提高高等级公路初测导线技术要求的探讨与实践

Raising Technical Normal of High-Class Highway Reconnaissance Traverse and its Prachce

本文论述了在高等级公路勘测设计中提高初测导线技术要求的必要性与可行性。多条线路测量的实践证实，无论是采用常规勘测方式还是采用航测选线方式，应用ＧＰＳ全球定位技术建立高精度的线路控制网是确保导线点的测定精度和可靠性的最经济和有效的技术手段。

Necessity and applicability of raising technical normal of high-class highwayreconnaissance traverse is presented in the paper.Several alignment practices of either conventional reconnaissance or aerial preliminary survey showed that the application of the GPStechnique to the alignment survey in setting up a precise control network is the most economical and effective means to gurarantee accurate and reliable coordinates of traverse points.