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公路平面设计曲线法与传统的导线法相比，能较好地与实际地形吻合。本文就曲线法基本原理及各种线型单元的设计计算公式进行了说明和推导。
Highway graphic design curve method compared with the traditional wire method, can be better with the actual terrain. This paper describes and deduces the basic principle of curve method and the design and calculation formulas of various linear units.