缓和曲线是一种常见的曲线形式。使用极坐标法放样可以避免偏角法的局限性。
The transition curve is a familiar curve form. And lofting with polar coordinates method can break through localization of deflection Angle method.
公路平面线形设计的通用模式是将传统的直线法和曲线法结合起来，兼有两者的优点。
A general model for highway plan alignment design was introduced in this paper, which has the advantages of both the line method and curve method.
分析了公路平面线形直线型设计法的不足，提出曲线型设计法研究的必要性。
This paper analyzes the deficiency of the straight design method of highway alignment and puts forward the necessity of the researching curve design method.
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