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.

The breadth of new mobility services and e-commerce delivery in cities is assessed in Emerging Technologies and Cities: Assessing the Impacts of New Mobility on Cities , a report from the University of Oregon. New technologies including autonomous vehicles, e-commerce, and the sharing economy have profound effects on how people live, move, and spend time in cities, as well as on urban development.

An overview of vehicle pricing programs is described in Lessons Learned for Designing Programs to Charge for Road Use, Congestion, and Emissions , a report from the National Center for Sustainable Transportation at the University of California at Davis. This report investigates design choices for programs that address major externalities related to vehicle use: road damage, emissions, and congestion.

A high-efficiency Wireless Power Transfer (WPT) system for electric vehicles (EVs) is investigated in Design of a Feedback-Controlled Wireless Converter for Electric Vehicle Wireless Charging Applications , a report from the Mineta Transportation Institute at San Jose State University. WPTs may be able to mitigate the challenges of EVs, including short driving ranges, long charging times, and high battery costs.

Real-time flood forecasting along Interstate 10 in Texas is modeled in Streamflow Measurement at TxDOT Bridges , a report from the Center for Transportation Research at the University of Texas at Austin. Several streamflow gages have been installed on bridges near Interstate 10, and this report combines streamflow data from these gages with forecasts from the National Water Model.

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.

Current and potential users of electrically-powered, shared, and automated vehicles (e-SAVs) are determined in User Perceptions of Safety and Security: A Framework for a Transition to Electric-Shared-Automated Vehicles , a report from the National Center for Sustainable Transportation at the University of California at Davis. The role of user perceptions of safety and security are identified in order to evaluate who will initially use systems of e-SAVs for personal mobility, and how safety and security w...

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 ...