Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Traffic analysis or control of surface vehicle
Reexamination Certificate
2008-09-24
2011-11-01
Elchanti, Hussein A. (Department: 3663)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Traffic analysis or control of surface vehicle
C701S118000, C701S119000, C340S917000, C340S918000
Reexamination Certificate
active
08050854
ABSTRACT:
An adaptive control system controls a traffic signal at a critical intersection that has a most conflicting volume of traffic among volumes of traffic at intersections in a traffic network. The adaptive control system determines a plan identifying a guaranteed green light time and a minimum green duration and a period for the plan. The adaptive control system determines, based on the plan, a non-linear schedule with one or more states corresponding to one or more individual phases with each state having a state start time and a state duration. Queues for individual traffic movements at the critical intersection also may be used to determine the non-linear schedule. The adaptive control system controls the traffic signal according to the non-linear schedule. The adaptive control system transmits its plan to one or more other adaptive control systems for other intersections. The other adaptive control systems determine other plans based on the plan from the adaptive control system and an expected travel time between the critical intersection and the corresponding intersection.
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Bley James W.
Chandra Reggie J.
Parker Arthur S.
Penrod Stephen S.
Elchanti Hussein A.
Law Offices of Grady L. White, LLC
Rhythm Engineering, LLC
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