圆曲线测设的方法很多，例如偏角法、切线支距法、弦线支距法等等。这些方法有一个共同的特点：测设数据是根据辅点的桩号（里程）计算得到的。目前，辅点桩号的确定，一是采用整桩距法，即从曲线起点（或终点）开始，按规定桩距设桩；二是采用整桩号法，即将靠近起点（或终点? There are many ways to measure the circular curve, such as the declination method, tangent offset method, chord line method and so on. These methods have one thing in common: The survey data is calculated from the stakes (miles) of the secondary points. At present, the auxiliary station number is determined, one is the use of the entire pile distance method, that is, from the beginning of the curve (or the end), according to the provisions of pile spacing pile; the second is the whole pile number law, near the starting point (or the end?