With the increasing speed of construction and the continuous improvement of its corresponding infrastructure, the expressway plays an increasingly important role in promoting the development of … [Read more...] about Variable Speed Limit Control of Traffic Flow in Expressway Construction Zone
Transportation Operations
Quantitatively Evaluate Work Zone Driver Behavior Using 2D Imaging, 3-D Lidar & Artificial Intelligence in Support of Congestion Mitigation Model Calibration & Validation
This project addressed the following: 1) a lack of a system to process raw traffic footage obtained from work zones to extract traffic and driver behavior information, especially systems that leverage … [Read more...] about Quantitatively Evaluate Work Zone Driver Behavior Using 2D Imaging, 3-D Lidar & Artificial Intelligence in Support of Congestion Mitigation Model Calibration & Validation
Sight Distances for Work Zones
This course promotes awareness of the different types of sight distances frequently used to safely set up and evaluate work zones. … [Read more...] about Sight Distances for Work Zones
Intelligent Work Zone Using Automatic Queue Detection Systems
This report documents the the evaluation of the effectiveness of the Advanced Queue Detection (AQD) systems installed on Interstate work zones in Nebraska. Specifically, (1) the system performance was … [Read more...] about Intelligent Work Zone Using Automatic Queue Detection Systems
Methodology for Monitoring Work Zones Traffic Operations Using Connected Vehicle Data
The National Work Zone Safety Information Clearinghouse estimated there were approximately 115,000 work zone crashes with 842 fatalities in 2019. There is broad consensus that it is important for … [Read more...] about Methodology for Monitoring Work Zones Traffic Operations Using Connected Vehicle Data
Saturation Flow Rate at the Work Zone–Straddled Intersections With Interweaving Movements: Lane-Based Modeling Study
This study explored how the presence of work zones could influence the saturation flow rate (SFR) prevailing at an intersection. Specifically, it researched construction-ridden intersections with … [Read more...] about Saturation Flow Rate at the Work Zone–Straddled Intersections With Interweaving Movements: Lane-Based Modeling Study