城市多路交叉口交通组织优化设计

多路交叉口的交通组织是我困交叉交通改造设计的重难点。在多路交叉的情况下，从减少冲突点出发，交通组织设计中往往会采用环形交叉的形式。但是随着交通量的不断增长，当路口交通量比较大时，单独环形控制交叉口有可能出现环道“锁死”的危险。因此，以凤台县“大转盘”为例，讨论多路交叉口存不同控制方式下的效果，主要分析多路交叉在单独环形控制和环形加信号控制下的区别，最后分析总结多路交叉进行组织优化的经验。

Traffic organization optimization of urban multiple intersections

Currently, the traffic organization of multiple intersections has been the key difficult point in intersection reconstruction design. In the case of multiple intersections, from the starting point to reduce conflict, the traffic organization design often takes the form of an annular cross. But with the growing volume of traffic when crossing traffic than larger, the individually controlled intersections may occur annular ring road ＂lock＂ risk. Therefore, the effects of multi-way intersection under different control modes are discussed. The differences between independent ring control mode and the traffic signal control are analyzed. At last the experience of organizing intersections for multi-way intersection is concluded.