Optimization research on intersection structure for improving passing capacity by reducing passing quadrant

As a widely available technology in China, the way of multi-quadrant optimized control which dividing plane traffic by time can improve the order and security in urban intersections. However, this method delays traffic and reduces passing capacity in urban intersections. Based on the actual situation of the main urban streets which have at least 6 lanes and 80% of the vehicles are small ones in China, this paper presented a novel method though setting up auxiliary traffic lights and turning-around control zones, so that 4-quadrant passing can be changed into 2-quadrant passing. The new method can greatly reduce waiting time and energy consumption of vehicles and improve passing capacity in intersections.