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Measurement Systems

Friction Management: Implementation and State of Good Repair

August 20, 2024 | Filed under: Friction Management, Maintenance, Measurement Systems, Wheel/Rail Interaction

By Jeff Tuzik This article originally appeared in the July/August issue of Mass Transit. Friction management is a well-established technology in the rail transit industry. Its significance is such that it is considered one of the five pillars of wheel/rail interface management Davey Mitchell, Commercial Manager of Friction Modifier at …

Mitigating Transverse Defects and Reducing Non-testable Areas: Grinding Strategies at CSX

August 6, 2024 | Filed under: Measurement Systems, Rail Grinding, Rail Maintenance, WRI Conference

By Jeff Tuzik Transverse defects are among the most costly and dangerous rail defects that freight railroads contend with. Across all Class 1 railroads, transverse defects are responsible for roughly 31 percent of broken rails system-wide; so mitigating the growth of transverse defects and detecting their presence via internal flaw …

New Approaches to Dynamic Wheel Force Measurement – Part 2

April 9, 2024 | Filed under: Heavy Haul, Measurement Systems, Wheel/Rail Interaction, WRI Conference

by Jeff Tuzik Part 1 of this article focused on past and present research into wheel condition and behavior monitoring via wayside-based continuous measurement systems. Using an overlapping combination of strain gauges and load cells, such systems can measure a wide range of dynamic wheel forces, and parameters like wheel …

New Approaches to Dynamic Wheel Force Measurement – Part 1

March 29, 2024 | Filed under: Measurement Systems, Vehicle/Track, Wheel/Rail Interaction, WRI Conference

by Jeff Tuzik The mechanics of wheel/rail interaction are in many ways at the core of railroading and the defining characteristic of how a train gets from here to there. Because rail typically represents a railroad’s largest financial asset, track-related issues are often front and center, even when it comes …

Smart Rocks, Smart Tamper: Investigating the Mechanics of Ballast Tamping

December 20, 2023 | Filed under: Ballast, Measurement Systems, Tamping

by Jeff Tuzik There are many forces that work to deteriorate track geometry over time. These forces don’t begin and end at the wheel/rail interface, they are transmitted to the vehicles and their components, and into the track structure and its components. On ballasted track, ballast absorbs these forces; and …

Using Derailment Findings to Identify Derailment Risks

November 15, 2022 | Filed under: Gary Wolf, Heavy Haul, Measurement Systems

Presenters at the 2022 Wheel/Rail Interaction conference looked at heat and track configuration issues as they relate to derailment potential in heavy-grade, high-tonnage territory. They also looked at the role of Operating parameters in derailment potential, and at the findings from 20 years of investigations into derailments. By Bob Tuzik …

Examining Autonomous Track Geometry Testing and Instrumented Revenue Vehicle Technology

September 7, 2022 | Filed under: Friction Management, Measurement Systems, Noise and Vibration, Rail Transit, Wheel/Rail Interaction

A pair of speakers from different continents discuss the benefits of autonomous track geometry collection and the advantages of monitoring revenue-service vehicles’ response to track conditions in this first installment of topics covered at this year’s annual Wheel/Rail Interaction Conference in Vancouver, B.C., Canada. By Bob Tuzik Brad Kerchof wasted …

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 …

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Related Articles

  • WRI 2016 – Transit: Integration, Correlation, Remediation
    In relation to
    Big Data
  • Engineering the Wheel/Rail Interface for Rail Transit
    In relation to
    Rail Transit
  • Meeting the Industry’s Technology Goals
    In relation to
    Friction Management
  • WRI 2014 Transit: A Systems Approach to Wheel/Rail Interaction
    In relation to
    Friction Management
  • WRI 2015: Transit — Maintenance and the State of Good Repair
    In relation to
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