A city road intersection traffic system in which the vehicles turning left, the vehicles turning around and the vehicles running straight do not interfere with each other provides the biggest amount of foot passengers and vehicles passing through the intersection. The character of the system is that the vehicles in the direction with red light turning around and turning left when the traffic light in the center of the intersection is red. The system comprises a waiting roadway (A) for the vehicles making left turn running straight and the vehicles turning around, a roadway (B) for the vehicles making left turn passing straight through the intersection, a waiting roadway (C) for the vehicles making left turn, a transverse roadway (D) for the vehicles making left turn, and a second crosswalk (E2).
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