Commuters in Metro Detroit are experiencing smoother drives, thanks to a groundbreaking traffic signal system developed by engineers at the University of Michigan. This innovative technology, now operational in Oakland County, utilizes vehicle GPS data to optimize traffic flow and reduce unnecessary stops.

The system has been implemented at 13 intersections: four along 8 Mile Road in Farmington Hills and nine along 12 Mile Road in Royal Oak. Early results are promising, with Farmington Hills witnessing a 30% reduction in delays and a 40% decrease in stops, while Royal Oak reported a 20% reduction in both metrics. ([news.engin.umich.edu](https://news.engin.umich.edu/2025/11/faster-commutes-in-oakland-county-rollout-underway-for-u-m-designed-traffic-flow-system/?utm_source=openai))

This technology requires data from only about 5% of vehicles on the road to recalibrate traffic signals every few weeks, offering a cost-effective alternative to traditional methods. The project, supported by a $1.4 million grant from the U.S. Department of Transportation, aims to expand to 40 intersections within six months. ([news.engin.umich.edu](https://news.engin.umich.edu/2025/11/faster-commutes-in-oakland-county-rollout-underway-for-u-m-designed-traffic-flow-system/?utm_source=openai))

By harnessing real-time data, this system not only enhances daily commutes but also contributes to safer and more efficient roadways across the region.