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TRAFFIC LIGHT PREEMPTION MANAGEMENT SYSTEM

  • US 20120161981A1
  • Filed: 03/09/2012
  • Published: 06/28/2012
  • Est. Priority Date: 11/05/2010
  • Status: Active Grant
First Claim
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1. A method of managing traffic lights, comprising:

  • receiving a route to be taken by a vehicle equipped to emit a first signal having a predefined characteristic;

    identifying an intersection on the route, the intersection including a sampling device configured to sample the first signal emitted by the vehicle;

    identifying a first traffic light controlling, at the intersection, traffic going in a direction to be followed by the vehicle upon arriving at the intersection, according to the route;

    identifying a second traffic light controlling, at the intersection, traffic going in another direction;

    receiving a first signal sample of the first signal received by the sampling device;

    determining, from an analysis of the first signal sample, whether the vehicle is approaching;

    upon the vehicle approaching,instructing the second traffic light to change its state to block traffic andinstructing the first traffic light to change its state to authorize traffic to facilitate passage of the vehicle at the intersection.

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