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Maintenance

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 …

Quantifying The Value of Maintenance for Asset Management and Capital Planning

March 30, 2023 | Filed under: Big Data, Heavy Haul, Maintenance

By Jeff Tuzik On freight railroads, rail is generally the largest single asset, capital expenditure, and one of the primary costs. From a maintenance perspective, rail is subject to wear and defect development, both of which can be actively managed in a number of ways. From an accounting perspective, rail …

Understanding the Role of Human Factors in Railway Inspection

November 14, 2022 | Filed under: Maintenance

Presenting experts at Wheel/Rail Interaction 2022 made it clear that there’s more to inspection than meets the eye. Education and training can help reduce errors and improve inspection efficiency. By Bob Tuzik “Human Factors” are frequently cited as cause codes in railway incidents and derailments. But while track and mechanical …

The Tools of Remediation: Case Studies on Mitigating Common Concerns at the Wheel/Rail Interface.

September 15, 2022 | Filed under: Friction Management, Maintenance, Noise and Vibration, Wheel/Rail Interaction

by Jeff Tuzik Transit systems around the world, despite their differences, all contend with the same issues to some degree. Issues like vehicle- and ground-borne vibrations, excess noise, and timetable delays often rise in priority as they generate increasing numbers of complaints. These issues are often symptoms that can be …

Big Data in Railroad Maintenance Planning: Evolving Science, Evolving Applications

February 27, 2017 | Filed under: Big Data, Maintenance

By Jeff Tuzik The concept of big data is something the railroad industry has been aware of for many years. The Federal Railroad Administration, for example, has been involved in research and development projects involving big data, neural networks and machine learning since as early as 2002. The prevalence and proliferation …

ICRI Workshop: A Discussion on RCF Remediation

October 1, 2016 | Filed under: Friction Management, Gary Wolf, Maintenance, Rail Grinding, Wheel/Rail Interaction

By Jeff Tuzik Rolling Contact Fatigue (RCF) is an issue every railroad, and many transit systems, around the world must contend with. Despite its ubiquity, RCF is not perfectly understood. There are many researchers, railroad operators and suppliers, experts in their field, working to understand and eliminate RCF and its attendant …

WRI EU 2015 Part 1: Systemic Challenges, Systemic Successes

April 12, 2016 | Filed under: Friction Management, Maintenance, Rail Grinding, Wheel/Rail Interaction, WRI Conference

By Jeff Tuzik For over 20 years, the Wheel/Rail Interaction conferences have brought together railway industry professionals, researchers and suppliers to share their expertise in the field of wheel/rail interaction. Until recently, the conferences have been held only in the United States and have drawn on North American experiences. In …

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 …

FRA Initiatives: Dr. Magdy El-Sibaie, Chief of FRA’s Track Research Division

January 3, 2014 | Filed under: Maintenance, Measurement Systems, Track Geometry, Vehicle/Track

By Bob Tuzik • May 26, 2005 The Federal Railroad Administration’s Office of Research and Development is not the best known R&D organization in the industry, but it is one of the most important. It’s work figures prominently in rulemaking and the regulatory process for the industry. That role is …

The Basics of Successful Grinding (Part 2 of 2)

October 18, 2013 | Filed under: Friction Management, Maintenance, Rail Grinding

By Norman Hooper • July 2010 See Part 1. Experience has shown that an efficient and cost-effective rail grinding program requires attention to basic track inspection and maintenance procedures. This includes attention to “hot spots,” such as joints, welds and road crossings. Figure 1 shows a rail joint at the end …

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