exchange by surrender and regrant [land]

It makes further exploration to value assignment of curvature radius R of shunt spot and clothoid parameter A in current criterion,and it provides effective and feasible method to judge the safety at the exit of interchanges.

应用运行速度计算方法对互通立交分流点处车辆的行驶速度进行分析,并对现行规范中分流点曲率半径R及回旋曲线参数A的取值进行了进一步探讨,为判断立交出口的安全性提供了有效可行的方法。