Coordination for grids, not just corridors

In an urban grid, multiple, competing dominant traffic flows change throughout the day. Instead of coordinating signals only along an arterial corridor, surtrac dynamically coordinates traffic for the grid. surtrac takes a decentralized approach to allow the system to scale to large networks; the larger the network, the better the performance, as surtrac optimizes traffic flows with distributed control and coordinated action. surtrac also works with existing traffic equipment, saving time and money.

Optimizing for all modes of travel

In urban areas, many different modes of travel must share the right of way, and traffic signal control should give active attention to all modes of travel, not just passenger vehicles. surtrac is designed to optimize for all modes of travel, including pedestrians, cyclists, transit, and light vehicles. With improved sensors, like cameras for automatic pedestrian detection, surtrac can further improve service for specific modes of travel, while still reducing vehicle delay and lowering emissions.

Improving air quality by reducing emissions

Idling vehicles are a major contributor to air pollution. Making signal networks smarter with surtrac means less time spent waiting at intersections and lower emissions.

True real-time response to actual traffic

Instead of basing signal timings on traffic models that are minutes, days, or years old, surtrac optimizes signal timings second by second based on the current traffic on the road. This true real-time response to traffic allows surtrac to dynamically coordinate signals as traffic conditions change.