Patent ReferencesIn-vehicle traffic congestion information system Cell messaging process for an in-vehicle traffic congestion information system Traffic monitoring system with reduced communications requirements Traffic information system Method and system for determining dynamic traffic information Process for obtaining traffic data Method and apparatus for obtaining traffic situation data Method and system for providing navigation systems with updated geographic data Predictive model for automated vehicle recommendation system Method for determining traffic data and traffic information exchange InventorAssigneeApplicationNo. 10808072 filed on 03/24/2004US Classes:701/200, NAVIGATION701/117, Traffic analysis or control of surface vehicle701/118, With determination of traffic density701/119, With determination of traffic speed340/934, Density340/992, Position indication transmitted at periodic intervals (e.g., distance travelled)340/905, Highway information (e.g., weather, speed limits, etc.)342/357.13With storage device (i.e., map or database)ExaminersPrimary: Black, Thomas G.Assistant: Weiskopf, Marie A Attorney, Agent or FirmInternational ClassG01C 21/00AbstractA system and method of automatically communicating traffic information from a traffic probe vehicle to a traffic information and management system when the probe vehicle is operated within an active traffic information reporting region. Geographic information about a traffic reporting region, or plurality of regions, is stored in the probe vehicle as an array of geographic cells so as to reduce the data storage requirements. The geographic cells have associated with them certain cell parameters related to the cell, such as a recording priority, a recording interval and a reporting interval. The recording priority of a cell may be associated with certain roadway types located within that cell. As a probe vehicle travels within an active traffic information reporting region, its location is established within the traffic information reporting region and a corresponding geographic cell. | |