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Matching trip data to transportation network data

  • US 8,645,402 B1
  • Filed: 12/22/2009
  • Issued: 02/04/2014
  • Est. Priority Date: 12/22/2009
  • Status: Active Grant
First Claim
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1. A method comprising:

  • receiving trip data that includes points representative of geographic locations traversed during a plurality of corresponding independently-traversed separate trips;

    storing the trip data in a storage device;

    retrieving the stored trip data from the storage device;

    determining a particular geographic space occupied by the trip data;

    receiving transportation network data that describes geographic locations and links between the geographic locations of the transportation network data;

    partitioning the stored trip data and transportation network data across a plurality of processing units executing on one or more processors, wherein the stored trip data is partitioned into subsets, wherein each subset of stored trip data is a respective one of the corresponding independently-traversed separate trips, and wherein the transportation network data is partitioned into subsets, and wherein each subset of transportation network data includes geographic space data containing a corresponding one of the independently-traversed separate trips from the stored trip data; and

    organizing the stored trip data according to a predetermined function;

    at each of the plurality of processing units executing on the one or more processors, locally matching a subset of the stored trip data to a corresponding subset of the transportation network data to identify a subset of paths of the transportation network data traversed by each subset of stored trip data.

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