Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=47886#.VEdKG1fHRK0 Author(s) Liqiang Fan Affiliation(s) Department of Information and Computing Science, Langfang Teachers University, Langfang, China . ABSTRACT The proper phase difference of traffic signals for adjacent intersections could decrease the time of operational delay. Some theorems show how to minimize the total average delay time for vehicle operating at adjacent intersections under given conditions. If the distance and signal cycles of adjacent intersections satisfy with specific conditions, the total average delay time would achieve zero. If the signal cycles of adjacent intersections and the phase difference of them ar...
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