Surtrac Smart Traffic Signals

Using Artificial Intelligence to Reimagine Traffic Control

Miovision acquires Rapid Flow

Learn More

Surtrac - Real-time Adaptive Traffic Signal Control

  • Real-time Response to Actual Traffic
    Surtrac optimizes every second based on actual traffic flows

  • Decentralized & Inherently Scalable
    Surtrac is decentralized and scalable to networks of any size & shape

  • Optimized for Complex Grids, Not Just Corridors
    While Surtrac is capable of handling suburban corridors with a single dominant flow, it really shines when optimizing more complex grid networks with multiple competing flows that change throughout the day

  • Multi-modal Optimization
    With advanced sensing, Surtrac can integrate vehicle, pedestrian, bus, and bicycle traffic flows according to pre-specified priorities


Intelligent Traffic Signal Control

Surtrac is the most advanced traffic signal control system on the market today. Using patented technology developed in the Robotics Institute and Traffic21 Labs at Carnegie Mellon University, Surtrac combines cutting-edge research in artificial intelligence and traffic theory.

  • Travel Time
    Get people to their destinations 25% faster by eliminating stops, reducing wait time, and increasing travel speeds.
  • Delay
    Spend over 40% less time waiting at intersections.
  • Stops
    Make 30-40% fewer stops, decreasing wear on the road and tires and resulting in a cost savings for drivers and cities.
  • Emissions
    Produce 20% fewer harmful emissions and improve air quality by reducing stops and idling.


Routecast is a communication solution that allows multi-modal travelers to share their route information in real-time with Surtrac-enabled intersections using either a smartphone or connected vehicle technology. This route information allows Surtrac to unlock additional improvement in delay, emissions, and safety, on top of what Surtrac achieves using a passive detection system. Because Routecast works at very low adoption rates, and improves traffic control further as more people use it, even for those who aren’t participating, it is an equitable solution that benefits everyone. Routecast can work for any type of traveler, including pedestrians, cars, transit, bicyclists, and freight.

Learn More

Grab the Surtrac Product Sheet

Download Now

Latest from Rapid Flow

To Talk More About How Surtrac Can Improve Traffic in Your City
Contact Us

Subscribe to our mailing list

Modal Title

Any content could go in here.