J. Riley Edwards
YOU?
Author Swipe
View article: Quantifying the effect of fixed structures on rail stress management: A numerical investigation
Quantifying the effect of fixed structures on rail stress management: A numerical investigation Open
From 2012 to 2021, FRA accident data indicate that there have been 132 derailments caused by track buckles. Out of the 132 total derailments, 59 (or 45 %) occurred within 152 m (500 ft.) of a fixed structure. Therefore, this paper presents…
View article: Design and laboratory evaluation of spring washers as railway baseplate hold-down method to mitigate spike failures
Design and laboratory evaluation of spring washers as railway baseplate hold-down method to mitigate spike failures Open
The rising popularity of elastic railroad fasteners for use in timber sleeper tracks, delineated through their wide adoption across the North American freight network, is facing resistance since the derailment data attributes at least 13 d…
View article: Review of CSEDM Data and Introduction of Two Public CS1 Keystroke Datasets
Review of CSEDM Data and Introduction of Two Public CS1 Keystroke Datasets Open
Analysis of programming process data has become popular in computing education research and educational data mining in the last decade. This type of data is quantitative, often of high temporal resolution, and it can be collected non-intru…
View article: 2019 CS1 Keystroke Data
2019 CS1 Keystroke Data Open
Keystroke data collected from CS1 student participants during 2019 at Utah State University. See readme.txt for detailed information. This dataset has undergone deidentification, though it is possible, being a complex, temporal, and epheme…
View article: 2021 CS1 Keystroke Data
2021 CS1 Keystroke Data Open
Keystroke data collected from CS1 student participants during fall 2021 semester at Utah State University. See readme.txt for detailed information. This dataset has undergone deidentification, though it is possible, being a complex, tempor…
View article: A Roadmap for Sustainable Smart Track—Wireless Continuous Monitoring of Railway Track Condition
A Roadmap for Sustainable Smart Track—Wireless Continuous Monitoring of Railway Track Condition Open
Ensuring safe train operation, minimizing service interruptions, and optimizing maintenance procedures are primary railway industry focus areas. To support these goals, a multi-disciplinary team of researchers at the University of Illinois…
View article: Track Modulus Assessment of Engineered Interspersed Concrete Sleepers in Ballasted Track
Track Modulus Assessment of Engineered Interspersed Concrete Sleepers in Ballasted Track Open
Ballasted railway track is typically constructed using sleepers that are manufactured from a common material type within a given length of track. Timber and concrete are the two most common sleeper materials used internationally. Evidence …
View article: Quantification of the Effect of Train Type on Concrete Sleeper Ballast Pressure Using a Support Condition Back-Calculator
Quantification of the Effect of Train Type on Concrete Sleeper Ballast Pressure Using a Support Condition Back-Calculator Open
Monitoring ballast support condition and improving current sub-structure and ballast maintenance strategies is critical to ensuring safe and efficient railroad operations. Researchers at the University of Illinois at Urbana-Champaign (Illi…
View article: Use of Field Flexural Demand Data for Reliability-Based Analysis and Design of Concrete Railroad Sleepers
Use of Field Flexural Demand Data for Reliability-Based Analysis and Design of Concrete Railroad Sleepers Open
Concrete sleepers are commonly used to constructed ballasted track infrastructure in demanding locations on heavy axle load (HAL) freight railroads with steep grades, sharp curves, and high annual gross tonnage. Center flexural cracking is…
View article: Quantification of prestressed concrete railway crosstie flexural response: Implications for mechanistic design
Quantification of prestressed concrete railway crosstie flexural response: Implications for mechanistic design Open
Concrete is the dominant crosstie material choice for demanding locations on heavy axle load (HAL) freight railroads with steep grades, sharp curves, and high annual gross tonnage. Concrete crossties are also used in rail transit applicati…