分离式立交地面层交叉口一体化设计方法研究

分离式立交是解决城市拥堵的有效手段,但立交桥地面层的平面交叉口设计仍缺乏足够重视,现有的组织方式、控制方案无法有效应对立交桥下特有的交通环境.文中分析立交地面层交叉口特有的交通环境,提出一体化组织方法及信号控制模型,运用VISSIM仿真软件分析评价一体化组织方法的适用范围,为实践中可否采用一体化组织方法的决策提供参考....

Integrated Organization Method of Ground Intersection under the Separation Overpass

Separation overpass is an effective means of addressing urban congestion,but the design of grade intersections under the overpass still lacks enough attention,and the existing organization and control scheme can not effectively respond to the unique traffic environment under the overpass.The unique traffic environmentis analyzed in the paper,and the integration organization methods and signal control model are proposed.By using VISSIM simulation software,the applicable scope of the integrated organization method is analyzed and evaluated,which provides a reference for the decision whether the integrated organization method can be adopted in practice.Combined with Wuhan City Second Ring Line-Jiefang Avenue intersection for instance verification,it is proved that the integrated organization scheme has greater capacity,significantly lower delays,and the service level is effectively improved compared with the conventional intersection organization scheme.