Eight-hundred fifty-seven fatalities occurred in work zones in the United States in 2020. One work zone fatality occurs for every 4 billion vehicle miles of travel and for every $112 million of … [Read more...] about Modern Solutions to Safe and Efficient Work Zone Travel
Changeable Message Signs
New Virginia Law Allows Roadside Workers to Use Safety Message Signs
A new Virginia law, effective July 1, 2025, will allow authorized roadside workers to equip their vehicles with portable changeable message signs (CMS) displaying warnings like “Slow Down, Move Over.” … [Read more...] about New Virginia Law Allows Roadside Workers to Use Safety Message Signs
Lane-Change Response to Infrastructure Warning About Lane Closure in a Mixed Vehicle Fleet
Fostering the safe and efficient operation of road networks that include vehicles equipped with SAE International® Level 3™ (L3) automation and a cooperative automated driving system (C-ADS) requires … [Read more...] about Lane-Change Response to Infrastructure Warning About Lane Closure in a Mixed Vehicle Fleet
Variable Speed Limits Control for Smart Work Zone With Connected Vehicles
Freeway work zones with lane closures can cause traffic disruption and congestion with increased travel time, safety risks, and emissions. Variable speed limit (VSL) control has been widely studied to … [Read more...] about Variable Speed Limits Control for Smart Work Zone With Connected Vehicles
Enhancing Work Zone Safety: A Psychological and Behavioral Analysis of Anti-Tailgating Strategies Using Dynamic Message Signs and Fixed Warning Signs
Rear-end collisions in work zones, particularly those resulting from tailgating, pose a significant safety challenge that has not been adequately addressed in road safety research. Existing studies … [Read more...] about Enhancing Work Zone Safety: A Psychological and Behavioral Analysis of Anti-Tailgating Strategies Using Dynamic Message Signs and Fixed Warning Signs
Smart Work Zone Control and Performance Evaluation Based on Trajectory Data
Work zone control strategies, such as taper length and transverse rumble strips, have the potential to significantly impact traffic operations and safety. The performance of these strategies is often … [Read more...] about Smart Work Zone Control and Performance Evaluation Based on Trajectory Data