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Cell messaging process for an in-vehicle traffic congestion information system

  • US 5,182,555 A
  • Filed: 07/26/1990
  • Issued: 01/26/1993
  • Est. Priority Date: 07/26/1990
  • Status: Expired due to Fees
First Claim
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1. In an in-vehicle traffic congestion information system, a method for cell messaging comprising the steps of:

  • inputting raw traffic congestion data from at least one source of traffic congestion data,processing said raw traffic congestion data to produce a at least one traffic congestion data message indicative of a level of traffic congestion for a predetermined section of roadway and direction of travel,transmitting said at least one traffic congestion data message if the level of traffic congestion for said predetermined section of roadway and direction of travel exceeds a predetermined congestion level,receiving said at least one traffic congestion data message in a vehicle,determining the location and heading of the vehicle, andreporting said at least one traffic congestion data message if said section of roadway and direction of travel are within a predetermined area defined by the location and heading of the vehicle.

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