The District Department of Transportation (DDOT) recently deployed the Luminus signal performance platform at more than 1,600 traffic signals across Washington, D.C.
The technology will enhance DDOT’s ability to optimize signal operations at locations where signal timing adjustments may improve traffic flow and reliability. The technology also enables the department to monitor signal performance and collect operational data.
“DDOT has maintained a successful model for multimodal signal timing optimization for many years,” DDOT Director Sharon Kershbaum said. “The addition of probe-based signal performance measures to our toolbox will help us enhance signal retiming and operations by working with richer datasets and more varied performance measures. That is a meaningful advancement in how we serve the people who live in, work in, and visit Washington.”
A year-long pilot program evaluated the technology at more than 50 intersections. The program demonstrated the value of using active traffic conditions to provide a broader view of intersection operations and support informed decision-making.
DDOT engineers will have access to performance measures at every signalized intersection starting at the end of this month.
DDOT plans to continue to invest in data-driven tools that help engineers better understand the transportation network’s performance and identify opportunities to improve traffic signal timing.