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Navigation system with congestion estimation mechanism and method of operation thereof

  • US 8,620,568 B2
  • Filed: 12/28/2011
  • Issued: 12/31/2013
  • Est. Priority Date: 12/28/2010
  • Status: Active Grant
First Claim
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1. A method of operation of a navigation system comprising:

  • receiving a real-time traffic flow of road links;

    determining congestion candidate links from the road links based on comparing a speed threshold and the real-time traffic flow of the road links;

    smoothing spatially the real-time traffic flow of the congestion candidate links with a control unit;

    calculating a flow confidence of the real-time traffic flow of the congestion candidate links;

    determining a congested segment by tracking the real-time traffic flow and the flow confidence of the congestion candidate links over a time period; and

    generating a congestion message for the congested segment for displaying on a device.

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