The general durability of hybrid composite beams (HCBs) is determined in a report from the Virginia Department of Transportation. The ability to inspect and ensure the durability of HCBs is important for transportation construction projects.

Design criteria of bridge beams prestressed with carbon fiber reinforced polymer (CFRP) strands are established in a report from the Michigan Department of Transportation. This report evaluates CFRP design parameters such as maximum tensile strength, guaranteed strength, environmental reduction factors, relaxation, creep rupture strength, short and long-term prestress loss, and performance at elevated temperatures.

New electronic project design and delivery methods are explored in a report from the Minnesota Department of Transportation. This report discusses the complete transformation of transportation projects in Minnesota to smart, paperless, 3D electronic delivery and identifies the potential challenges of this transformation.

Laser ablation coating removal is discussed in Innovative Coating Removal Techniques for Coated Bridge Steel , a report from the Virginia Department of Transportation (VDOT). This report determines whether laser ablation is an acceptable alternative for removing existing coatings.

Using geosynthetics to reinforce pavements is examined in Accelerated Load Testing of Geosynthetic Base Reinforced/Stabilized Unpaved and Pavement Test Sections , a report from the Louisiana Department of Transportation and Development. Specifically, this report evaluates the benefits of using geosynthetics to reinforce or stabilize base aggregate layer and subgrade in pavements under repeated loading test conditions.

How scanning technology is used to document existing facilities is explored in 360-Degree Point Cloud Technology for Building Management , a research synthesis from the Minnesota Department of Transportation. This report reviewed the existing state of technologies and identified possible solutions to implement into transportation project workflows.

The performance of asphalt emulsion tack coat is evaluated in Investigation of Tack Coat Materials Tracking Performance , a report from the Wisconsin Department of Transportation. The goal of this report is to provide recommendations to modify the exiting tack coat specification in Wisconsin.

The Louisiana Department of Transportation and Development has released a report that determines the impact of temperature segregation on the quality of asphalt mixtures. Temperature segregation is a non-uniform temperature distribution across the mat of uncompacted asphalt mixtures during paving operations. Some areas of the asphalt mat are cooler than the required compaction temperature, resulting in lower field densities.

The Virginia Department of Transportation has released a report that identifies whether concrete beams with carbon fiber reinforced polymer (CFRP) may be produced, delivered, and erected successfully. CFRP is sensitive to temperature, has limited elongation, and is brittle. The goal of this report is to gain insight into managing these characteristics and to determine if eliminating the use of vibrators during concrete placement may alleviate some production concerns.

The Virginia Department of Transportation (VDOT) has released a report that evaluates a method for identifying and ranking traffic bottlenecks. Bottleneck analysis tools currently available to VDOT typically analyze links along a roadway and do not consider the conditions on the side streets at intersections. This report proposes a new bottleneck analysis and ranking method for arterial intersections.