Abstract: In this paper general network strategies,surveying methods and reasonable coordinate systems in GPS hiqhway control surveying are researched.Two practicable nework types and corresponding surveying and data processing methodsare submited.Some problems about connection with local or national geodetic natworks are also discussed.It is consideredsuitable for most of local civil engineerings on some conditions designning and constructing in WGS84 Gause-Kruger andellipsoid height system.

Key words: GPS(Globe Posisioning System), higher-grade highway control networks, ellipsoid height, gause-geoid heights

摘要： GPS定位技术在很大程度上改变了传统的测量方法，能在协议地心坐标系（ＷＧＳ８４）下实现高精度的３—Ｄ控制．使用ＧＰＳ方法建立高等级公路永久控制系统对于各阶段的测设工作有重大意义，甚至它有可能完全改变整个路线测量技术的面貌．本文主要从理论上对这种方法用于建立路线３—Ｄ控制中涉及的有关布阿方案、定位方法、坐标系统的选择以及正常高获取等问题进行了探讨． 更多还原

关键词: GPS定位, 高等级公路3—D控制, 大地高, 正常高