Determining street segment headings

  • US 10,309,788 B2
  • Filed: 05/11/2015
  • Issued: 06/04/2019
  • Est. Priority Date: 05/11/2015
  • Status: Active Grant
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1. A method for updating map data associated with a street segment, the method comprising:

  • receiving a plurality of instances of vehicle telematics data indicative of a travel path of a vehicle on a street segment during one or more time periods, wherein each instance of the vehicle telematics data (a) comprises location data captured by a location-determining device onboard the vehicle and (b) is captured responsive to a triggering event, the plurality of instances of vehicle telematics data comprising (i) a first instance of telematics data wherein the triggering event is detection of a vehicle event based on data generated by one or more vehicle sensors of a plurality of vehicle sensors onboard the vehicle, and (ii) a second instance of telematics data wherein the triggering event is a determination that a threshold amount of time has elapsed since the preceding instance of the vehicle telematics data was captured;

    segmenting the vehicle telematics data to determine a portion of the vehicle telematics data corresponding to the travel path of the vehicle on the street segment, the segmenting of the vehicle telematics data comprising;

    accessing a street segment definition associated with the street segment,identifying a plurality of data points along the street segment, wherein identifying the plurality of data points comprises identifying a segment starting point where the vehicle entered the street segment, where the segment starting point is a data point where an immediately preceding data point was not captured when the vehicle was located on the street segment,assessing the location data of the vehicle telematics data based on the street segment definition,identifying one or more instances of vehicle telematics data corresponding to the street segment definition, anddefining a set of instances of vehicle telematics data consisting of the identified one or more instances of vehicle telematics data corresponding to the street segment definition,based at least in part on the set of instances of vehicle telematics data, determining a street segment direction for the street segment, the determined street segment direction indicating whether the street segment is a one-way street segment or a bidirectional street segment;

    identifying map data associated with the street segment, wherein the map data comprises street segment direction data indicator indicating whether the street segment is a one-way street segment or a bidirectional street segment; and

    updating the map data to reflect the determined street segment direction for the street segment direction.

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