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Navigation system and method with intersection guidance

  • US 6,510,386 B2
  • Filed: 05/11/2001
  • Issued: 01/21/2003
  • Est. Priority Date: 06/05/2000
  • Status: Active Grant
First Claim
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1. A vehicular navigation system comprising:

  • means for determining a recommended travel route to a destination;

    means for checking whether an intersection on the travel route is a guidance intersection which requires a guidance; and

    means for providing a predetermined travel guidance about the guidance intersection when approaching the guidance intersection, wherein the checking means includes;

    first means for checking a relation of continuity of roads connected to the guidance intersection in consideration of the number of traffic lanes of each road; and

    second means for causing the providing means to provide a guidance of turn direction at the guidance intersection when the travel route is determined to be not on-the-way because of no continuity of roads at the guidance intersection.

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