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METHOD AND APPARATUS FOR VEHICLE TRAFFIC CONTROL

  • US 3,668,403 A
  • Filed: 05/05/1969
  • Issued: 06/06/1972
  • Est. Priority Date: 05/05/1969
  • Status: Expired due to Term
First Claim
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1. A method for effecting vehicle traffic control which comprises the steps of a. determining vehicle position information in x, y and h rapidly and accurately sequentially for each vehicle within a predetermined area with respect to a predetermined reference coordinate point, b. computing course and speed for all vehicles simultaneously on the basis of the position information determined by step (a), c. computing interrogation rate for all vehicles as a function of their position relative to predetermined points or their potential collision with other vehicles, d. determining course intersect positions and time for all vehicles with respect to each other related to the predetermined reference, e. determining the difference in arrival time of each of the vehicles at their respective intersect points, f. determining the minimum separation distance or closest point of approach of vehicles with respect to their positions and velocities, g. comparing the difference in all vehicle intersect times to a predetermined standard, and h. sending maneuvering instructions to all vehicles having intersect times within the predetermined standard so as to extend the intersect times outside the predetermined standard.

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