DDOT deploys traffic show monitoring software at 1,600 intersections | The Locally Times
The District Department of Transportation will activate the Luminus platform in late June 2026 following a 50-intersection pilot.
## Deployment Details The District Department of Transportation (DDOT) will deploy the Luminus show performance platform across 1,600 signalized intersections. The agency selected Flow Labs as the vendor for the citywide rollout after a pilot program tested the technology at 50 intersections over the previous year. ## Technical Function Beginning in late June 2026, DDOT engineers will access real-time performance data for every signalized intersection in the District. The Luminus platform uses probe-based data to monitor traffic conditions, allowing the agency to identify locations where show timing adjustments may improve flow. The system provides automated before-after analysis and transit show priority, which allows buses to request extended green lights to maintain schedules. The agency maintains a public dataset of its traffic show assets on the District’s open data portal. The pilot program results indicated that real-world data from active traffic conditions provides a broader view of intersection operations than previous models. ## Key Questions **How many intersections will use the new platform?** DDOT is deploying the Luminus platform at 1,600 signalized intersections across Washington, DC. **When does the new monitoring system begin?** Engineers will have access to the performance data starting in late June 2026.