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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., 02/25/2020
E.g., 02/25/2020
Friday, July 12, 2019 - 19:30
The objective of this research project was to develop methodologies for the evaluation of different types of seal-coated, gravel, and dirt roads by using a best-practice-oriented pavement-management system in Illinois. A statewide survey comprised of 13 questions collected 133 responses from county engineers and highway commissioners. Many counties and...
Friday, July 12, 2019 - 19:30
Connected and autonomous vehicle (CAV) technology is evolving at a rapid pace. Transportation agencies must work to develop policies and strategies that will be able to address the organizational, societal, legal and infrastructure impacts of the new technologies. This guide looks at current resources that address these issues, including legislation and federal...
Friday, July 12, 2019 - 19:15
This study compared the fabrication requirements, corrosion resistance, mechanical properties, construction components, and cost of using traditional bridge steels and corrosion-resistant steels. Comparisons were made based on existing literature, discussions with and knowledge gained from industry experts, experimental testing, and field visits. Types of...
Tuesday, June 18, 2019 - 19:00
FHWA's HEPH participated in NCHRP's Domestic Scan of design, operation, and policy decisions SDOTs face when considering accommodating additional modes and services within existing rights-of-way. The scan team visited seven geographically-dispersed projects and utilized a variety of multimodal transportation strategies benefitting bicycle, pedestrian,...
Tuesday, June 18, 2019 - 19:00
Traffic control devices (TCDs) play a critical role in delivering regulatory, warning, informational, and guidance information to drivers.  Transportation agencies devote considerable resources to support TCD installation and maintenance.  However, as connected vehicles develop and vehicle automation becomes a reality, the potential exists to replace...
Tuesday, June 18, 2019 - 18:45
This toolbox was developed to provide a summary of information that local agencies should be aware of to prepare for connected and autonomous vehicles (CAVs). The main goal of this toolbox is to assist local agencies in preparing for CAVs in the short term - 5 to 10 years. Since local agencies are not generally expected to have the resources to become test beds...
Tuesday, June 18, 2019 - 18:45
The National Academies–TRB Forum on Preparing for Automated Vehicles and Shared Mobility was officially launched in early 2018 to facilitate evidence-based research needed to deploy these technologies in a manner and timeframe that informs policy to meet these long-term goals. The Forum has held five meetings since then, promoting discussion among its...
Tuesday, June 18, 2019 - 18:45
This study explores where automated decision-making systems impact transport activity, and how. More and more transport activity is influenced by algorithms. Automated decision-making is taking a hold in areas from health care and housing to media and mobility. In transport, algorithms are a core feature for services from public transport scheduling to routing...
Tuesday, June 18, 2019 - 18:45
En dépit de données canadiennes abondantes sur les associations entre aménagement urbain et comportements liés à la santé, nous savons peu de chose sur les associations entre aménagement urbain et problèmes de santé. Cet examen de la portée est destiné à offrir une synthèse des données tirées d’études quantitatives ayant examiné la relation entre l’...
Tuesday, June 18, 2019 - 18:45
Despite the accumulating Canadian evidence regarding the relations between urban form and health behaviours, less is known about the associations between urban form and health conditions. Our study aim was to undertake a scoping review to synthesize evidence from quantitative studies that have investigated the relationship between built environment and chronic...
Tuesday, June 18, 2019 - 18:30
State highway agencies (SHAs) continually face important financial decisions when planning a new or reconstructed highway. For example, what is the initial investment for the highway? How much is needed periodically to maintain the highway in good pavement condition? What materials should be used to build the pavement? The answers to these questions may require...
Tuesday, June 18, 2019 - 18:30
This document is the project report for the Connected Vehicle Infrastructure—Urban Bus Operational Safety Platform Project also known as the Enhanced Transit Safety Retrofit Package (E-TRP) project. The report describes the project’s background and purpose, summarizes its activities and results, includes results from an independent evaluation, and...

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