part 1 of this article. Contrary to many railroaders’ and rail mills’ opinions, there are no innocuous inclusions in rail. Any simple oxide particle, any complex oxide particle, any sulfide particle, or any complex oxide-sulfide particle in a rail will initiate a crack in …

Preventing Track Buckles

January 3, 2014 | Filed under: Gary Wolf, Heavy Haul, Rail Maintenance

By Gary Wolf • March 10, 2005 With the approach of spring, a trackman’s thoughts turn to the potential for sun kinks. Some call them thermal misalignments, some call them track buckles, some call them sun kinks. But no matter what you call them, their effects can be characterized in …

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