Control of traffic signal phases

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8823548
APP PUB NO 20110304476A1
SERIAL NO

12815790

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Controlling a traffic signal phase at one or more intersections. A control system at an intersection is configured to operate in one of a first mode or a second mode. While operating the controller in the first mode, in response to a transit priority signal received by the control system from a vehicle assigned transit priority, a green phase of the traffic signal is extended in favor of the vehicle assigned transit priority. While operating the control system in the second mode, in response to a transit priority signal received by the control system from the vehicle assigned transit priority, a current non-green phase of the traffic signal is preempted to a green phase in favor of the vehicle assigned transit priority.

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Patent Owner(s)

  • GLOBAL TRAFFIC TECHNOLOGIES, LLC

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Eichhorst, Kevin Owatonna, US 3 71
Johnson, David Randal Oakdale, US 6 298

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