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Reporting traffic conditions on road segments containing a bottleneck

  • US 9,424,748 B2
  • Filed: 09/09/2014
  • Issued: 08/23/2016
  • Est. Priority Date: 09/09/2014
  • Status: Active Grant
First Claim
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1. A method comprising:

  • determining, by the computer processor, a segment of a roadway including a bottleneck, wherein the bottleneck comprises at least one subsection of the segment of the roadway wherein a low value free-flow speed of the subsection is less than a high value free-flow speed of an adjacent subsection of the roadway during a same period of time;

    calculating, by a computer processor, an amount of traffic congestion of the entire segment of the roadway including both the bottleneck and the adjacent subsection, based on the low value free-flow speed when an observed speed is received corresponding to a location in the bottleneck and based on the high value free-flow speed when the observed speed is received corresponding to a location of the adjacent subsection; and

    communicating, by the computer processor, information indicative of the amount of traffic congestion on the segment for display to a client.

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