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Measurement Systems

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 …

WRI 2016 – Transit: Integration, Correlation, Remediation

August 1, 2016 | Filed under: Big Data, Measurement Systems, Rail Transit, Wheel/Rail Interaction

By Jeff Tuzik   It’s easier now than ever to collect data on wheel/rail interaction. The number of measurement tools, the number of parameters that can be measured, and the accuracy of those measurements have changed the way wheel and rail systems are designed, monitored and maintained. While all of …

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 …

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

January 27, 2015 | Filed under: 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: 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 …

WRI 2014 Transit: A Systems Approach to Wheel/Rail Interaction

June 29, 2014 | Filed under: Friction Management, Measurement Systems, Noise and Vibration, Rail Grinding, Rail Transit, Vehicle/Track, Wheel/Rail Interaction

by Jeff Tuzik   The 20th annual Wheel/Rail Interaction Conference drew a record number of attendees and speakers from around the world. They came to contribute to and draw from the growing body of knowledge on wheel/rail interaction. Since the conference began 20 years ago, the industry has come a …

Measuring With Eddy Current: Gauge Corner Cracking and the Magic Wear Rate

May 25, 2014 | Filed under: Measurement Systems, Rail Maintenance, Wheel/Rail Interaction

By Ryan McWilliams and Eric Eberius Gauge corner cracking (GCC) of the rail from rolling contact fatigue (RCF) is a dangerous and costly form of rail damage. Unfortunately, it’s also notoriously difficult to measure. And as GCC becomes more prevalent on rail systems around the world, accurate measurement is an …

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

April 22, 2014 | Filed under: Friction Management, 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 …

Meeting the Industry’s Technology Goals

January 4, 2014 | Filed under: Friction Management, Measurement Systems, Wheel/Rail Interaction

by Bob Tuzik, January, 2008 The wheel/rail interface must be managed in order to increase the life of rail and rolling stock components and to reduce in-service failures. This was one of the primary messages delivered at the Association of American Railroads/Transportation Technology Center, Inc.’s 14th Annual Research Review. The research …

Rail Cant Measurement of Concrete Crossties (Part 2 of 2)

January 4, 2014 | Filed under: Measurement Systems, Rail Cant, Track Geometry

By Arthur Clouse Part 1 of this article examined the mechanisms that cause rail seat abrasion on concrete ties. Part 2 looks at existing standards for concrete ties and the systems that can be used to measure their performance. The Federal Track Safety Standards prescribe minimum track geometry and track structure requirements for specific track …

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