A method for controlling city traffic 1 including the additional step of controlling {HEAD ~ the traffic flow} on {TAIL ~ a multiplicity} of roads forming a grid, said vehicular traffic travelling in said travel zones with nonstop speed passing every nonstop intersection through said vacate zones of a cross traffic with safety provided by said transition zones 
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A method for controlling city traffic 1 including the additional step of controlling { HEAD ~ the traffic flow } on { TAIL ~ a multiplicity } of roads forming a grid , said vehicular traffic travelling in said travel zones with nonstop speed passing every nonstop intersection through said vacate zones of a cross traffic with safety provided by said transition zones
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