INRIX has packed existing and new traffic information technology under this new premium, real-time and predictive traffic service that rolls out now in the United States, Canada, and six European countries with 12 additional markets expected in 2011.
In total the coverage available today is 450,000 miles (720,000 km) of highways, motorways, arterials, city streets and secondary roads. The traffic data is refreshing every minute.
INRIX is leveraging over 3 million GPS enabled vehicle probes as well as its own user’s community (on mobile apps), departments of transportation, and strategic partnerships with regional traffic providers.
First of all, XD Traffic is designed for cellular-connected navigation, using TPEG over IP to optimize data payloads and connectivity.
The service also uses Speedwaves, a technology built by INRIX to improve accuracy of traffic speeds on arterials and secondary roads where traffic lights, stop signs and other normal incidents have influence on the overall speed, independently of traffic congestion. Speedwaves was unveiled by INRIX in January 2010, it is now available across the board on the XD Traffic footprint.
XD Traffic also uses dynamic prediction models instead of historical data to provide a prediction of traffic speeds minutes or hours into the future. Accidents, construction, road closures, sporting events, concerts are baked into these algorithms.
New in XD Traffic is “incident fusion”, a software engine that integrates data from commercial incident providers, departments of transport and the driver community.
Also new in XD Traffic is F.A.S.T., for “Fully Automated Speed Testing”, a method that uses GPS probe data as test probes to analyze planned versus actual outcomes of traffic to improve route guidance and travel time predictions.