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
Traffic
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
Delay or Travel Time Information? The Impact of Advanced Traveler Information Systems on Drivers’ Behavior Before Freeway Work Zones
Peak travel times contribute to congestion formation at freeway work zones. Advanced Traveler Information Systems (ATIS) can inform drivers in real-time about the delays and travel times en-route and … [Read more...] about Delay or Travel Time Information? The Impact of Advanced Traveler Information Systems on Drivers’ Behavior Before Freeway Work Zones
Quantitatively Evaluate Work Zone Driver Behavior Using 2D Imaging, 3D LiDAR, and Artificial Intelligence in Support of Congestion Mitigation Model Calibration and 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, 3D LiDAR, and Artificial Intelligence in Support of Congestion Mitigation Model Calibration and Validation
Verification and Efficacy of Automated Queue Detection Systems on Interstate Intelligent Work Zones
Intelligent work zones have been widely adopted in the United States because they have been proven to improve traffic safety and operations. One specific intelligent work zone system, known as … [Read more...] about Verification and Efficacy of Automated Queue Detection Systems on Interstate Intelligent Work Zones