TAC Research Bulletin

The TAC Research Bulletin highlights recently-published reports and articles from around the world with relevance to road transportation in Canada. Full text links are included, so you get more than just the abstract.

E.g., 10/01/2022
E.g., 10/01/2022
Monday, May 4, 2020 - 13:45
Five different business models for mobile fare payment apps are examined, as the world of apps used by transit agencies in the United States and Canada continues to steadily grow. The TRB Transit Cooperative Research Program's TCRP Synthesis 148: Business Models for Mobile Fare Apps documents current practices and experiences of transit agencies that...
Monday, May 4, 2020 - 13:45
Cyclists and noncyclists have a wide range of perceptions of on-street bicycling facility designs — including sharrows, bike lanes, and buffered bike lanes — along a variety of roadway types, with and without curbside automobile parking. The TRB National Cooperative Highway Research Program's NCHRP Research Report 941: Bicyclist Facility...
Monday, May 4, 2020 - 13:45
Spectroscopy, which is a study of interactions between matter and electromagnetic radiation that has been around for decades, provides a way of analyzing materials. Its methods can tell us exactly what a material contains and can produce unequivocal results that make it possible for highway agency personnel to quickly determine whether a material is or is not...
Monday, April 27, 2020 - 13:45
Pedestrians’ acceptance of automated vehicles (AVs) depends on their trust in the AVs. We developed a model to promote pedestrians’ trust in AVs through implicit communications. To empirically verify this model, we conducted a human subject study with 30 participants in a virtual reality environment. The study manipulated two factors: AV driving...
Monday, April 27, 2020 - 13:45
This project established protocols to help evaluate the utilization of chemical stabilization methods to potentially improve the engineering behavior of problematic soils with and without soluble sulfates within the state of Montana. In addition, construction life cycle cost analyses were used to compare existing approaches used by MDT versus chemical...
Monday, April 27, 2020 - 13:30
The glossary was published for the first time in 1994 with the purpose of assisting member countries during the collection of data on transport using the Common Questionnaire developed by the UNECE, the International Transport Forum and Eurostat. It has since evolved to cover all areas of transport statistics. The present fifth edition is the result of...
Monday, April 27, 2020 - 13:30
The first edition of this report, in 2009, provided a comprehensive industry reference for the management of airport deicing runoff. The second edition has been wholly updated to reflect the latest industry practices. The TRB Airport Cooperative Research Program's ACRP Research Report 14: Deicing Planning Guidelines and Practices for Stormwater...
Monday, April 27, 2020 - 13:30
This report analyses the potential and the prerequisites for reaching the National Transport Plans targets of only selling zero-emission passenger cars, small light commercial vehicles (Vans) and city buses in 2025, large vans in 2030 and that 50% of new trucks and 75% of new long distance buses shall be zero-emission by 2030. The passenger car target for 2025...
Monday, April 20, 2020 - 13:45
Travel demand management (TDM) is being implemented in numerous different ways throughout the world, to address congestions issues and encourage modal shift. This research outlines some of the many TDM strategies being used internationally to provide insights of potential value for the New Zealand context. This information is presented through six city case...
Monday, April 20, 2020 - 13:45
With the increased use of electronic devices, distracted driving is assumed to be one of the main causes of crashes. The Illinois Department of Transportation (IDOT) has demonstrated interest in addressing distracted driving. However, the real impact of distracted driving on traffic crashes in Illinois is still unclear because of what appears to be a lack of...
Monday, April 20, 2020 - 13:45
This “state of the practice” report evaluates and summarizes current methods of grade control at culverts with photographic examples of each type of culvert grade control.  It is intended to be used as a reference to help engineers in the preliminary design stage select the most cost-effective and constructible type of culvert grade control...
Monday, April 20, 2020 - 13:45
This study demonstrated that Type 2205 stainless steel strand can be used as a replacement for conventional ASTM A416 steel strands where an increase in service life is required.  The benefit and practicality of using Type 2205 stainless steel strand in prestressed piles were determined from two tasks performed in this study. First, a corrosion...

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