道路平曲线平行线弧长通用公式及应用

Road Plane Curve Parallel Arc Length General Formula and Its Application

由推导不完整回旋曲线平行线弧长公式,得出道路平曲线平行线弧长通用公式。揭示了直线、回旋曲线、圆曲线平行线弧长三者之间的内在联系。得出了一些有益的结论,最后给出了应用回旋曲线平行线弧长计算回旋曲线平行线坐标和推求曲线与平行线间所夹图形面积的具体方法。

By deriving the incomplete transition curve parallel arc length formula, the paper educed the road plane curve parallel arc length general formula and revealed the inherent contacts among straight line,transition curve and circle line, some helpful conclusions are also be given. Then the paper gived the methond of transition curve parallel coordinate calculation and area calculation between transition curve and its parallel with parallel arc length.