【摘要】 根据全站仪的特点、坐标法测设高等级公路中线的基本理论和方法，对坐标法测设公路中线点位误差的大小以及允许误差进行了分析和比较，提出了保证测设精度的措施。更多还原

【Abstract】 With the help of the characters of a tatal stations surveying instruments, the basic principle and the checking method of the surveying highway middle,with the coordinates, the paper analyses the error quantity of surveying pioint location and its tolerance, puts forward the assurance ways of setting accurancy.更多还原