Madison, WI, Feb. 28, 2007 - Dynaflow™, real-time estimates of road speeds for major roadways, has been shown to provide accurate and reliable travel time projections for both sensored and non-sensored roadways.  TrafficCast International, Inc. the leader in real-time traffic data aggregation and analysis, made the announcement following rigorous third-party validations of its beta release for various markets.

Announced in January, Dynaflow employs patented technology to dynamically model traffic flow in real-time, integrating detailed historical data for virtually all Class I, II, and III roads with a range of real-time data inputs from public and private sources.  The resulting flow data enables “red-yellow-green” advisories as well as detailed link-by-link speed estimates for virtually all major roads in the US.  Such functionality, which has been historically limited to where roadside sensors are deployed, is critical to the emerging national market for interactive navigation services.

As an example, San Francisco was chosen as one of the markets for independent third-party validation and evaluation because of its diverse commuting base, natural congestion bottlenecks where traffic conditions can change dynamically and the availability of baseline flow data from the installed Caltrans sensors. 

Collaborating with researchers at leading institutions, including the University of California-Berkeley and the University of Wisconsin-Madison, TrafficCast International demonstrated that overall Dynaflow speed estimate accuracy is over 80%-85% at confidence level of 80%.  For Class I roadways such as the Bay Area interstates and Highway 101 between San Jose and San Francisco, accuracy is even higher, and highest of all on roads with installed sensors where historical data is especially deep.

“The scientific approach for Dynaflow verification and validation in these studies are sound and solid,” said Dr. Jeff Ban, a researcher of UC-Berkeley. “Dynaflow shows the capacity to provide travelers with reliable travel time and speed information on mobile devices.”

On a regular basis, TrafficCast International will continue to validate its Dynaflow models as Dynaflow is introduced into the market in a nationwide rollout by Q2, 2007. 

“We see Dynaflow as ‘mission critical’ to our core markets,” said Connie Li, President/CEO of TrafficCast International.  “Our expertise in traffic data analysis, traffic modeling and more than 10 years of historical traffic data archives uniquely position us to offer a seamless data feed of real-time and predictive road speeds across navigation map data links.”

About TrafficCast International, Inc. TrafficCast International is the leading provider of digital traffic data, with patented software and predictive models to produce route-specific real-time traffic information and travel time forecasts for traditional and emerging traffic information markets. Privately-held, TrafficCast International is a subsidiary of TrafficCast Inc, and is backed by angel and venture capital investors. The company is based in Madison, Wisconsin and has a branch office in Shanghai. For more information, see www.trafficcast.com.