ITS for Work Zones

This project involves the development of an infrastructure-based collision warning system to mitigate the risk of crashes as vehicles approach and travel through work zones. Rear-end crashes have been an apparent problem in work zones. The basic idea of this project is to provide vehicles with sufficient warning of downstream slow-moving or stopped vehicles by using multiple low-cost speed detectors and small green/yellow/red LED warning signals along the work zones. The project uses a distributed detection and warning system to measure the speed differentials between vehicles. When large speed differentials are detected within the predefined headway ranges, the system issues yellow/red warning signals to upstream vehicles that have higher speeds.