公路几何线形设计中,对行车速度较低的公路,采用超高缓和长度代替缓和曲线的布设方法,目前常用的可分为三种:第一种将两超高缓和长度不重叠地全部布设于圆曲线起讫点外,如图1所示。此法优点是:圆曲线内超高和加宽均合乎规定且平面标准较 Highway geometric linear design, low speed road, using super high relaxation length instead of the easement curve laying method, the commonly used can be divided into three kinds: the first two super-ease the length of non-overlapping all laid in the Circular curve starting and ending points, as shown in Figure 1. Advantages of this method are: round curve of ultra-high and widening are in line with the provisions of the plane standard