设计单位对高速公路设计控制点日益规范化、标准化,中线放样和水准测量,根据设计单位所给坐标先计算好转折角和边长,与实测结果相比较,当误差较大时应查明原因,是导线点挪动或仪器故障。当该段导线点观测角和相邻导线点边长都已实测完毕,导线点复测的外业工作即宣告结束。 Design units of the highway control points increasingly standardized design, standardization, the middle stakeout and leveling, according to the coordinates given by the design unit to calculate the turning angle and side length, compared with the measured results, when the error should be identified when the reason is larger Traverse movement or instrument failure. When the section of the wire point observation angle and the adjacent wire point side length has been measured, wire point retest of the field work that is over.