Development of MASH TL-3 Transitions for Cast-In-Place Concrete Barriers , released by the Texas A&M Transportation Institute

An adaptive strategy for connected eco-driving towards a signalized intersection is described in Developing an Adaptive Strategy for Connected Eco-Driving Under Uncertain Traffic and Signal Conditions , a report from the National Center for Sustainable Transportation at the University of California at Davis. Traffic conditions and signal timings are usually dynamic and uncertain due to mixed vehicle types, various driving behaviors, and limited sensing range. The report is available for no fee after logg...

A ramp merging system for connected and automated vehicles (CAVs) is discussed in Development of Eco-Friendly Ramp Control for Connected and Automated Vehicles , a report from the National Center for Sustainable Transportation at the University of California at Davis. Sometimes ramp controls for CAVs may result in speed fluctuations, potentially increasing the traffic delays and excessive energy consumption.

Various U.S. transit industry uses of automation technologies are identified in Transit Automation Technologies: A Review of Transit Agency Perspective , a report from the Upper Great Plains Transportation Institute at North Dakota State University. Examples of these technologies include lane-keep assist systems, collision avoidance systems, guidance systems for precise docking in Bus Rapid Transit, and driverless shuttles.

Automated segmentation and morphological analyses of stockpile aggregate images based on deep-learning techniques are developed in Size and Shape Determination of Riprap and Large-Sized Aggregates Using Field Imaging , a report from the Illinois Center for Transportation at the University of Illinois in Urbana-Champaign. Riprap rock and large-sized aggregates are extensively used in transportation, geotechnical, and hydraulic engineering applications.

The correlation between work zone crashes and fatalities/injuries is examined in Work Zone Safety Performance on Illinois State Routes , a report from the Illinois Center for Transportation at the University of Illinois in Urbana-Champaign. The goal of this report is to identify work zone data collection and management improvements in Illinois.

A pavement present serviceability index (PSI) on Wyoming roads is assessed in Developing an Optimization Model for Managing County Paved Roads , a report from the Upper Great Plains Institute at North Dakota State University. This report also develops exclusive PSI pavement prediction models to be more representative for county roads.

Automated vehicle (AV) lateral wandering patterns are measured in Optimizing the Lateral Wandering of Automated Vehicles to Improve Roadway Safety and Pavement Life , a report from the Virginia Tech Transportation Institute. Most AVs are programmed to follow a set path and maintain a lateral position in the center of the lane, which will cause significant pavement rutting over time.

The perceived level of comfort of current and potential bicyclists regarding different bicycle infrastructure is examined in Contextual Guidance at Intersections for Protected Bicycle Lanes , a report from Portland State University. Improved bicycle infrastructure has become increasingly common in the United States as cities seek to attract new riders, including the demographics of people who do not feel comfortable riding with motor vehicle traffic. The report is available for no fee after signing into ...

Structures for bridge columns that do not meet the Texas Department of Transportation’s design impact load criteria are developed in Analysis of 54-Inch Tall Single-Slope Concrete Barrier on a Structurally Independent Foundation , a report from the Texas A&M Transportation Institute. This report identifies the most effective structure to use for these bridge columns.