1/2000数字地面模型在高速公路勘测中的精度验证及应用

Validation and application of precision of 1/2000 DTM in freeway survey

对1/2000数字地面模型DTM的高程精度进行了阐述,结合高速公路施工勘测对其进行了精度验证,并成功地应用于福建浦南高速公路施工图定测纵横断面的可靠性检查。

The accuracy of 1 ： 2 000 DTM elevation in freeway surveying is compared and analyzed in this paper. The reliability of profile and cross-section survey using construction map of Punan freeway is checked.