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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., 09/23/2017
E.g., 09/23/2017
Tuesday, January 26, 2016 - 20:15
This electronic encyclopaedia, called "Road Tunnels Manual", comprises two principal parts. The part “Transverse aspects” contains 5 chapters that consider general aspects of road tunnels. The part “Operational and Safety Requirements” of the Manual contains 4 chapters and addresses particular elements of tunnels taking these...
Tuesday, January 26, 2016 - 20:00
Cette encyclopédie électronique, appelée "Manuel des Tunnels routiers", comprend deux parties principales. La partie « Aspects transversaux » comporte 5 chapitres qui traitent des aspects transversaux des tunnels routiers. La partie « Exigences opérationnelles et sécuritaires » du Manuel comprend 4 chapitres et traite des...
Tuesday, January 26, 2016 - 17:15
This comprehensive resource builds on the broad range of knowledge and experience provided by PIARC in the first edition. It includes new thinking on road safety and offers a clear argument on why adopting a Safe System approach is crucial for your country. The Safe System approach aims for a more forgiving road system that takes human fallibility and...
Tuesday, January 19, 2016 - 18:30
The Federal Highway Administration (FHWA) has prepared this guidebook to assist transportation agencies across the country in better managing their traffic signal systems through systematic alignment of maintenance, design, and operations activities and resources. It provides step-by-step instructions for documenting current activities, relating them to the...
Monday, January 18, 2016 - 20:30
Most bridges undergo several small and one or two major rehabilitations during their useful lives and decreasing the traffic impacts during these events could have significant societal benefits. Fortunately, many of the new construction concepts may be able to be adapted for use in rehabilitation scenarios. In still other cases, new means and methods may be...
Friday, January 15, 2016 - 17:30
This research provides a comprehensive review and assessment of current ‘alternative intersection’ methods which successfully eliminate the left-turn phase. With increasing traffic and limited resources, the Florida Department of Transportation moves forward with a vision of optimizing intersection control through the implementation of innovative...
Friday, January 15, 2016 - 17:15
The Bridge Construction Inspection Manual provides guidance in administration of the Standard Specification for Bridge Construction.  Bridge construction inspection is a significant activity, requiring consistent and thorough administration and documentation to achieve performance, durability, and an adequate level of safety. It is intended that this...
Friday, January 15, 2016 - 17:15
The purpose of this study was to examine the longevity of salt spread on the trunk road and motorway networks operated by Transport Scotland and the Highways Agency. This was achieved by carrying out trials in conditions of humidity and temperature representing road surface states close to freezing. The trials were not designed to measure the effectiveness of...
Friday, January 15, 2016 - 17:15
This paper presents the results of an experimental study on the fatigue performance of RC beams strengthened with different externally bonded CFRP systems. Seven specimens were fabricated; three had no CFRP; the remaining four had one of two CFRP systems. The objective of this study was to determine the effect the CFRP repair had on the growth rate of a fatigue...
Tuesday, January 12, 2016 - 20:45
Beginning in the fall of 2014, the United States Department of Transportation (U.S. DOT) field offices began organizing pedestrian and bicycle safety assessments, on-the-ground examinations of transportation facilities conducted by a multidisciplinary, multi-agency team. By June of 2015, field offices from the Federal Highway Administration (FHWA), Federal...

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