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The Journal of Wheel/Rail Interaction
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Wheel/Rail Profile

Extending Wheel Life Through Rail Grinding

October 13, 2025 | Filed under: Rail Grinding, Wheel/Rail Profile, WRI Conference

by Jeff Tuzik Rail grinding is typically the go-to approach to addressing rail-related issues like corrugation, RCF, profile degradation, and a slew of others. It works. And on transit (and other closed-loop) systems, rail grinding can also be used to address wheel-related issues, as well. Greater Cleveland Rail Transit Authority’s …

Wheel/Rail Profile Optimization on Wiener Linien’s Vienna Underground line U6

December 6, 2024 | Filed under: Rail Transit, Wheel/Rail Interaction, Wheel/Rail Profile, WRI Conference

In 2022, Wiener Linien faced severe wheel wear issues on line U6 after a rail renewal project. The complex problem stemmed from poor wheel/rail dynamics, necessitating collaborative efforts for analysis and remediation. New wheel and rail profiles, designed to optimize contact conditions, are expected to significantly reduce wear and damage.

Rail Corrugation: A Problem Solved?

October 15, 2024 | Filed under: Rail Grinding, Rail Maintenance, Wheel/Rail Profile

Stuart Grassie discusses rail corrugation, a prevalent issue in rail systems, highlighting advancements in understanding its causes and mitigation strategies over 45 years. Key mechanisms include P2 resonance, trackform-specific resonance, pinned-pinned resonance, and rutting. Successful corrugation management was achieved on Kuala Lumpur’s Kajang Line, marking a significant milestone.

Rail Transit 2018: Quantifying Wheel/Rail Interaction and Managing Noise and Vibration

October 23, 2018 | Filed under: Noise and Vibration, Rail Transit, Wheel/Rail Interaction, Wheel/Rail Profile

By Bob Tuzik For three years running, New York City Transit and the Federal Transit Administration have kicked off the annual Wheel/Rail Interaction – Rail Transit conference with discussion of the NYCT/FTA research project to explore integrated wheel/rail analytics on MTA-NYCT’s No. 7 Flushing Line. It’s a fitting start to …

WRI 2017 – Transit: System Optimization and Better Asset Management

July 3, 2017 | Filed under: Rail Transit, Vehicle Design, Vehicle/Track, Wheel/Rail Interaction, Wheel/Rail Profile

By Jeff Tuzik Optimization, modernization and asset management are critical to the efficient running of a rail transit system. While each program is beneficial in its own right, the importance of asset management has taken on new significance with the recent Federal Transit Administration’s (FTA) rule making on the State …

WRI EU 2015, Part 2: Theory to Practice, Laboratory to Track

June 20, 2016 | Filed under: Rail Grinding, Track Geometry, Vehicle Design, Wheel/Rail Interaction, Wheel/Rail Profile

By Jeff Tuzik See Part 1 A thorough understanding of the forces contributing to wheel/rail interaction requires a grasp of both theoretical concepts and operational practices. Speakers at the 2015 Wheel Rail Interaction Conference, European Union (WRI EU) addressed both, presenting findings from the lab and operating environment of vehicles …

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 …

Taking the Long View: 20 Years of Wheel/Rail Interaction (Part 1 of 2)

January 8, 2014 | Filed under: Gary Wolf, Rail Grinding, Track Geometry, Wheel/Rail Interaction, Wheel/Rail Profile

Part 1. Metallurgy, Wheel/Rail Profile Design and Maintenance. by Bob Tuzik, January 2014 Ask a group of railroaders, researchers or suppliers what the essential aspects of understanding wheel/rail interaction have been over the past 20 years, and you’ll get a host of answers. But among them, major categories consistently emerge: …

Understanding the Effects of Track Gauge, Wheel/Rail Geometry and Friction on Stresses at the Wheel/Rail Interface

January 4, 2014 | Filed under: Friction Management, Track Geometry, Wheel/Rail Interaction, Wheel/Rail Profile

By Jude Igwemezie, Ph.D., P.Eng. Over the years, rail grinding has become more the norm than the exception as the rail industry has recognized that damaged materials on the rail and wheel contact surfaces must be addressed before they become a bigger problem. The art of rail grinding has also progressed …

Tools and Techniques for Optimizing the Wheel/Rail Interface

January 4, 2014 | Filed under: Measurement Systems, Rail Grinding, Vehicle/Track, Wheel/Rail Interaction, Wheel/Rail Profile

By Gary P. Wolf • July, 2007 Much has been written and said about the need to optimize the interface between the wheel and rail, but with the growth of heavy axle load traffic, the mandate for optimum performance is greater than ever. Balancing the wheel/rail equation and optimizing interaction can …

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