Patent ID: 9518837
Filing Date: 2016-12-13
CPC Classification: G01C,G08G

Claim Text:
1. A method comprising: receiving traffic data for a plurality of vehicles for a region of interest comprising one or more routes, wherein the traffic data for each vehicle of the plurality of vehicles includes position data derived from a global positioning system and traffic speed data; calculating real-time traffic flow data from the traffic data for one or more routes in the region; identifying historical traffic flow data; calculating, by a processor, a surprise factor for the one or more routes in the region of interest based on a ratio of the historical traffic flow data and the real-time traffic flow data; performing, by the processor, a comparison of the surprise factor to at least one threshold; generating, by the processor, a surprise traffic message based on the comparison; and transmitting, by the processor, the surprise traffic message to one or more navigation devices.