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.

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 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.

The Virginia Department of Transportation has released a report that investigates the development of a digital traffic control device (TCD) data service that focuses on signs and pavement markings. As connected vehicles develop and vehicle automation becomes a reality, the potential exists to replace or augment TCDs with a digital connection.

The Virginia Department of Transportation has released a report that investigates the stability of stone matrix asphalt (SMA) mixtures grading specifications and the effects of aggregate morphology and asphalt binder properties on their stability. SMA is the typical gap-graded mixture used in Virginia, and is intended to maximize rutting resistance and durability with a stable stone-on-stone skeleton held together by a mixture of asphalt binder.

The Missouri Department of Transportation has released a report that investigates the feasibility of using five different types of fly ashes to synthesize zero-cement concrete for different structural and repair applications. Using 100% fly ash may reduce global carbon dioxide emissions, save energy, and decrease raw material consumption during the cement production process. Fly ash is a by-product of coal combustion during energy generation in power plants.