Static GPS relative positioning technology is widely used in the construction of rail transit horizontal control network .In this paper ,the basic situation of GPS horizontal control network of Shanghai rail transit line No .17 is introduced , and quality of the survey data is checked in accordance with the actual situation of the project to ensure the accuracy of horizontal control network to meet the requirements .%静态GPS相对定位技术在上海市轨道交通工程GPS平面控制网建设中应用广泛。尽管静态GPS技术在工程应用中较为成熟,但城市轨道交通GPS平面控制网有其特点,轨道交通专用控制网对点位相对精度要求较高,因此GPS控制网的质量控制至关重要。本文结合上海市轨道交通17号线GPS平面控制网,对实测GPS平面控制网数据进行质量控制,保证平面控制网精度满足要求。
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