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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., 03/26/2019
E.g., 03/26/2019
Wednesday, September 27, 2017 - 17:45
This guideline document is prepared to guide pavement maintenance personnel in the selection, installation, and evaluation of materials for hot-poured crack sealant treatments for flexible pavements. The information provided in this guideline is based on the field performance of 17 conventional sealants installed at five different sites in North America as part...
Wednesday, September 27, 2017 - 17:30
This primer from the US Federal Highway Administration (FHWA) discusses the rationale for and key elements of successful transportation systems management and operations (TSMO) program planning. It is designed as a practical resource to help State departments of transportation, metropolitan planning organizations, and local or regional operations organizations...
Wednesday, September 27, 2017 - 16:00
This user guide provides simple, cost‐effective methods for stabilizing locally maintained slopes along roadways in Minnesota. Eight slope stabilization techniques are presented that local government engineers can undertake using locally available materials and equipment. These methods are the result of a research effort that analyzed recent slope failures in...
Wednesday, September 27, 2017 - 15:45
Snow and ice management is the single largest expenditure in the maintenance budget for the Ohio Department of Transportation (ODOT) with an annual cost including labor, equipment, and materials reaching approximately $86 million (ODOT, 2013). One method to increase the efficiency of operations is the implementation of a Global Positioning System (GPS) and...
Wednesday, September 27, 2017 - 15:45
This manual from the US Federal Transit Administration (FTA) provides a compendium of best practices to help transportation professionals improve pedestrian and bicycle safety and access to transit, including information on evaluating, planning for, and implementing improvements to pedestrian and bicycle access to transit. In addition to covering key concepts...
Friday, September 15, 2017 - 20:30
The long-term performance of pothole patches largely depends on the selection of the patching method. A number of pothole patching methods are in practice in Minnesota and other nearby states. However, pavement maintenance crews often encounter problems in selecting the most appropriate patching method because proper guidelines are not available. The objective...
Friday, September 15, 2017 - 20:00
On-road public transport provides the ability for people to move between their homes, employment, recreation and services efficiently with less road space being required per passenger than private car use. In response to this, practitioners in many Australian and New Zealand cities are putting in place road space and signalling techniques and technologies which...
Tuesday, August 29, 2017 - 15:15
The objectives of this report are twofold: (1) to develop network-based measures for systematically characterizing the redundancy of transportation networks, and (2) to develop computational methods for evaluating the network-based redundancy measures. Travel alternative diversity and network spare capacity are developed as two quantitative measures to capture...
Monday, August 28, 2017 - 18:00
The Small Town and Rural Multimodal Networks report is a resource and idea book intended to help small towns and rural communities support safe, accessible, comfortable, and active travel for people of all ages and abilities. It provides a bridge between existing guidance on bicycle and pedestrian design and rural practice, encourage innovation in the...
Monday, August 28, 2017 - 17:30
Steel corrosion on bridges and ancillary structures due to environmental effects and deicing chemicals is a serious problem for Minnesota's infrastructure. The ability to detect, locate, and measure corrosion is an important aspect of structure inspection. Accurate thickness measurements and corrosion mapping are essential for determining load capacity of...
Thursday, August 24, 2017 - 15:30
This report identifies road design improvements to better cater for the safe passage of heavy vehicles through railway level crossings. Crashes involving heavy vehicles have been identified as a major safety issue in Australia and New Zealand with the volume of heavy vehicles expected to significantly increase over the next five to 10 years. An analysis...
Thursday, August 24, 2017 - 15:30
This report identifies improvements to guidance, education and practice to ensure the fundamental objectives of road design are achieved in new and existing road projects. The report provides a foundational road design definition and a series of road design principles that it recommends be incorporated into the Austroads Guide to Road Design. While the...

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