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Traffic management system and method for materials handling using traffic balancing and traffic density

  • US 6,647,316 B2
  • Filed: 02/22/2001
  • Issued: 11/11/2003
  • Est. Priority Date: 02/22/2001
  • Status: Expired due to Term
First Claim
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1. A method for prioritizing vehicle movements in an automatic material handling system, the method comprising:

  • providing an ordered list of move requests, the ordered list including a source node and a destination node associated with each move request;

    calculating a traffic balance value for each source node and for each destination node for each move request;

    calculating a traffic density value for each source node and for each destination node for each move request;

    calculating a free car limit value for each source node and for each destination node for each move request;

    searching said ordered list of move requests for a first move request having an associated source node and destination node each having said traffic balance value equal to a first traffic balance value and said traffic density value equal to a first traffic density value; and

    assigning said first move request a first priority value.

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