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Method of creating a virtual traffic network

  • US 7,835,858 B2
  • Filed: 06/30/2003
  • Issued: 11/16/2010
  • Est. Priority Date: 11/22/2002
  • Status: Active Grant
First Claim
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1. A computer-implemented method of creating a virtual traffic network representing traffic conditions on a road system, the method comprising:

  • (a) inputting into a processor a base layer comprising map data representing a road system, the road system being defined by a plurality of links and nodes;

    (b) the processor creating a traffic layer by combining multiple links and nodes of the base layer into a single link with an upstream node and a downstream node;

    (c) inputting into the processor flow data related to traffic flow on the road system and information about traffic events on the road system; and

    (d) the processor integrating the base layer, the traffic layer, the flow data and the traffic event information to produce a virtual traffic network representing traffic conditions on the road system, wherein the virtual traffic network indicates both the flow data and the traffic event information.

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