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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., 02/16/2019
E.g., 02/16/2019
Tuesday, February 5, 2019 - 15:45
Smart, connected communities enable those living, working, or traveling in these areas to realize improved quality of life by taking advantage of innovative technologies and collaborative institutional arrangements that facilitate extensive real-time data sharing, effective communications, and evidence-based decision making. These communities are "...
Tuesday, February 5, 2019 - 15:45
Foundations of existing highways and over-river bridges may have significant functional value. Hence, reuse of foundations of existing bridges during reconstruction or major rehabilitation can result in significant savings in costs and time. This report on bridge foundation reuse addresses critical issues encountered during decision-making on foundation reuse,...
Tuesday, February 5, 2019 - 15:45
In this study, the viability of using three test methods for asphalt mixtures and one test method for asphalt binders are investigated. These test methods are: Bending Beam Rheometer (BBR) for creep and strength of asphalt mixtures; low temperature Semi Circular Bend (SCB) test for fracture energy of asphalt mixtures; Dynamic Modulus (E*) test of asphalt...
Tuesday, February 5, 2019 - 15:45
Effective signage that is easily understood facilitates safe driving through a work zone. While the guidance for work zone signage in the Manual on Uniform Traffic Control Devices (MUTCD) is suitable for many conditions, there may be instances where alternative signage may be more effective at enhancing safety. This project evaluated the use of alternative...
Tuesday, January 22, 2019 - 19:15
This report examines the impacts of passing lanes on safety, journey time and user experience and provides guidance to assist in the development of passing lane installation projects. The research found that passing lanes result in safety benefits, including perceived safety by motorists, safer operational conditions, and historical crash reductions. Passing...
Tuesday, January 22, 2019 - 19:15
Work to evaluate the effectiveness of innovative geotechnical repair techniques for slopes has been commissioned by Highways England. The techniques evaluated are the planting of live willow poles, Fibre Reinforced soil (FRS) and Electrokinetic Geosynthetics (EKG). These techniques were used in place of conventional slope stabilisation approaches in order to...
Tuesday, January 22, 2019 - 19:15
A multitude of goals have been stated for complete streets including non-motorized travel safety, reduced costs and environmental burdens, and creation of more livable communities, or in other words, the creation of livable, sustainable and economically vibrant communities. A number of performance measures have been proposed to address these goals....
Friday, January 11, 2019 - 19:15
This project seeks to understand the role and scope of a risk and quality management standard that could be  developed  to  assist  municipalities,  engineers  and  other  professional  practitioners  in  designing,  operating, maintaining and continuously improving stormwater management systems—...
Friday, January 11, 2019 - 19:00
This document summarizes Socioeconomic Impacts of Automated and Connected Vehicles, a symposium  held  June  26–27,  2018,  at  the  Hotel  NH  Brussels  Bloom  in  Brussels,  Belgium.  Hosted  by  the  European Commission and the Transportation Research Board  (TRB...
Friday, January 11, 2019 - 19:00
This report identifies and documents best practices and tools for better understanding and analyzing how land use, local economic development, and demographic factors drive freight movement, trip generation, and freight demand analysis. The report includes a literature review. The full document is available from FHWA at https://ops.fhwa.dot.gov/publications/...
Monday, January 7, 2019 - 19:45
The relationship between speed and safety continues to be a high-priority research topic as numerous states consider speed limit increases. This study leveraged data from the Second Strategic Highway Research Program (SHRP2) Naturalistic Driving Study (NDS) to examine various aspects of driver behavior, including speed limit selection and engagement with in-...
Monday, January 7, 2019 - 19:30
Despite large investments in traffic safety programs and technologies, motor vehicle accidents continue to impose high social costs. Crash casualty rates have ended their long-term decline and recently started to increase. New strategies are needed to achieve ambitious traffic safety targets such as Vision Zero. Recent research improves our understanding of...

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