城市道路互通立交优化设计研究

Study on Optimal Design of Urban Road Interchange

随着城市道路交通量的日益增加,车辆拥堵问题尤为明显。城市道路平面交叉口已经不能满足通行需求,采用立体交叉设计能够实现空间分离,增加车辆通行量,但互通式立体交叉交通组织及设计复杂。本文以孝感某城市道路为研究对象,根据该工程概况,对交通量增长进行预测,研究互通式立交特点及存在问题。提出了苜蓿叶+定向组合方案以及环形+定向组合方案,并对方案进行比选。

with the increasing traffic volume of urban roads,the problem of vehicle congestion is particularly obvious.Urban road grade crossings can no longer meet the traffic demand.The use of interchange design can realize spatial separation and increase vehicle traffic volume,but the traffic organization and design of interchange are complex.This paper takes an urban road in Xiaogan as the research object,forecasts the traffic growth according to the general situation of the project,and studies the characteristics and existing problems of interchange.Put forward alfalfa leaf+directional combination scheme and ring+directional combination scheme,and compare and select the schemes.