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Method and apparatus for formulating a positioning extent for map matching

  • US 9,500,486 B2
  • Filed: 02/28/2013
  • Issued: 11/22/2016
  • Est. Priority Date: 02/28/2013
  • Status: Active Grant
First Claim
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1. A method comprising:

  • processing a plurality of position data points acquired by at least one positioning system to determine one or more variations in the plurality of position data points with respect to one or more established thoroughfare segments;

    determining one or more positioning extents associated with the one or more established thoroughfare segments for the at least one positioning system based, at least in part, on the one or more variations, wherein each of the one or more positioning extents comprises a vertical positioning extent above the one or more established thoroughfare segments;

    determining at least one centerline for respective segments of the one or more established thoroughfare segments; and

    adjusting a width of the thoroughfare segment based upon a posted speed limit for the thoroughfare segment.

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