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Noise and Vibration

SkyTrain: Moving from Reactive to Preventive Rail Maintenance Toward a State of Good Repair

April 1, 2025 | Filed under: Bob Tuzik, Noise and Vibration, Rail Grinding, Rail Transit

by Bob Tuzik This article was originally published in Mass Transit (February 2022). SkyTrain, Vancouver’s iconic rail transit system, is a system in motion. Since the opening of the original Expo Line, named and timed to coincide with Expo 86, SkyTrain, which moves more than 115 million commuters per year pre-covid, …

How Sound Transit Controls Train-Borne Noise

March 31, 2025 | Filed under: Bob Tuzik, Noise and Vibration, Rail Grinding, Rail Transit

by Bob Tuzik This article was originally published in Mass Transit (June 2023). Challenges abound in the design, construction, maintenance, and operation of light rail lines in urban areas. Chief among them is controlling track- and vehicle-born noise, an important part of maintaining the support of an agency’s various stakeholders, …

Protected: Vehicle Design: Managing Wheel/Rail-Generated Noise and Vibration from the Ground Up (Part 2)

March 31, 2025 | Filed under: Briony Croft, Noise and Vibration, Vehicle Design, Vehicle/Track

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Protected: Vehicle Design: Managing Wheel/Rail-Generated Noise and Vibration from the Ground Up (Part 1)

March 31, 2025 | Filed under: Noise and Vibration, Vehicle Design, Vehicle/Track

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Implementing Rail Grinding and Wheel/Rail Interface Optimization Programs on Heavy Haul and Transit Systems: Lessons Learned

March 27, 2025 | Filed under: Noise and Vibration, Rail Grinding, Rail Maintenance

by Jeff Tuzik Rail grinding continues to evolve. Though still a standard part of the track maintenance and optimization toolkit, grinding programs look very different than they did when grinding programs first became commonplace in the 1980s. Preventive grinding, for example, has gone from niche to mainstream; it’s the target …

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 …

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 …

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 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 …

Using High-Performance Mass-Spring Systems to Reduce Noise and Vibration in Track

January 4, 2014 | Filed under: Noise and Vibration, Rail Transit, Vehicle/Track

By Hans-Georg Wagner • July, 2008 The transmission of noise and vibration associated with the close proximity of rail lines to houses and office buildings has become a significant issue in metropolitan areas. The operators of rail transit systems have begun turning to measures that mitigate noise and vibration and the …

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