Patent ID: 9601013
Date: 2017-03-21
CPC Classifications: G08G

Claim:
1. A distributed traffic signal control method for a directed network comprising a plurality of junctions, each of the plurality of junctions having a plurality of links connected thereto, the links comprising one or more upstream links and one or more downstream links, the method comprising: activating one of a plurality of phases of each of the plurality of junctions for a predetermined time period which maximizes the directed network throughput based on current differential traffic backlogs between said one or more upstream links and said one or more downstream links connected to each of the plurality of junctions, each phase providing a unique combination of traffic signals at each of the plurality of junctions for guiding traffic from said one or more upstream links to said one or more downstream links, wherein said activating one of a plurality of phases is based on said current differential traffic backlogs and a flow rate of traffic through each of the plurality of junctions; and determining, for each phase, a parameter based on a sum of the multiplication of the current differential traffic backlog with the flow rate of traffic for each unique combination of one upstream link and one downstream link of the plurality of links connected to each of the plurality of junctions.