With analyzing the serious impact of left-turn vehicles on intersection,it is studied that the design method of traffic organization by using of vehicles leftdirection for carrying out left-turn vehicles on intersection. Meanwhile,the calculating models and referenced values of geometric parameters about distance from intersection to U-turn hatch in center isolation,turn radius,and path width are built. The analysis results indicate the technique of vehicles left-direction can avoid left-turn vehicles on intersection,reduce phase numbers of the traffic signals and decrea...
