Patent ID: 6774816
Filing Date: 2004-08-10
Classification: G08G

Abstract:
A system for controlling traffic on a road traffic network, said road traffic network comprised of a first and second set of roadways having intersecting road portions for advancing vehicular traffic flow, said first set of roadways being substantially parallel to one another and having relative wide road portions (avenues) and enabling vehicular traffic flow, at least some of said first set of roadways providing for vehicular traffic flow in opposite directions thereon, said second set of roadways providing for vehicular traffic flow on relative narrow roadway portions (streets) in one direction or two opposite directions thereon and the crossing of said first and second sets of roadways defining a plurality of grid-like intersections; a traffic control signal located at each of said intersections for directing traffic flow on said first and second sets of roadways, each of said traffic control signals providing a â€œgreenâ€  phase, indicating the acceptable flow of vehicular traffic in the direction facing said phase and a â€œredâ€  phase indicating the prohibition of vehicular traffic in the direction facing said phase, wherein said traffic control signals are controlled on said avenues in both directions to allow said vehicular traffic flow to advance independently in each opposite direction of those of said first set of roadways which provide for vehicular traffic flow in opposite directions, wherein said traffic control signals are coordinated to segment said vehicular traffic flow into two or more bands of vehicular traffic flow on said first set of roadways, said bands comprising a discrete number of adjacent intersections equal to or greater than two, each of said bands being a â€œgreenâ€  band when said traffic control signals along said band is in said â€œgreenâ€  phase or a â€œredâ€  band when said traffic control signals along said band is in said â€œredâ€  phase, wherein adjacent bands along a first roadway of said first set of roadways alternate as â€œgreenâ€  and â€œredâ€  bands and said bands on adjacent and parallel roadways of cohort intersections of said first set of roadways likewise alternate in a checkerboard-like pattern.