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Traffic monitoring system

  • US 6,965,325 B2
  • Filed: 05/19/2003
  • Issued: 11/15/2005
  • Est. Priority Date: 05/19/2003
  • Status: Expired due to Term
First Claim
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1. A method comprising:

  • determining a primary route from a starting location to a destination location;

    determining an average speed of vehicles along portions of the primary route from signals received from wireless transmitters transmitting from the vehicles, wherein determining an average speed of vehicles along portions of the primary route comprises determining a speed for at least one of the vehicles based on signals indicative of the presence of the vehicle within multiple reception areas;

    identifying one or more delayed portions of the primary route at which the average speed is less than a respective predetermined speed; and

    displaying the primary route including indicia of the one or more identified delayed portions.

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