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DOTX 220 Schedule October 2018

Addressing Electrode-Induced Rail Pitting From Pressure Electric Welding

Safety Advisory 2018-1

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Images

Displayed below are full resolution versions of figures contained in Safety Advisory 2018-1.

Figure 1 - Electrode-Induced Pits in a Rail

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Understanding the Splitting and Bursting Failure of Concrete Crossties

Under the sponsorship of the Federal Railroad Administration, finite element (FE) analyses were conducted at the Volpe National Transportation Systems Center (Volpe Center) between 2016 and 2017 to understand the contributing factors to the concrete tie splitting/bursting failure mode. This was...

DOTX 219 Route Outline FY2019

DOTX 220 Schedule October 2018

Low Solar Absorption Coating for Reducing Rail Temperature and Preventing Buckling

This report documents Rutgers University’s research in the development and demonstration of an inorganic coating for reducing peak rail temperature to inhibit rail buckling. The zero-volatile organic content (VOC) and 100 percent inorganic coating system is based on an alkali-aluminosilicate...

Field Demonstration of Geocell Track Substructure Support System Under High-Speed Passenger Railroad Operations

Regions of track, which experience high rates of track geometry degradation, tend to require frequent maintenance interventions that are typically surfacing or tamping. Harsco Rail and the University of Delaware conducted a survey regarding this costly process that involved both machine time and...

DOTX 221 Route Outline FY2018

DOTX 221 Schedule August 2018

Evaluation of the Degradation of Concrete Ties Using Machine Vision Technology on High-Speed Rail Corridors

ENSCO, Inc. used machine vision technology to assess concrete tie degradation in Amtrak’s high-speed Northeast Corridor (NEC) over a 13-month period. The study examined three aspects of concrete tie degradation: 1) the prevalence of nonconformance types found in the assessed ties, 2) the...

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