外环东互通立交方案比选

On scheme comparison of interchange overpasses of outer eastern rim

结合衡阳市船山东路的工程概况,从交叉口功能定位、立交用地、交叉口流量等角度,分析了影响外环东互通方案的主要因素,并分析比较了全苜蓿叶互通式立交与部分苜蓿叶+半定向互通式立交的优缺点,最终采取了全苜蓿叶立交方案。

Combining with the engineering survey of Chuanshandong Road in Hengyang City,the paper analyzes the main factors affecting the scheme for the interchange at the outer eastern rim from the functional allocation of the interchange,overpass site,and traffic of the interchange,and compares the advantages and disadvantages of the whole clover leaf interchange overpass and the partial clover leaf ＋ semi-directional interchange overpass,and adopts the whole clover leaf overpass scheme.