×

Route Calculation Method For A Vehicle Navigation System

  • US 20110160989A1
  • Filed: 03/09/2011
  • Published: 06/30/2011
  • Est. Priority Date: 04/06/2004
  • Status: Active Grant
First Claim
Patent Images

1. A method for managing traffic signals controlled by a signal control center to alleviate traffic flow problems associated with vehicles traveling on a road having a first lane and a second lane, each vehicle having a navigation device, the method comprising:

  • receiving location data and speed data from a navigation device in a target vehicle traveling in the first lane;

    receiving average vehicle speed of vehicles traveling in the first lane;

    receiving average vehicle speed of vehicles traveling in the second lane;

    determining the speed differential between the average vehicle speed of a vehicle traveling in the first lane and the average vehicle speed of a vehicle traveling in the second lane;

    determining the distance that the target vehicle is located from a traffic signal; and

    modifying a signal timing of the traffic signal, based at least in part on the determined distance and the determined speed differential.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×